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LMT, §1A diff (2018 → 2019)

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ITEM 1A. Risk Factors An investment in our common stock or debt securities involves risks and uncertainties. We seek to identify, manage and mitigate risks to our business, but risk and uncertainty cannot be eliminated or necessarily predicted. The outcome of one or more of these risks could have a material effect on our operating results, financial position, or cash flows. You should carefully consider the following factors, in addition to the other information contained in this Annual Report on Form 10-K, before deciding to purchase our common stock or debt securities. We depend heavily on contracts with the U.S. Government, including contracts related to the program, for a substantial portion of our business. We derived 71% of our total net sales from the U.S. Government in 2019, including 61% from the DoD. We expect to continue to derive most of our sales from work performed under U.S. Government contracts. Those contracts are conditioned upon the continuing availability of Congressional appropriations. Congress usually appropriates funds on a fiscal year (FY) basis even though contract performance may extend over many years. Consequently, contracts are often partially funded initially and additional funds are committed only as Congress makes further appropriations. If we incur costs in excess of funds obligated on a contract, we may be at risk for reimbursement of those costs unless and until additional funds are obligated to the contract. The program, which consists of multiple development, production and sustainment contracts, is our largest program. It represented 27% of our total net sales in 2019 and is expected to represent a higher percentage of our sales in future years. A decision by the U.S. Government or other governments to cut spending on this program or reduce or delay planned orders would have an adverse impact on our business and results of operations. Given the size and complexity of the program, we anticipate that there will be continual reviews related to aircraft performance, program schedule, cost, and requirements as part of the DoD, Congressional, and international partners’ oversight and budgeting processes. Current program challenges include, but are not limited to, supplier and partner performance, software development, the availability and receipt of funding for production contracts on a timely basis, execution of future flight tests and findings resulting from testing and operating the aircraft, the level of cost associated with life-cycle operations and sustainment and warranties, continuing to reduce the unit production costs, and achieving cost targets. Budget uncertainty, the risk of future budget cuts, the potential for U.S. government shutdowns, the use of continuing resolutions, and the federal debt ceiling can adversely affect our industry and the funding for our programs. If a government shutdown were to occur and were to continue for an extended period of time, we could be at risk of program cancellations and other disruptions and nonpayment. If the U.S. Government operates under a continuing resolution, new contract and program starts are restricted and funding for our programs may be unavailable, reduced or delayed. The federal budget debate could also result in reductions in overall defense spending which could adversely impact our business. We believe our diverse range of defense, homeland security and information technology products and services, generally make it less likely that cuts in any specific contract or program will affect our business on a long-term basis. However, termination of multiple or large programs or contracts could adversely affect our business and future financial performance. Changes in funding priorities may afford new or additional opportunities for our businesses in terms of existing, follow-on or replacement programs, but could also reduce opportunities in existing programs and in planned programs where we intend to compete. While we would expect to compete and be well positioned as the incumbent on existing programs, we may not be successful or, even if successful, the replacement programs may be funded at lower levels. U.S. Government sanctions on Turkey and Turkey’s removal from the program could adversely impact our results of operations and cash flows. On July 17, 2019, the U.S. Government suspended Turkey’s participation in the program and initiated the process to formally remove Turkey from the program as a result of Turkey accepting delivery of the Russian S-400 air and missile defense system. To date, the Administration has not imposed sanctions on Turkish entities involved in the S-400 procurement, although sanctions under the Countering America’s Adversaries Through Sanctions Act (CAATSA) remain a risk. Additionally, sanctions could be imposed against Turkey as a result of future legislation, including the “Promoting American National Security and Preventing the Resurgence of ISIS Act of 2019” that was passed out of the Senate Foreign Relations Committee on December 11, 2019. The bill includes significant new sanction provisions targeted at Turkey that, if enacted, would directly affect Lockheed Martin programs in Turkey. Turkey could implement retaliatory sanctions if the bill moves forward in Congress in 2020.We are monitoring these developments and the potential impacts of any sanctions and other actions regarding Turkey on the program and on our other programs involving Turkey. Depending on the scope and applicability of any sanctions or other actions, the impact could be material to our operations, operating results, financial position or cash flows. Turkey is one of eight international partner countries on the program and previously committed to purchase up to 100 aircraft, of which six have completed production. Turkish suppliers also produce component parts for the program, many of which are single-sourced. To minimize the risks of disruption of our supply chain and ensure continuity of production, we have been working closely with the DoD and supporting activities to identify and engage alternate suppliers for the component parts produced by Turkish suppliers. We have made significant progress toward this end but due to the procedure to qualify new parts and suppliers, this collaborative process between DoD and Lockheed Martin is ongoing. We are in discussions with the U.S. Government with respect to the timeline for the transition of Turkish sources. While the transition timeline is an important first step, it is equally important that our replacement capacity is re-established so that production is not impacted. Efforts to date have significantly reduced our risk but final resolution on a limited number of remaining components could affect deliveries, including in 2020, and any accelerated work stoppage would impact cost. International sales of the are negotiated between the U.S. Government and international governments and the process to formally remove Turkey from the program is a government-to-government matter. We will continue to follow official U.S. Government guidance as it relates to delivery of aircraft to Turkey and the export and import of component parts from the Turkish supply chain. The full effects of potential U.S. Government sanctions on Turkey and Turkey’s removal from the program cannot be determined at this time. However, these actions could impact the timing of orders, disrupt the production of aircraft, delay delivery of aircraft, disrupt delivery of sustainment components produced in Turkey and impact funding on the program to include the result of any reprogramming of funds that may be necessary to mitigate the impact of alternate sources for component parts made in Turkey. While, in the case of the program, we expect that these costs ultimately would be recovered from the U.S. Government, the availability or timing of any recovery could adversely affect our cash flows and results of operations. We have other programs involving sales to Turkey or work with Turkish industry, including Sikorsky Black Hawk helicopter production that is dependent on sole-source components from Turkish suppliers and the Turkish Utility Helicopter Program, which is a program to produce helicopters for the Turkish Armed Forces, that could be adversely affected by the imposition of sanctions on Turkey, and potential reciprocal actions. Depending on the terms and interpretation of any sanctions, certain of these activities could be determined to be prohibited, which could result in restrictions on exports or imports, losses of future sales, reductions in backlog, return of advance payments, costs to develop alternate supply sources, restrictions on payments, force majeure events or contract terminations. Such activity also could result in claims from our suppliers, which may include both the amount established in any settlement agreements, the costs of evaluating supplier settlement proposals and the costs of negotiating settlement agreements. These effects could have a material impact on our operating results, financial position and cash flows. We are subject to a number of procurement laws and regulations, including the U.S. Government’s ability to terminate contracts for convenience. Our business and reputation could be adversely affected if we or those we do business with fail to comply with these laws. We must comply with and are affected by laws and regulations relating to the award, administration and performance of U.S. Government contracts. Government contract laws and regulations affect how we do business with our customers and impose certain risks and costs on our business. A violation of these laws and regulations by us, our employees, others working on our behalf, a supplier or a joint venture partner could harm our reputation and result in the imposition of fines and penalties, the termination of our contracts, suspension or debarment from bidding on or being awarded contracts, loss of our ability to export products or perform services and civil or criminal investigations or proceedings. In some instances, these laws and regulations impose terms or obligations that are different than those typically found in commercial transactions. For example, the U.S. Government may terminate any of our government contracts and subcontracts not only for default based on our performance but also at its convenience. Upon termination for convenience of a fixed-price type contract, typically we are entitled to receive the purchase price for delivered items, reimbursement for allowable costs for work-in-process and an allowance for profit on the contract or adjustment for loss if completion of performance would have resulted in a loss. Upon termination for convenience of a cost-reimbursable contract, we normally are entitled to reimbursement of allowable costs plus a portion of the fee where allowable costs include our cost to terminate agreements with our suppliers and subcontractors. The amount of the fee recovered, if any, is related to the portion of the work accomplished prior to termination and is determined by negotiation. We attempt to ensure that adequate funds are available by notifying the customer when its estimated costs, including those associated with a possible termination for convenience, approach levels specified as being allotted to its programs. As funds are typically appropriated on a fiscal year basis and as the costs of a termination for convenience may exceed the costs of continuing a program in a given fiscal year; however, programs occasionally do not have sufficient funds appropriated to cover the termination costs if the government were to terminate them for convenience. Under such circumstances, the U.S. Government could assert that it is not required to appropriate additional funding. A termination arising out of our default may expose us to liability and have a material adverse effect on our ability to compete for future contracts and orders. In addition, on those contracts for which we are teamed with others and are not the prime contractor, the U.S. Government could terminate a prime contract under which we are a subcontractor, notwithstanding the fact that our performance and the quality of the products or services we delivered were consistent with our contractual obligations as a subcontractor. In the case of termination for default, the U.S. Government could make claims to reduce the contract value or recover its procurement costs and could assess other special penalties. Under such circumstances we may have rights and there may be remedial actions available to us under applicable laws and the FAR. Additionally, our programs for the U.S. Government often operate for periods of time under UCAs, which means that we begin performing our obligations before the terms, specifications or price are finally agreed to between the parties. The U.S. Government has the ability to unilaterally definitize contracts, which, absent a successful appeal, obligates us to perform under terms and conditions imposed by the U.S. Government. The U.S. Government has unilaterally definitized contracts with us in the past, most notably the LRIP 9 contract in 2016, and may do so in the future. The U.S. Government’s power to unilaterally definitize a contract can affect our ability to negotiate mutually agreeable contract terms and, if a contract is unilaterally imposed upon us, it may negatively affect our expected profit and cash flows on a program or impose burdensome terms. Certain of our U.S. Government contracts span one or more base years and include multiple option years. The U.S. Government generally has the right not to exercise option periods and may not exercise an option period for various reasons. The U.S. Government also may decide to exercise option periods for contracts under which it is expected that our costs may exceed the contract price or ceiling, which could result in losses or unreimbursed costs. Evolving U.S. Government procurement policies and increased emphasis on cost over performance could adversely affect our business. The U.S. Government could implement procurement policies that negatively impact our profitability. Changes in procurement policy favoring more incentive-based fee arrangements, different award fee criteria or government contract negotiation offers based upon the customer’s view of what our costs should be (as compared to our actual costs) may affect the predictability of our profit rates or make it more difficult to compete on certain types of programs. Our customers also may pursue non-traditional contract provisions or contract type in negotiation of contracts. The U.S. Government’s preference for fixed-price contracting has resulted in what we believe to be the inappropriate application of fixed-priced contracting methods to development programs. By their nature, the technical challenges, costs and timing of development programs are difficult to estimate and the use of fixed-price instead of cost-reimbursable contracts for such programs increases the financial risk to the contractor. This increased risk may lead to losses on fixed price development programs or may cause us not to bid on future fixed-price development programs. From time to time, the U.S. Government also has proposed contract terms or taken positions that represent fundamental changes from historical practices or that we believe are inconsistent with the FAR. As recommended by a June 2019 U.S. Government Accountability Office (GAO) Report on contract financing, the DoD has stated that it will conduct a comprehensive assessment of the effect that DoD contract financing and profit policies have on the defense industry. We have no assurance regarding the full scope and recurrence of any study and what changes will be proposed, if any, and their impact on our working capital, cash flow, profit or results of operation. Earlier changes proposed by the DoD in 2018 and later withdrawn would have had a negative effect on the timing of our cash flows. We are routinely subject to audit by our customers on government contracts and the results of those audits could have an adverse effect on our business, reputation and results of operations. U.S. Government agencies, including the Defense Contract Audit Agency, the Defense Contract Management Agency and various agency Inspectors General, routinely audit and investigate government contractors. These agencies review a contractor’s performance under its contracts, its cost structure, its business systems and compliance with applicable laws, regulations and standards. The U.S. Government has the ability to decrease or withhold certain payments when it deems systems subject to its review to be inadequate. Additionally, any costs found to be misclassified may be subject to repayment and from time to time we have had substantial disagreements with government auditors regarding the allowability of costs incurred by us under government contracts, which further delays payments even if we are correct in our positions. We have unaudited or unsettled incurred cost claims related to past years, which limits our ability to issue final billings on contracts for which authorized and appropriated funds may be expiring or can result in substantial delays in final billings and our ability to close out a contract. If an audit or investigation uncovers improper or illegal activities, we may be subject to civil or criminal penalties and administrative sanctions, including reductions of the value of contracts, contract modifications or terminations, forfeiture of profits, suspension of payments, penalties, fines, suspension, or prohibition from doing business with the U.S. Government. In addition, we could suffer serious reputational harm if allegations of impropriety were made against us. Similar government oversight exists in most other countries where we conduct business. Our profitability and cash flow may vary based on the mix of our contracts and programs, our performance, and our ability to control costs. Our profitability and cash flow may vary materially depending on the types of government contracts undertaken, the nature of products produced or services performed under those contracts, the costs incurred in performing the work, the achievement of other performance objectives and the stage of performance at which the right to receive fees is determined, particularly under award and incentive-fee contracts. Failure to perform to customer expectations and contract requirements may result in reduced fees or losses and may adversely affect our financial performance. Our backlog includes a variety of contract types and represents the sales we expect to recognize for our products and services in the future. Contract types primarily include fixed-price and cost-reimbursable contracts. Under each type of contract, if we are unable to control costs, our operating results could be adversely affected, particularly if we are unable to justify an increase in contract value to our customers. Cost overruns or the failure to perform on existing programs also may adversely affect our ability to retain existing programs and win future contract awards. Under fixed-price contracts, we agree to perform specified work for a pre-determined price. To the extent our actual costs vary from the estimates upon which the price was negotiated, we will generate more or less profit or could incur a loss. Some fixed-price contracts have a performance-based component under which we may earn incentive payments or incur financial penalties based on our performance. Cost-reimbursable contracts provide for the payment of allowable costs incurred during performance of the contract plus a fee up to a ceiling based on the amount that has been funded. Typically, we enter into three types of cost-reimbursable contracts: cost-plus-award-fee, cost-plus-incentive-fee, and cost-plus-fixed-fee. Cost-plus-award-fee contracts provide for an award fee that varies within specified limits based on the customer’s assessment of our performance against a predetermined set of criteria, such as targets based on cost, quality, technical and schedule criteria. Cost-plus-incentive-fee contracts provide for reimbursement of costs plus a fee that is adjusted by a formula based on the relationship of total allowable costs to total target costs (i.e., incentive based on cost) or reimbursement of costs plus an incentive to exceed stated performance targets (i.e., incentive based on performance). The fixed-fee in a cost-plus-fixed-fee contract is negotiated at the inception of the contract and that fixed-fee does not vary with actual costs. Contracts for development programs with complex design and technical challenges are often cost-reimbursable. In these cases, the associated financial risks primarily relate to a reduction in fees and the program could be canceled if cost, schedule or technical performance issues arise. Other contracts included in our backlog are for the transition from development to production (e.g., LRIP contracts), which includes the challenge of starting and stabilizing a manufacturing production and test line while the final design is being validated and managing change in requirements or capabilities. These contracts frequently are cost-reimbursable or fixed-price incentive-fee contracts. Generally, if our costs exceed the contract target cost or are not allowable under the applicable regulations, we may not be able to obtain reimbursement for all costs and may have our fees reduced or eliminated. There are also contracts for production, as well as operations and maintenance of the delivered products, that have the challenge of achieving a stable production and delivery rate, while maintaining operability of the product after delivery. These contracts are mainly fixed-price. In addition, certain contracts, primarily those associated with our Space business segment, contain provisions that require us to forfeit fees, pay penalties, or provide replacement systems in the event of performance failure, which could negatively affect our earnings and cash flows. Increased competition and bid protests in a budget-constrained environment may make it more difficult to maintain our financial performance and customer relationships. A substantial portion of our business is awarded through competitive bidding. The U.S. Government increasingly has relied on competitive contract award types, including indefinite-delivery, indefinite-quantity and other multi-award contracts, which have the potential to create pricing pressure and to increase our costs by requiring us to submit multiple bids and proposals. Multi-award contracts require us to make sustained efforts to obtain task orders under the contract. Additionally, recent competitive bids have not contained cost-realism evaluation criteria which has led to competitors taking aggressive pricing positions. The competitive bidding process entails substantial costs and managerial time to prepare bids and proposals for contracts that may not be awarded to us or may be split among competitors. Additionally, the U.S. Government may fail to award us large competitive contracts in an effort to maintain a broader industrial base. Even if we are successful in obtaining an award, we may encounter bid protests from unsuccessful bidders on new program awards. Unsuccessful bidders may protest in the hope of being awarded a subcontract for a portion of the work in return for withdrawing the protest. Bid protests could result in significant expenses to us, contract modifications or even loss of the contract award. Even where a bid protest does not result in the loss of a contract award, the resolution can extend the time until contract activity can begin and, as a result, delay the recognition of sales. We also may not be successful in our efforts to protest or challenge any bids for contracts that were not awarded to us and we could incur significant time and expense in such efforts. We are experiencing increased competition while, at the same time, many of our customers are facing budget pressures, trying to do more with less by cutting costs, identifying more affordable solutions, performing certain work internally rather than hiring contractors, and reducing product development cycles. Recent acquisitions in our industry, particularly vertical integration by tier-1 prime contractors, could also result in increased competition or limit our access to certain suppliers. To remain competitive, we must maintain consistently strong customer relationships, seek to understand customer priorities and provide superior performance, advanced technology solutions and service at an affordable cost with the agility that our customers require to satisfy their mission objectives in an increasingly price competitive environment. We are the prime contractor on most of our contracts and if our subcontractors, suppliers or teaming agreement or joint venture partners fail to perform their obligations, our performance and our ability to win future business could be harmed. We rely on other companies to provide materials, major components and products, and to perform a portion of the services that are provided to our customers under the terms of most of our contracts. These arrangements may involve subcontracts, teaming arrangements, joint ventures or supply agreements with other companies upon which we rely (contracting parties). There is a risk that the contracting party does not perform at all or to our expectations or meet affordability targets and we may have disputes with our contracting parties, including disputes regarding the quality and timeliness of work performed, the workshare provided to that party, customer concerns about the other party’s performance, our failure to extend existing task orders or issue new task orders, or our hiring the personnel of a subcontractor, teammate or joint venture partner or vice versa. We could also be adversely affected by actions by or issues experienced by our contracting parties that are outside of our control, such as misconduct and reputational issues involving our contracting parties, which could subject us to liability or adversely affect our ability to compete for contract awards. Changes in the economic environment, including geopolitical events, defense budgets, trade sanctions and constraints on available financing, and the highly competitive and budget constrained environment in which we operate, may adversely affect the financial stability of our contracting parties or their ability to meet their performance requirements or to provide needed supplies or services on a timely basis. Some scarce raw materials required for our products are largely controlled by a single country and therefore can be adversely impacted by potential trade actions involving that country. Additionally, our efforts to increase the efficiency of our operations and improve the affordability of our products and services could negatively impact our ability to attract and retain suppliers. We must comply with specific procurement requirements which can limit the available suppliers and we do not have secondary suppliers for some supplies and the qualification of new or additional suppliers can under some circumstances take an extended period of time. A failure, for whatever reason, by one or more of our contracting parties to provide the agreed-upon supplies or perform the agreed-upon services on a timely basis, according to specifications, or at all, may affect our ability to perform our obligations and require that we transition the work to other companies. Contracting party performance deficiencies may result in additional costs or delays in product deliveries and affect our operating results and could result in a customer terminating our contract for default or convenience. A default termination could expose us to liability and affect our ability to compete for future contracts and orders. Our success depends, in part, on our ability to develop new technologies, products and services and efficiently produce and deliver existing products. Many of the products and services we provide are highly engineered and involve sophisticated technologies with related complex manufacturing and system integration processes. Our customers’ requirements change and evolve regularly. Accordingly, our future performance depends, in part, on our ability to adapt to changing customer needs rapidly, identify emerging technological trends, develop and manufacture innovative products and services efficiently and bring those offerings to market quickly at cost-effective prices. This includes efforts to implement emerging digital technologies and capabilities. Due to the complex nature of the products and services we offer, we may experience technical difficulties during the development of new products or technologies. These technical difficulties could result in delays and higher costs, which may negatively impact our financial results, and could divert resources from other projects, until such products or technologies are fully developed. See “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for further details about losses incurred on certain development programs. Additionally, there can be no assurance that our development projects will be successful or meet the needs of our customers. Our competitors may also develop new technology, or offerings, or more efficient ways to produce existing products that could cause our existing offerings to become obsolete or that could gain market acceptance before our own competitive offerings. If we fail in our development projects or if our new products or technologies fail to achieve customer acceptance, our ability to procure new contracts could be unsuccessful and this could negatively impact our financial results. We may be unable to benefit fully from or adequately protect our intellectual property rights or use third-party intellectual property, which could negatively affect our business. We routinely apply for and own a substantial number of U.S. and foreign patents and trademarks related to the products and services we provide. In addition to owning a large portfolio of patents and trademarks, we develop and own other intellectual property, including copyrights, trade secrets and research, development and engineering know-how, which contribute significantly to our business. We also license intellectual property to and from third parties. The FAR and DFARS provide that the U.S. government obtains certain rights in intellectual property, including patents, developed by us and our subcontractors and suppliers in performance of government contracts or with government funding. The U.S. government may use or authorize others, including competitors, to use such intellectual property. Non-U.S. governments may also have certain rights in patents and other intellectual property developed in performance of our contracts with these entities. The U.S. government is taking increasingly aggressive positions regarding the types of intellectual property to which government use rights apply and when it is appropriate for the government to insist on broad use rights. The DoD is also developing an overarching intellectual property acquisition policy that will require a greater focus and planning as to intellectual property rights for its programs, and we have no assurance as to the potential impacts of this policy or any associated regulatory changes on future acquisitions. The DoD’s efforts could affect our ability to protect and exploit our intellectual property and to leverage supplier intellectual property, for example, if we are unable to obtain necessary licenses from our suppliers to meet government requirements. Additionally, while we take measures to protect and enforce our intellectual property rights and to respect the intellectual property rights of others, our intellectual property and intellectual property licensed or obtained from third parties is subject to challenges (such as infringement and misappropriation claims) by third parties, which could adversely affect our ability to compete and perform on contracts. International sales may pose different political, economic, regulatory, competition and other risks. In 2019, 28% of our total net sales were from international customers. We have a strategy to continue to grow international sales, inclusive of sales of aircraft to our international partner countries and other countries. International sales are subject to numerous political and economic factors, regulatory requirements, significant competition, taxation, and other risks associated with doing business in foreign countries. Our exposure to such risks may further increase if our international sales grow as we anticipate. In international sales, we face substantial competition from both U.S. manufacturers and international manufacturers whose governments sometimes provide research and development assistance, marketing subsidies and other assistance for their products and services. Additionally, many of our competitors are also focusing on increasing international sales. Our international business is conducted through foreign military sales (FMS) contracted through the U.S. Government to international customers and by direct commercial sales (DCS) to such customers. In 2019, approximately 67% of our sales to international customers were FMS and about 33% were DCS. These transaction types differ as FMS transactions entail agreements between the U.S. Government and our international customers through which the U.S. Government purchases products or services from us on behalf of the foreign customer with our contract with the U.S. Government being subject to the FAR and the DFARS. In contrast, DCS transactions represent sales by us directly to international customers and are not subject to the FAR or the DFARS. All sales to international customers are subject to U.S. and foreign laws and regulations, including import-export control, technology transfer restrictions, investments, taxation, repatriation of earnings, exchange controls, the Foreign Corrupt Practices Act and other anti-corruption laws and regulations, and the anti-boycott provisions of the U.S. Export Administration Act. While we have extensive policies in place to comply with such laws and regulations, failure by us, our employees or others working on our behalf to comply with these laws and regulations could result in administrative, civil, or criminal liabilities, including suspension, debarment from bidding for or performing government contracts, or suspension of our export privileges, which could have a material adverse effect on us. We frequently team with international subcontractors and suppliers who also are exposed to similar risks. While international sales, whether contracted as FMS or DCS, present risks that are different and potentially greater than those encountered in our U.S. business; DCS with international customers may impose even greater risks. DCS transactions involve direct commercial relationships with parties with whom we have less familiarity and where there may be significant cultural differences. Additionally, international procurement and local country rules and regulations, contract laws, judicial systems, and contractual terms differ from those in the U.S. and are less familiar to us and may treat as criminal matters issues that would be considered civil matters in the U.S. International regulations may be interpreted by foreign courts less bound by precedent and with more discretion; these interpretations frequently have terms less favorable to us than the FAR. Export and import and currency risk also may be increased for DCS with international customers. While these risks are potentially greater than those encountered in our U.S. business, we seek to price our products and services commensurate with the risk profile on DCS with international customers. In conjunction with defense procurements, some international customers require contractors to comply with industrial cooperation regulations, including entering into industrial cooperation agreements, sometimes referred to as offset agreements. Recently, certain customers have increased their demands for offset commitment levels and higher-value content, including the transfer of technologies and local production and economic development. Expectations as to offset commitments may exceed existing local technical capability. Offset agreements may require in-country purchases, technology transfers, local manufacturing support, investments in foreign joint ventures and financial support projects as an incentive or as a condition to a contract award. In some countries, these offset agreements may require the establishment of a joint venture with a local company, which must control the joint venture. The costs to satisfy our offset obligations are included in the estimates of our total costs to complete the contract and may impact our profitability and cash flows. The ability to recover investments that we make is generally dependent upon the successful operation of joint ventures that we do not control and may involve products and services that are dissimilar to our business activities. In these and other situations, we could be liable for violations of law for actions taken by these entities such as laws related to anti-corruption, import and export, taxation and anti-boycott restrictions. Offset agreements generally extend over several years and may provide for penalties in the event we fail to perform in accordance with the offset requirements, which are typically subjective and can be outside of our control. Political issues and considerations, both in the U.S. and internationally, could have a significant effect on our business. Our international business is highly sensitive to changes in regulations (including tariffs, sanctions, embargoes, export and import controls and other trade restrictions), political environments or security risks that may affect our ability to conduct business outside of the U.S., including those regarding investment, procurement, taxation and repatriation of earnings. We continue to evaluate the potential effect of the United Kingdom’s (UK) departure from the European Union (EU) (commonly referred to as Brexit) on our business operations and financial results. We anticipate that the most probable near-term effects are likely to reflect the pressure Brexit is placing on the UK government, which may influence the government’s ability to make decisions on large complex programs of the type we perform. Brexit also may have adverse implications on the movement of products or sustainment activities between the UK and EU. Additionally, Brexit may impact the value of the pound sterling. If the pound sterling were to remain depressed against the U.S. dollar, this could negatively impact the ability of the UK government to afford our products and services. While we have operations in the UK and these operations have activity between the UK and the EU (e.g., sales, supply chain, or reliance on personnel), we currently do not anticipate that Brexit will have a material impact on our operations or our financial results. Additionally, our practice is to substantially hedge all of our currency exposure. Therefore, we do not have material currency exposure to the pound sterling or the euro. International sales also may be affected by actions taken by the U.S. Government in the exercise of foreign policy, Congressional oversight or the financing of particular programs. For example, Congress may act to prevent or impose conditions upon the sale or delivery of our products, such as delays in obtaining Congressional approvals for exports requiring Congressional notification to the Kingdom of Saudi Arabia and Turkey and the suspension of sales of aircraft to Turkey and potential sanctions. In addition, discussions in Congress may result in sanctions on the Kingdom of Saudi Arabia. Our international business also may be impacted by changes in foreign national priorities, foreign government budgets, global economic conditions, and fluctuations in foreign currency exchange rates. Sales of military products are also affected by defense budgets and U.S. foreign policy, including trade restrictions and disputes, and there could be significant delays or other issues in reaching definitive agreements for announced programs and international customer priorities could change. Additionally, the timing of orders from our international customers can be less predictable than for our U.S. customers and may lead to fluctuations in the amount reported each year for our international sales. Our efforts to minimize the likelihood and impact of adverse cybersecurity incidents and to protect data and intellectual property may not be successful and our business could be negatively affected by cyber or other security threats or other disruptions. We routinely experience various cybersecurity threats, threats to our information technology infrastructure, unauthorized attempts to gain access to our company, employee- and customer-sensitive information, insider threats and denial-of-service attacks as do our customers, suppliers, subcontractors and joint venture partners. We experience similar security threats at customer sites that we operate and manage. The threats we face vary from attacks common to most industries, to more advanced and persistent, highly organized adversaries, including nation states. These nation state actors target us and other defense contractors for several reasons, including because we protect national security information and develop advanced technology systems. If we are unable to protect sensitive information, including complying with evolving information security and data protection/privacy regulations, our customers or governmental authorities could question the adequacy of our threat mitigation and detection processes and procedures. Moreover, depending on the severity of an incident, our customers’ data, our employees’ data, our intellectual property (including trade secrets and research, development and engineering know-how), and other third-party data (such as teammates, joint venture partners, subcontractors, suppliers and vendors) could be compromised. Products and services we provide to customers also carry cybersecurity risks, including risks that they could be breached or fail to detect, prevent or combat attacks, which could result in losses to our customers and claims against us, and could harm our relationships with our customers. We take a variety of precautions to protect our systems and data, including a Computer Incident Response Team (CIRT) to defend against cyber attacks and regular periodic training of our employees on protection of sensitive information, including training intended to prevent the success of “phishing” attacks. However, as a consequence of the persistence, sophistication and volume of cyber attacks, we may not be successful in defending against all such attacks. We also have a corporate-wide counterintelligence and insider threat detection program to proactively identify external and internal threats, and mitigate those threats in a timely manner. Nevertheless, due to the evolving nature of these security threats and the national security aspects of much of the data we protect, the impact of any future incident cannot be predicted. In addition to cyber threats, we experience threats to the security of our facilities and employees and threats from terrorist acts. We also typically work cooperatively with our customers, suppliers, subcontractors, joint venture partners and entities we acquire, whom are subject to similar threats, to seek to minimize the impact of cyber threats, other security threats or business disruptions. However, we must rely on the safeguards put in place by these entities, and other entities, none of which we control, who have access to our information, and thus may affect the security of our information or the information we are obligated to protect. These entities have varying levels of cybersecurity expertise and safeguards, and their relationships with government contractors, including us, may increase the likelihood that they are targeted by the same cyber threats we face. We have thousands of direct suppliers and even more indirect suppliers with a wide variety of systems and cybersecurity capabilities and adversaries actively seek to exploit security and cybersecurity weaknesses in our supply chain. A breach in our multi-tiered supply chain could impact our data or customer deliverables. We also must rely on this supply chain for detecting and reporting cyber incidents, which could affect our ability to report or respond to cybersecurity incidents effectively or in a timely manner. The costs related to cyber or other security threats or disruptions may not be fully insured or indemnified by other means. Additionally, some cyber technologies we develop under contract for our customers, particularly those related to homeland security, may raise potential liabilities related to intellectual property and civil liberties, including privacy concerns, which may not be fully insured or indemnified by other means or involve reputational risk. Our enterprise risk management program includes threat detection and cybersecurity mitigation plans, and our disclosure controls and procedures address cybersecurity and include elements intended to ensure that there is an analysis of potential disclosure obligations arising from security breaches. We also maintain compliance programs to address the potential applicability of restrictions on trading while in possession of material, nonpublic information generally and in connection with a cybersecurity breach. If we fail to manage acquisitions, divestitures, equity investments and other transactions successfully or if acquired entities or equity investments fail to perform as expected, our financial results, business and future prospects could be harmed. In pursuing our business strategy, we routinely conduct discussions, evaluate companies, and enter into agreements regarding possible acquisitions, joint ventures, other investments and divestitures. We seek to identify acquisition or investment opportunities that will expand or complement our existing products and services or customer base, at attractive valuations. We often compete with other companies for the same opportunities. To be successful, we must conduct due diligence to identify valuation issues and potential loss contingencies; negotiate transaction terms; complete and close complex transactions; integrate acquired companies and employees; and realize anticipated operating synergies efficiently and effectively. Acquisition, divestiture, joint venture and investment transactions often require substantial management resources and have the potential to divert our attention from our existing business. Unidentified or identified but un-indemnified pre-closing liabilities could affect our future financial results, particularly through successor liability under procurement laws and regulations such as the False Claims Act or Truth in Negotiations Act, anti-corruption, environmental, tax, import-export and technology transfer laws which provide for civil and criminal penalties and the potential for debarment. We also may incur unanticipated costs or expenses, including post-closing asset impairment charges, expenses associated with eliminating duplicate facilities, employee retention, transaction-related or other litigation, and other liabilities. Any of the foregoing could adversely affect our business and results of operations. Joint ventures and other noncontrolling investments operate under shared control with other parties. Depending on our rights and percentage of ownership, we may consolidate the financial results of such entities or account for our interests under the equity method. Under the equity method of accounting for nonconsolidated ventures and investments, we recognize our share of the operating profit or loss of these joint ventures in our results of operations. Our operating results may be affected by the performance of businesses over which we do not exercise control, which includes the inability to prevent strategic decisions that may adversely affect our business, financial condition and results of operations. As a result, we may not be successful in achieving the growth or other intended benefits of strategic investments. Our joint ventures face many of the same risks and uncertainties as we do. The most significant impact of our equity investments is in our Space business segment where approximately 12% of its 2019 operating profit was derived from its share of earnings from equity method investees, particularly that in United Launch Alliance (ULA). During 2018, we recognized a non-cash asset impairment charge of $110 million related to our equity method investee, Advanced Military Maintenance, Repair and Overhaul Center LLC (AMMROC). As of December 31, 2019, the carrying value of our investment in AMMROC is $435 million. We are continuing to monitor this investment, in light of ongoing performance, business base and economic issues and we may have to record our portion of additional charges, or an impairment of our investment, or both, should the carrying value of our investment exceed its fair value. Substantially all of AMMROC’s current business is dependent on one contract that is currently up for re-competition and if AMMROC is not successful in securing such business on terms consistent with prior contracts, or at all, the carrying value of our investment would be adversely affected. These charges could adversely affect our results of operations. See “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements. Through our Lockheed Martin Ventures Fund, we make investments in companies (both within the U.S. and in other countries) that we believe are developing disruptive technologies applicable to our core businesses and new initiatives important to Lockheed Martin. These investments may be in the forms of common or preferred stock, convertible debt securities or investments in funds. Typically, we hold a non-controlling interest and, therefore, are unable to influence strategic decisions by these companies and may have limited visibility into their activities, which may result in our not realizing the intended benefits of the investments. We have also begun investing in funds that invest in other companies. We have less influence and visibility as a non-controlling investor in a fund. There can be no assurance that we will continue to increase our dividend or to repurchase shares of our common stock at current levels. Cash dividend payments and share repurchases are subject to limitations under applicable laws and the discretion of our Board of Directors and are determined after considering then-existing conditions, including earnings, other operating results and capital requirements. Our payment of dividends and share repurchases could vary from historical practices or our stated expectations. Decreases in asset values or increases in liabilities, including liabilities associated with benefit plans and assets and liabilities associated with taxes, can reduce net earnings and stockholders’ equity. A deficit in stockholders’ equity could limit our ability to pay dividends and make share repurchases under Maryland state law in the future. In addition, the timing and amount of share repurchases under board approved share repurchase plans is within the discretion of management and will depend on many factors, including results of operations, capital requirements and applicable law. Our business involves significant risks and uncertainties that may not be covered by indemnity or insurance. A significant portion of our business relates to designing, developing and manufacturing advanced defense and technology products and systems. New technologies may be untested or unproven. Failure of some of these products and services could result in extensive loss of life or property damage. Accordingly, we may incur liabilities that are unique to our products and services. In some but not all circumstances, we may be entitled to certain legal protections or indemnifications from our customers, either through U.S. Government indemnifications under Public Law 85-804 or the Price-Anderson Act, qualification of our products and services by the Department of Homeland Security under the SAFETY Act provisions of the Homeland Security Act of 2002, contractual provisions or otherwise. We endeavor to obtain insurance coverage from established insurance carriers to cover these risks and liabilities. The amount of insurance coverage that we maintain may not be adequate to cover all claims or liabilities. Existing coverage may be canceled while we remain exposed to the risk and it is not possible to obtain insurance to protect against all operational risks, natural hazards and liabilities. For example, we are limited in the amount of insurance we can obtain to cover certain natural hazards such as earthquakes, fires or extreme weather conditions. We have significant operations in geographic areas prone to these risks, such as in California, Florida and Texas. Even if insurance coverage is available, we may not be able to obtain it in an amount, at a price or on terms acceptable to us. Some insurance providers may be unable or unwilling to provide us insurance given the nature of our business or products. Additionally, disputes with insurance carriers over coverage terms or the insolvency of one or more of our insurance carriers may significantly affect the amount or timing of our cash flows. Substantial costs resulting from an accident; failure of or defect in our products or services; natural catastrophe or other incident; or liability arising from our products and services in excess of any legal protection, indemnity, and our insurance coverage (or for which indemnity or insurance is not available or not obtained) could adversely impact our financial condition, cash flows, and operating results. Any accident, failure of, or defect in our products or services, even if fully indemnified or insured, could negatively affect our reputation among our customers and the public and make it more difficult for us to compete effectively. It also could affect the cost and availability of adequate insurance in the future. Pension funding and costs are dependent on several economic assumptions which if changed may cause our future earnings and cash flow to fluctuate significantly as well as affect the affordability of our products and services. Many of our employees are covered by defined benefit pension plans, retiree medical and life insurance plans, and other postemployment plans (collectively, postretirement benefit plans). The impact of these plans on our earnings may be volatile in that the amount of expense we record for our postretirement benefit plans may materially change from year to year because the calculations are sensitive to changes in several key economic assumptions including interest rates and rates of return on plan assets, other actuarial assumptions including participant longevity (also known as mortality) and employee turnover, as well as the timing of cash funding. Changes in these factors, including actual returns on plan assets, may also affect our plan funding, cash flow and stockholders’ equity. In addition, the funding of our plans and recovery of costs on our contracts, as described below, may also be subject to changes caused by legislative or regulatory actions. With regard to cash flow, we make substantial cash contributions to our plans as required by the Employee Retirement Income Security Act of 1974 (ERISA), as amended by the Pension Protection Act of 2006 (PPA). We generally are able to recover these contributions related to our plans as allowable costs on our U.S. Government contracts, including FMS. However, there is a lag between the time when we contribute cash to our plans under pension funding rules and when we recover pension costs under U.S. Government Cost Accounting Standards (CAS). We also may not be successful in our efforts to reduce the volatility of our outstanding pension obligations and to accelerate CAS recovery and recover associated costs from the U.S. Government. For more information on how these factors could impact earnings, financial position, cash flow and stockholders’ equity, see “Critical Accounting Policies - Postretirement Benefit Plans” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 11 - Postretirement Benefit Plans” included in our Notes to Consolidated Financial Statements. Environmental costs could adversely affect our future earnings as well as the affordability of our products and services. Our operations are subject to and affected by a variety of federal, state, local and foreign environmental protection laws and regulations. We are involved in environmental remediation at some of our current and former facilities and at third-party-owned sites where we have been designated a potentially responsible party as a result of our prior activities and those of our predecessor companies. In addition, we could be affected by future regulations imposed or claims asserted in response to concerns over climate change, other aspects of the environment or natural resources. We have an ongoing, comprehensive sustainability program to reduce the effects of our operations on the environment. We manage and have managed various U.S. Government-owned facilities on behalf of the U.S. Government. At such facilities, environmental compliance and remediation costs historically have been the responsibility of the U.S. Government. We have relied, and continue to rely with respect to past practices, on U.S. Government funding to pay such costs, notwithstanding efforts by some U.S. Government representatives to limit this responsibility. Although the U.S. Government remains responsible for capital and operating costs associated with environmental compliance, responsibility for fines and penalties associated with environmental noncompliance typically is borne by either the U.S. Government or the contractor, depending on the contract and the relevant facts. Some environmental laws include criminal provisions. A conviction under environmental law could affect our ability to be awarded future or perform under existing U.S. Government contracts. We have incurred and will continue to incur liabilities under various federal, state, local and foreign statutes for environmental protection and remediation. The extent of our financial exposure cannot in all cases be reasonably estimated at this time. Among the variables management must assess in evaluating costs associated with these cases and remediation sites generally are the status of site assessment, extent of the contamination, impacts on natural resources, changing cost estimates, evolution of technologies used to remediate the site, continually evolving environmental standards and cost allowability issues, including varying efforts by the U.S. Government to limit allowability of our costs in resolving liability at third-party-owned sites. For information regarding these matters, including current estimates of the amounts that we believe are required for environmental remediation to the extent probable and estimable, see “Critical Accounting Policies - Environmental Matters” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 14 - Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements. We are involved in a number of legal proceedings. We cannot predict the outcome of litigation and other contingencies with certainty. Our business may be adversely affected by the outcome of legal proceedings and other contingencies that cannot be predicted with certainty. As required by U.S. GAAP, we estimate loss contingencies and establish reserves based on our assessment of contingencies where liability is deemed probable and reasonably estimable in light of the facts and circumstances known to us at a particular point in time. Subsequent developments in legal proceedings may affect our assessment and estimates of the loss contingency recorded as a liability or as a reserve against assets in our financial statements. For a description of our current legal proceedings, see Item 3 - Legal Proceedings along with “Note 14 - Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements. Our business and financial performance depends, in part, on our ability to identify, attract and retain a highly skilled workforce. Due to the specialized nature of our business, our future performance is highly dependent upon our ability to identify, attract and retain a workforce with the requisite skills in multiple areas including: engineering, science, manufacturing, information technology, cybersecurity, business development and strategy and management. Our operating performance is also dependent upon personnel who hold security clearances and receive substantial training in order to work on certain programs or tasks. Additionally, as we expand our operations internationally, it is increasingly important to hire and retain personnel with relevant experience in local laws, regulations, customs, traditions and business practices. We face a number of challenges that may affect personnel retention such as our endeavors to increase the efficiency of our operations and improve the affordability of our products and services such as workforce reductions and consolidating and relocating certain operations. Additionally, a substantial portion of our workforce (including personnel in leadership positions) are retirement-eligible or nearing retirement. To the extent that we lose experienced personnel, it is critical that we develop other employees, hire new qualified personnel, and successfully manage the short and long-term transfer of critical knowledge and skills. Competition for personnel is intense, and we may not be successful in attracting or retaining personnel with the requisite skills or clearances. We increasingly compete with commercial technology companies outside of the aerospace and defense industry for qualified technical, cyber and scientific positions as the number of qualified domestic engineers is decreasing and the number of cyber professionals is not keeping up with demand. To the extent that these companies grow at a faster rate or face fewer cost and product pricing constraints, they may be able to offer more attractive compensation and other benefits to candidates or our existing employees. If the demand for skilled personnel exceeds supply, we could experience higher labor, recruiting or training costs in order to attract and retain such employees. We could experience difficulty in performing our contracts and executing on new or growing programs if we have a shortage of skilled employees or if our recruiting is delayed. We also must manage leadership development and succession planning throughout our business. While we have processes in place for management transition and the transfer of knowledge and skills, the loss of key personnel, coupled with an inability to adequately train other personnel, hire new personnel or transfer knowledge and skills, could significantly impact our ability to perform under our contracts and execute on new or growing programs. Approximately 20% of our employees are covered by collective bargaining agreements with various unions. If we encounter difficulties with renegotiations or renewals of collective bargaining arrangements or are unsuccessful in those efforts, we could incur additional costs and experience work stoppages. Union actions at suppliers can also affect us. Any delays or work stoppages could adversely affect our ability to perform under our contracts, which could negatively impact our results of operations, cash flows, and financial condition. Our estimates and projections may prove to be inaccurate and certain of our assets may be at risk of future impairment. The accounting for some of our most significant activities is based on judgments and estimates, which are complex and subject to many variables. For example, accounting for sales using the percentage-of-completion method requires that we assess risks and make assumptions regarding schedule, cost, technical and performance issues for thousands of contracts, many of which are long-term in nature. Additionally, we initially allocate the purchase price of acquired businesses based on a preliminary assessment of the fair value of identifiable assets acquired and liabilities assumed. For significant acquisitions we may use a one-year measurement period to analyze and assess a number of factors used in establishing the asset and liability fair values as of the acquisition date which could result in adjustments to asset and liability balances. We have $10.6 billion of goodwill assets recorded on our consolidated balance sheet as of December 31, 2019 from previous acquisitions, which represents approximately 22% of our total assets. These goodwill assets are subject to annual impairment testing and more frequent testing upon the occurrence of certain events or significant changes in circumstances that indicate goodwill may be impaired. If we experience changes or factors arise that negatively affect the expected cash flows of a reporting unit, we may be required to write off all or a portion of the reporting unit’s related goodwill assets. The carrying value and fair value of our Sikorsky reporting unit are closely aligned. Therefore, any business deterioration, contract cancellations or terminations, or market pressures could cause our sales, earnings and cash flows to decline below current projections and could cause goodwill and intangible assets to be impaired. Additionally, Sikorsky may not perform as expected, or demand for its products may be adversely affected by global economic conditions, including oil and gas trends that are outside of our control. Changes in U.S. (federal or state) or foreign tax laws and regulations, or their interpretation and application, including those with retroactive effect, including the amortization for research or experimental expenditures, could result in increases in our tax expense and affect profitability and cash flows. The amount of net deferred tax assets will change periodically based on several factors, including the measurement of our postretirement benefit plan obligations, actual cash contributions to our postretirement benefit plans, and future changes in tax laws. In addition, we are regularly under audit or examination by tax authorities, including foreign tax authorities. The final determination of tax audits and any related litigation could similarly result in unanticipated increases in our tax expense and affect profitability and cash flows. Actual financial results could differ from our judgments and estimates. See “Critical Accounting Policies” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for a complete discussion of our significant accounting policies and use of estimates. ITEM 1B.

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ITEM 1A. Risk Factors An investment in our common stock or debt securities involves risks and uncertainties. We seek to identify, manage and mitigate risks to our business, but risk and uncertainty cannot be eliminated or necessarily predicted. The outcome of one or more of these risks could have a material effect on our operating results, financial position, or cash flows. You should carefully consider the following factors, in addition to the other information contained in this Annual Report on Form 10-K, before deciding to purchase our common stock or debt securities. We depend heavily on contracts with the U.S. Government for a substantial portion of our business. We derived 70% of our total net sales from the U.S. Government in 2018, including 60% from the Department of Defense (DoD). We expect to continue to derive most of our sales from work performed under U.S. Government contracts. Those contracts are conditioned upon the continuing availability of Congressional appropriations. Congress usually appropriates funds on a fiscal year (FY) basis even though contract performance may extend over many years. Consequently, contracts are often partially funded initially and additional funds are committed only as Congress makes further appropriations. If we incur costs in excess of funds obligated on a contract, we may be at risk for reimbursement of those costs unless and until additional funds are obligated to the contract. As discussed within “Industry Considerations-U.S. Government Funding” in Management’s Discussion and Analysis of Financial Condition and Results of Operations, on January 25, 2019 Congress passed and the President signed legislation that fully funds the U.S. Government through February 15, 2019, ending a partial government shutdown which did not include our largest customer, the DoD, but did include other customers such as NASA. The underlying budget impasse remains, and it is possible that there will be a further partial shutdown or shutdowns. As noted above, while the corporation’s largest customer, the DoD, is funded through the end of the government FY 2019 and thus would not be affected by another shutdown, limiting the direct impact of any future shutdown or shutdowns on Lockheed Martin, other customers, such as NASA, are not. In the event of future shutdowns, we may continue to work on unfunded contracts to seek to maintain their projected cost and schedule profiles which, although we would anticipate being paid when the shutdown ends, would put us at risk of nonpayment. Further there may be indirect impacts such as the potential diversion of funds from the DoD and the fact that the Departments of State and Commerce cease to timely process export licenses. While in the recent shutdown there were procedures in place to process on an emergency basis licenses involving direct support to the military, humanitarian aid, or other similar emergencies, there was a growing backlog of non-emergency applications. We anticipate that this will occur again in any future shutdown. While the impact on Lockheed Martin of the recent shutdown was not material, were a future shutdown to occur and continue for an extended period, this might not be the case. In addition, the President has not yet submitted a budget proposal for FY 2020 to Congress. If an annual appropriations bill is not enacted for FY 2020 or beyond, the U.S. Government may operate under a continuing resolution, restricting new contract or program starts and additional government shutdowns, which might involve all government agencies, could arise. In addition, continued budget uncertainty and the risk of future sequestration cuts remain unless the Budget Control Act is repealed or significantly modified. The is our largest program and represented 27% of our total net sales in 2018 and is expected to represent a higher percentage of our sales in future years. A decision to cut spending or reduce planned orders would have an adverse impact on our business and results of operations. Given the size and complexity of the program, we anticipate that there will be continual reviews related to aircraft performance, program schedule, cost, and requirements as part of the DoD, Congressional, and international partners’ oversight and budgeting processes. Current program challenges include, but are not limited to, supplier and partner performance (including the potential that a decision by the U.S. Government not to allow deliveries of aircraft to Turkey could disrupt the substantial supplier activity in our Turkish supply chain), software development, receiving funding for production contracts on a timely basis, executing future flight tests and findings resulting from testing and operating the aircraft, level of cost associated with life-cycle operations and sustainment and warranties and continuing to reduce the unit cost of producing aircraft and achieve cost targets. Based upon our diverse range of defense, homeland security and information technology products and services, generally we believe that this makes it less likely that cuts in any specific contract or program will have a long-term effect on our business. However, termination of multiple or large programs or contracts could adversely affect our business and future financial performance. Potential changes in funding priorities may afford new or additional opportunities for our businesses in terms of existing, follow-on or replacement programs. While we would expect to compete and be well positioned as the incumbent on existing programs, we may not be successful or the replacement programs may be funded at lower levels. We are subject to a number of procurement laws and regulations. Our business and reputation could be adversely affected if we fail to comply with these laws. We must comply with and are affected by laws and regulations relating to the award, administration and performance of U.S. Government contracts. Government contract laws and regulations affect how we do business with our customers and impose certain risks and costs on our business. A violation of specific laws and regulations, by us, our employees, others working on our behalf, a supplier or a venture partner, could harm our reputation and result in the imposition of fines and penalties, the termination of our contracts, suspension or debarment from bidding on or being awarded contracts, loss of our ability to export products or services and civil or criminal investigations or proceedings. In some instances, these laws and regulations impose terms or rights that are different from those typically found in commercial transactions. For example, the U.S. Government may terminate any of our government contracts and subcontracts either at its convenience or for default based on our performance. Upon termination for convenience of a fixed-price type contract, typically we are entitled to receive the purchase price for delivered items, reimbursement for allowable costs for work-in-process and an allowance for profit on the contract or adjustment for loss if completion of performance would have resulted in a loss. Upon termination for convenience of a cost-reimbursable contract, we normally are entitled to reimbursement of allowable costs plus a portion of the fee where allowable costs include our cost to terminate agreements with our suppliers and subcontractors. The amount of the fee recovered, if any, is related to the portion of the work accomplished prior to termination and is determined by negotiation. We attempt to ensure that adequate funds are available by notifying the customer when its estimated costs, including those associated with a possible termination for convenience, approach levels specified as being allotted to its programs. As funds are typically appropriated on a fiscal year basis and as the costs of a termination for convenience may exceed the costs of continuing a program in a given fiscal year, occasionally programs do not have sufficient funds appropriated to cover the termination costs if the government were to terminate them for convenience. Under such circumstances, the U.S. Government could assert that it is not required to appropriate additional funding. A termination arising out of our default may expose us to liability and have a material adverse effect on our ability to compete for future contracts and orders. In addition, on those contracts for which we are teamed with others and are not the prime contractor, the U.S. Government could terminate a prime contract under which we are a subcontractor, notwithstanding the quality of our services as a subcontractor. In the case of termination for default, the U.S. Government could make claims to reduce the contract value or recover its procurement costs and could assess other special penalties. However, under such circumstances we have rights and remedial actions under laws and the Federal Acquisition Regulation (FAR). In addition, certain of our U.S. Government contracts span one or more base years and multiple option years. The U.S. Government generally has the right not to exercise option periods and may not exercise an option period for various reasons. However, the U.S. Government may exercise option periods, even for contracts for which it is expected that our costs may exceed the contract price or ceiling. U.S. Government agencies, including the Defense Contract Audit Agency, the Defense Contract Management Agency and various agency Inspectors General, routinely audit and investigate government contractors. These agencies review a contractor’s performance under its contracts, its cost structure, its business systems and compliance with applicable laws, regulations and standards. The U.S. Government has the ability to decrease or withhold certain payments when it deems systems subject to its review to be inadequate. Additionally, any costs found to be misclassified may be subject to repayment. We have unaudited and/or unsettled incurred cost claims related to past years, which places risk on our ability to issue final billings on contracts for which authorized and appropriated funds may be expiring. If an audit or investigation uncovers improper or illegal activities, we may be subject to civil or criminal penalties and administrative sanctions, including reductions of the value of contracts, contract modifications or terminations, forfeiture of profits, suspension of payments, penalties, fines and suspension, or prohibition from doing business with the U.S. Government. In addition, we could suffer serious reputational harm if allegations of impropriety were made against us. Similar government oversight exists in most other countries where we conduct business. Our profitability and cash flow may vary based on the mix of our contracts and programs, our performance, our ability to control costs and evolving U.S. Government procurement policies. Our profitability and cash flow may vary materially depending on the types of government contracts undertaken, the nature of products produced or services performed under those contracts, the costs incurred in performing the work, the achievement of other performance objectives and the stage of performance at which the right to receive fees is determined, particularly under award and incentive-fee contracts. Our backlog includes a variety of contract types and represents the sales we expect to recognize for our products and services in the future. Contract types primarily include fixed-price and cost-reimbursable contracts. Under fixed-price contracts, we agree to perform the specified work for a pre-determined price. To the extent our actual costs vary from the estimates upon which the price was negotiated, we will generate more or less profit or could incur a loss. Some fixed-price contracts have a performance-based component under which we may earn incentive payments or incur financial penalties based on our performance. Cost-reimbursable contracts provide for the payment of allowable costs incurred during performance of the contract plus a fee up to a ceiling based on the amount that has been funded. Typically, we enter into three types of cost-reimbursable contracts: cost-plus-award-fee, cost-plus-incentive-fee, and cost-plus-fixed-fee. Cost-plus-award-fee contracts provide for an award fee that varies within specified limits based on the customer’s assessment of our performance against a predetermined set of criteria, such as targets based on cost, quality, technical and schedule criteria. Cost-plus-incentive-fee contracts provide for reimbursement of costs plus a fee, which is adjusted by a formula based on the relationship of total allowable costs to total target costs (i.e., incentive based on cost) or reimbursement of costs plus an incentive to exceed stated performance targets (i.e., incentive based on performance). The fixed-fee in a cost-plus-fixed-fee contract is negotiated at the inception of the contract and that fixed-fee does not vary with actual costs. Contracts for development programs with complex design and technical challenges are typically cost-reimbursable. In these cases, the associated financial risks primarily relate to a reduction in fees and the program could be canceled if cost, schedule or technical performance issues arise. Other contracts in backlog are for the transition from development to production (e.g., Low Rate Initial Production (LRIP) contracts), which includes the challenge of starting and stabilizing a manufacturing production and test line while the final design is being validated. These generally are cost-reimbursable or fixed-price incentive-fee contracts. Generally, if our costs exceed the contract target cost or are not allowable under the applicable regulations, we may not be able to obtain reimbursement for all costs and may have our fees reduced or eliminated. There are also contracts for production, as well as operations and maintenance of the delivered products, that have the challenge of achieving a stable production and delivery rate, while maintaining operability of the product after delivery. These contracts are mainly fixed-price. The failure to perform to customer expectations and contract requirements may result in reduced fees or losses and affect our financial performance in that period. Under each type of contract, if we are unable to control costs, our operating results could be adversely affected, particularly if we are unable to justify an increase in contract value to our customers. Cost overruns or the failure to perform on existing programs also may adversely affect our ability to retain existing programs and win future contract awards. The U.S. Government could implement policies that could negatively impact our profitability. Changes in procurement policy favoring more incentive-based fee arrangements, different award fee criteria or government contract negotiation offers based upon the customer’s view of what our costs should be (as compared to our actual costs) may affect the predictability of our profit rates. Our customers also may pursue non-traditional contract provisions in negotiation of contracts. In some circumstances, the U.S. Government is proposing positions that are inconsistent with the FAR and existing practice. The DoD is currently seeking the views of experts and interested parties within the U.S. Government and the private sector regarding revising policies and procedures for contract financing, performance incentives, and associated regulations for DoD contracts and we have no assurance regarding what changes will be proposed, if any, and their impact on our working capital and cash flow. Earlier changes proposed by the DoD and later withdrawn would have had a negative impact on the timing of our cash flows. Additionally, the U.S. Government is taking increasingly aggressive positions under the FAR and Defense Federal Acquisition Regulation Supplement (DFARS) both as to what intellectual property they believe government use rights apply and to acquire broad license rights. If the U.S. Government is successful in these efforts, this could affect our ability to compete and to obtain access to and use certain supplier intellectual property. Increased competition and bid protests in a budget-constrained environment may make it more difficult to maintain our financial performance and customer relationships. A substantial portion of our business is awarded through competitive bidding. The U.S. Government increasingly has relied upon competitive contract award types, including indefinite-delivery, indefinite-quantity and other multi-award contracts, which have the potential to create pricing pressure and increase our cost by requiring that we submit multiple bids and proposals. Multi-award contracts require that we make sustained efforts to obtain task orders under the contract. Additionally, recent competitive bids have not contained cost realism evaluation criteria leading to our competitors taking aggressive pricing positions. The competitive bidding process entails substantial costs and managerial time to prepare bids and proposals for contracts that may not be awarded to us or may be split among competitors. Additionally, the U.S. Government may fail to award us large competitive contracts in an effort to maintain a broader industrial base. Following award, we may encounter significant expenses, delays, contract modifications or bid protests from unsuccessful bidders on new program awards. Unsuccessful bidders may protest in the hope of being awarded a subcontract for a portion of the work in return for withdrawing the protest. Bid protests could result in significant expenses to us, contract modifications or even loss of the contract award. Even where a bid protest does not result in the loss of a contract award, the resolution can extend the time until the contract activity can begin and, as a result, delay our recognizing sales. We also may not be successful in our efforts to protest or challenge any bids for contracts that were not awarded to us and we could incur significant time and expense in such efforts. We are experiencing increased competition while, at the same time, many of our customers are facing budget pressures, trying to do more with less by cutting costs, identifying more affordable solutions, performing certain work internally rather than hiring a contractor, and reducing product development cycles. Recent acquisitions in our industry, particularly vertical integration by tier-1 prime contractors, could also result in increased competition. Therefore, it is critical we maintain strong customer relationships and seek to understand the priorities of their requirements in this price competitive environment. In international sales, we face substantial competition from both U.S. manufacturers and international manufacturers whose governments sometime provide research and development assistance, marketing subsidies and other assistance for their products. Additionally, our competitors are also focusing on increasing their international sales. To remain competitive, we consistently must maintain strong customer relationships and provide superior performance, advanced technology solutions and service at an affordable cost and with the agility that our customers require to satisfy their mission objectives. We are the prime contractor on most of our contracts and if our subcontractors, suppliers or teaming agreement or venture partners fail to perform their obligations, our performance and our ability to win future business could be harmed. For most of our contracts we rely on other companies to provide materials, major components and products, and to perform a portion of the services that we provide to our customers. Such arrangements may involve subcontracts, teaming arrangements, ventures or supply agreements with other companies upon which we rely (contracting parties). There is a risk that the contracting party does not perform and we may have disputes with our contracting parties, including disputes regarding the quality and timeliness of work performed, the workshare provided to that party, customer concerns about the other party’s performance, our failure to extend existing task orders or issue new task orders, or our hiring the personnel of a subcontractor, teammate or venture partner or vice versa. In addition, changes in the economic environment, including defense budgets, trade sanctions and constraints on available financing, may adversely affect the financial stability of our contracting parties and their ability to meet their performance requirements or to provide needed supplies on a timely basis as might their inability to perform profitably in the current highly competitive and budget constrained environment. We could also be adversely affected by reputational issues experienced by our teammates that are outside of our control, which could adversely affect our ability to compete for contract awards. A failure, for whatever reason, by one or more of our contracting parties to provide the agreed-upon supplies or perform the agreed-upon services on a timely basis, according to specifications, or at all, may affect our ability to perform our obligations and require that we transition the work to other companies. Contracting party performance deficiencies may result in additional costs or delays in product deliveries and affect our operating results and could result in a customer terminating our contract for default or convenience. A default termination could expose us to liability and affect our ability to compete for future contracts and orders. Additionally, our efforts to increase the efficiency of our operations and improve the affordability of our products and services could negatively impact our ability to attract and retain suppliers. International sales may pose different risks. In 2018, 28% of our total net sales were from international customers. We have a strategy to continue to grow international sales, inclusive of sales of aircraft to our international partners and other countries. International sales are subject to numerous political and economic factors, regulatory requirements, significant competition, taxation, and other risks associated with doing business in foreign countries. Our exposure to such risks may further increase if our international sales grow as we anticipate. Our international business is conducted through foreign military sales (FMS) to international customers or by direct commercial sales (DCS) to such customers. In 2018, approximately 63% of our sales to international customers were FMS and about 37% were DCS. These transaction types differ as FMS transactions entail agreements between the U.S. Government and our international customers through which the U.S. Government purchases products or services from us on behalf of the foreign customer with our contract with the U.S. Government being subject to the FAR and the DFARS. In contrast, DCS transactions represent sales by us directly to international customers and are not subject to the FAR or the DFARS. All sales to international customers are subject to U.S. and foreign laws and regulations, including, without limitation, import-export control, technology transfer restrictions, investments, taxation, repatriation of earnings, exchange controls, the Foreign Corrupt Practices Act and other anti-corruption laws and regulations, and the anti-boycott provisions of the U.S. Export Administration Act. While we have stringent policies in place to comply with such laws and regulations, failure by us, our employees or others working on our behalf to comply with these laws and regulations could result in administrative, civil, or criminal liabilities, including suspension, debarment from bidding for or performing government contracts, or suspension of our export privileges, which could have a material adverse effect on us. We frequently team with international subcontractors and suppliers who are also exposed to similar risks. While international sales, whether contracted as FMS or DCS, present risks that are different and potentially greater than those encountered in our U.S. business, DCS with international customers may impose even greater risks. DCS transactions involve direct commercial relationships with parties with whom we have less familiarity and where there may be significant cultural differences. Additionally, international procurement rules and regulations, contract laws and regulations, and contractual terms differ from those in the U.S. and are less familiar to us and may treat as criminal matters issues, which in the U.S. would be civil. International regulations may be interpreted by foreign courts less bound by precedent and with more discretion; these interpretations frequently have terms less favorable to us than the FAR. Export and import and currency risk also may be increased for DCS with international customers. While these risks are potentially greater than those encountered in our U.S. business, we seek to price our products and services commensurate with the risk profile on DCS with international customers. Our international business is highly sensitive to changes in regulations (including tariffs, sanctions, embargoes, export and import controls and other trade restrictions), political environments or security risks that may affect our ability to conduct business outside of the U.S., including those regarding investment, procurement, taxation and repatriation of earnings. We continue to evaluate the potential effect of the United Kingdom’s (UK) planned departure from the European Union (EU) (commonly referred to as Brexit) on our business operations and financial results, including the impacts if the UK fails to reach an agreement with the EU on Brexit by the March 29, 2019 deadline. We anticipate that the most probable near-term effects are likely to reflect the pressure Brexit is placing on the UK government, which may influence the government’s ability to make decisions on large complex programs of the type we perform. Brexit may also have adverse tax effects on movement of products or sustainment activities between the UK and EU. Additionally, Brexit may impact the value of the pound sterling. If the pound sterling were to remain depressed against the U.S. dollar, this could negatively impact the ability of the UK government to afford our products. Currently, we do not anticipate that Brexit will have a material impact on our operations or our financial results. While we have operations in the UK, these operations have little activity between the UK and the EU (e.g., sales, supply chain, or reliance on personnel). Additionally, our practice is to substantially hedge all of our currency exposure. Therefore, we do not have material currency exposure to the pound sterling or the euro. Additionally, Congress may act to prevent or impose conditions upon the sale or delivery of our products, such as aircraft to Turkey, and discussions in Congress may result in sanctions on the Kingdom of Saudi Arabia. Our international business also may be impacted by changes in foreign national priorities, foreign government budgets, global economic conditions, and fluctuations in foreign currency exchange rates. Sales of military products are also affected by defense budgets and U.S. foreign policy, including trade restrictions, and there could be significant delays or other issues in reaching definitive agreements for announced programs and international customer priorities could change. Additionally, the timing of orders from our international customers can be less predictable than for our U.S. customers and may lead to fluctuations in the amount reported each year for our international sales. In conjunction with defense procurements, some international customers require contractors to comply with industrial cooperation regulations, including entering into industrial cooperation agreements, sometimes referred to as offset agreements. Recently, certain customers have increased their demands for greater offset commitment levels and higher-value content, including the transfer of technologies and local production and economic development. Expectations as to offset commitments may exceed existing local technical capability. Offset agreements may require in-country purchases, technology transfers, local manufacturing support, investments in foreign joint ventures and financial support projects as an incentive or as a condition to a contract award. In some countries, these offset agreements may require the establishment of a venture with a local company, which must control the venture. The costs to satisfy our offset obligations are included in the estimates of our total costs to complete the contract and may impact our profitability and cash flows. The ability to recover investments that we make is generally dependent upon the successful operation of ventures that we do not control and may involve products and services that are dissimilar to our business activities. In these and other situations, we could be liable for violations of law for actions taken by these entities such as laws related to anti-corruption, import and export, taxation, and anti-boycott restrictions. Offset agreements generally extend over several years and may provide for penalties in the event we fail to perform in accordance with the offset requirements which are typically subjective and can be outside our control. Our efforts to minimize the likelihood and impact of adverse cybersecurity incidents and to protect data and intellectual property may not be successful and our business could be negatively affected by cyber or other security threats or other disruptions. We routinely experience various cybersecurity threats, threats to our information technology infrastructure, unauthorized attempts to gain access to our company sensitive information, and denial-of-service attacks as do our customers, suppliers, subcontractors and venture partners. We have a Computer Incident Response Team (CIRT) which has among its responsibilities defending against such attacks. Additionally, we conduct regular periodic training of our employees as to the protection of sensitive information which includes training intended to prevent the success of “phishing” attacks. We experience similar security threats at customer sites that we operate and manage. The threats we face vary from attacks common to most industries to more advanced and persistent, highly organized adversaries, including nation states, which target us and other defense contractors because we protect national security information. If we are unable to protect sensitive information, including complying with evolving data privacy regulations, our customers or governmental authorities could question the adequacy of our threat mitigation and detection processes and procedures, and depending on the severity of the incident, our customers’ data, our employees’ data, our intellectual property, and other third party data (such as teammates, venture partners, subcontractors, suppliers and vendors) could be compromised. As a consequence of their persistence, sophistication and volume, we may not be successful in defending against all such attacks. Due to the evolving nature of these security threats and the national security aspects of much of the data we protect, the impact of any future incident cannot be predicted. In addition to cyber threats, we experience threats to the security of our facilities and employees and threats from terrorist acts as do our customers, suppliers, subcontractors, venture partners and entities we acquire with whom we typically work cooperatively to seek to minimize the impact of cyber threats, other security threats or business disruptions. However, we must rely on the safeguards put in place by these entities, as well as other entities, which we do not control, who have access to our information, and may affect the security of our information. These entities have varying levels of cybersecurity expertise and safeguards, and their relationships with government contractors, such as Lockheed Martin, may increase the likelihood that they are targeted by the same cyber threats we face. We have approximately 16,000 direct suppliers and even more indirect suppliers with a wide variety of systems and cybersecurity capabilities and we may not be successful in preventing adversaries from exploiting possible weak links in our supply chain. We also must rely on this supply chain for detecting and reporting cyber incidents, which could affect our ability to report or respond to cybersecurity incidents in a timely manner. The costs related to cyber or other security threats or disruptions may not be fully insured or indemnified by other means. Additionally, some cyber technologies we develop under contract for our customers, particularly those related to homeland security, may raise potential liabilities related to intellectual property and civil liberties, including privacy concerns, which may not be fully insured or indemnified by other means or involve reputational risk. Our enterprise risk management program includes threat detection and cybersecurity mitigation plans, and our disclosure controls and procedures address cybersecurity and include elements intended to ensure that there is an analysis of potential disclosure obligations arising from security breaches. We also maintain compliance programs to address the potential applicability of restrictions on trading while in possession of material, nonpublic information generally and in connection with a cybersecurity breach. If we fail to manage acquisitions, divestitures, equity investments and other transactions successfully or if acquired entities or equity investments fail to perform as expected, our financial results, business and future prospects could be harmed. In pursuing our business strategy, we routinely conduct discussions, evaluate companies, and enter into agreements regarding possible acquisitions, divestitures, ventures and other investments. We seek to identify acquisition or investment opportunities that will expand or complement our existing products and services or customer base, at attractive valuations. We often compete with other companies for the same opportunities. To be successful, we must conduct due diligence to identify valuation issues and potential loss contingencies; negotiate transaction terms; complete and close complex transactions; integrate acquired companies and employees; and realize anticipated operating synergies efficiently and effectively. Acquisition, divestiture, venture and investment transactions often require substantial management resources and have the potential to divert our attention from our existing business. Unidentified or identified but un-indemnified pre-closing liabilities could affect our future financial results, particularly successor liability under procurement laws and regulations such as the False Claims Act or Truth in Negotiations Act, anti-corruption, tax, import-export and technology transfer laws which provide for civil and criminal penalties and the potential for debarment. We also may incur unanticipated costs or expenses, including post-closing asset impairment charges, expenses associated with eliminating duplicate facilities, employee retention, transaction-related or other litigation, and other liabilities. Any of the foregoing could adversely affect our business and results of operations. Ventures and other noncontrolling investments operate under shared control with other parties. Depending on our rights and percentage of ownership, we may consolidate the financial results of such entities or account for our interests under the equity method. Under the equity method of accounting for nonconsolidated ventures and investments, we recognize our share of the operating profit or loss of these ventures in our results of operations. Our operating results may be affected by the performance of businesses over which we do not exercise control, which includes the inability to prevent strategic decisions that may adversely affect our business, financial condition and results of operations. As a result, we may not be successful in achieving the growth or other intended benefits of strategic investments. Our joint ventures face many of the same risks and uncertainties as we do. The most significant impact of our equity investments is in our Space business segment where approximately 20% of its 2018 operating profit was derived from its share of earnings from equity method investees, particularly that in United Launch Alliance (ULA). During 2018, we recognized a non-cash asset impairment charge of $110 million related to our equity method investee, Advanced Military Maintenance, Repair and Overhaul Center LLC (AMMROC). We are continuing to monitor this investment, in light of ongoing performance, business base and economic issues and we may have to record our portion of additional charges, or an impairment of our investment, or both, should the carrying value of our investment exceed its fair value. See “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for additional information. Additionally, through our Lockheed Martin Ventures Fund, we make investments in companies (both within the U.S. and in other countries) that we believe are developing disruptive technologies applicable to our core businesses and new initiatives important to Lockheed Martin. These investments may be in the forms of common or preferred stock, convertible debt securities or investments in funds. Typically, we hold a non-controlling interest and, therefore, are unable to influence strategic decisions by these companies and may have limited visibility into their activities, which may result in our not realizing the intended benefits of the investments. We have also begun investing in funds we believe invest in such companies. We have less influence and visibility as a non-controlling investor in a fund. There can be no assurance that we will continue to increase our dividend or to repurchase shares of our common stock at current levels. The payment of cash dividends and share repurchases is subject to limitations under applicable laws and the discretion of our Board of Directors and is determined after considering current conditions, including earnings, other operating results and capital requirements. Our payment of dividends and share repurchases could vary from historical practices or our stated expectations. Decreases in asset values or increases in liabilities, including liabilities associated with benefit plans and assets and liabilities associated with taxes, can reduce net earnings and stockholders’ equity. A deficit in stockholders’ equity could limit our ability to pay dividends and make share repurchases under Maryland state law in the future. In addition, the timing and amount of share repurchases under board approved share repurchase plans is within the discretion of management and will depend on many factors, including results of operations, capital requirements and applicable law. Our business involves significant risks and uncertainties that may not be covered by indemnity or insurance. A significant portion of our business relates to designing, developing and manufacturing advanced defense and technology products and systems. New technologies may be untested or unproven. Failure of some of these products and services could result in extensive loss of life or property damage. Accordingly, we may incur liabilities that are unique to our products and services. In some but not all circumstances, we may be entitled to certain legal protections or indemnifications from our customers, either through U.S. Government indemnifications under Public Law 85-804 or the Price-Anderson Act, qualification of our products and services by the Department of Homeland Security under the SAFETY Act provisions of the Homeland Security Act of 2002, contractual provisions or otherwise. We endeavor to obtain insurance coverage from established insurance carriers to cover these risks and liabilities. The amount of insurance coverage that we maintain may not be adequate to cover all claims or liabilities. Existing coverage may be canceled while we remain exposed to the risk and it is not possible to obtain insurance to protect against all operational risks, natural hazards and liabilities. For example, we are limited in the amount of insurance we can obtain to cover certain natural hazards such as earthquakes, fires or extreme weather conditions. We have significant operations in geographic areas prone to these risks, such as in California, Florida and Texas. Even if insurance coverage is available, we may not be able to obtain it at a price or on terms acceptable to us. Additionally, disputes with insurance carriers over coverage terms or the insolvency of one or more of our insurance carriers may significantly affect the amount or timing of our cash flows. Substantial costs resulting from an accident; failure of or defect in our products or services; natural catastrophe or other incident; or liability arising from our products and services in excess of any legal protection, indemnity, and our insurance coverage (or for which indemnity or insurance is not available or not obtained) could adversely impact our financial condition, cash flows, or operating results. Any accident, failure of, or defect in our products or services, even if fully indemnified or insured, could negatively affect our reputation among our customers and the public and make it more difficult for us to compete effectively. It also could affect the cost and availability of adequate insurance in the future. Pension funding and costs are dependent on several economic assumptions which if changed may cause our future earnings and cash flow to fluctuate significantly as well as affect the affordability of our products and services. Many of our employees are covered by defined benefit pension plans, retiree medical and life insurance plans, and other postemployment plans (collectively, postretirement benefit plans). The impact of these plans on our earnings may be volatile in that the amount of expense we record for our postretirement benefit plans may materially change from year to year because the calculations are sensitive to changes in several key economic assumptions including interest rates and rates of return on plan assets, other actuarial assumptions including participant longevity (also known as mortality) and employee turnover, as well as the timing of cash funding. Changes in these factors, including actual returns on plan assets, may also affect our plan funding, cash flow and stockholders’ equity. In addition, the funding of our plans and recovery of costs on our contracts, as described below, may also be subject to changes caused by legislative or regulatory actions. With regard to cash flow, we make substantial cash contributions to our plans as required by the Employee Retirement Income Security Act of 1974 (ERISA), as amended by the Pension Protection Act of 2006 (PPA). We generally are able to recover these contributions related to our plans as allowable costs on our U.S. Government contracts, including FMS. During 2017, the revision to U.S. Government Cost Accounting Standards (CAS) rules to harmonize the measurement and period assignment of the pension cost allocable to government contracts with the PPA was fully transitioned. However, there is still a lag between the time when we contribute cash to our plans under pension funding rules and when we recover pension costs under CAS. For more information on how these factors could impact earnings, financial position, cash flow and stockholders’ equity, see “Critical Accounting Policies - Postretirement Benefit Plans” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 11 - Postretirement Benefit Plans” included in our Notes to Consolidated Financial Statements. Environmental costs could affect our future earnings as well as the affordability of our products and services. Our operations are subject to and affected by a variety of federal, state, local and foreign environmental protection laws and regulations. We are involved in environmental remediation at some of our facilities, some of our former facilities, and at third-party-owned sites where we have been designated a potentially responsible party. In addition, we could be affected by future regulations imposed or claims asserted in response to concerns over climate change, other aspects of the environment or natural resources. We have an ongoing, comprehensive sustainability program to reduce the effects of our operations on the environment. We manage and have managed various U.S. Government-owned facilities on behalf of the U.S. Government. At such facilities, environmental compliance and remediation costs historically have been the responsibility of the U.S. Government. We have relied, and continue to rely with respect to past practices, upon U.S. Government funding to pay such costs, notwithstanding efforts by some U.S. Government representatives to limit this responsibility. Although the U.S. Government remains responsible for capital and operating costs associated with environmental compliance, responsibility for fines and penalties associated with environmental noncompliance typically is borne by either the U.S. Government or the contractor, depending on the contract and the relevant facts. Some environmental laws include criminal provisions. An environmental law conviction could affect our ability to be awarded future or perform under existing U.S. Government contracts. We have incurred and will continue to incur liabilities under various federal, state, local and foreign statutes for environmental protection and remediation. The extent of our financial exposure cannot in all cases be reasonably estimated at this time. Among the variables management must assess in evaluating costs associated with these cases and remediation sites generally are the status of site assessment, extent of the contamination, impacts on natural resources, changing cost estimates, evolution of technologies used to remediate the site, continually evolving environmental standards and cost allowability issues, including varying efforts by the U.S. Government to limit allowability of our costs in resolving liability at third party-owned sites. For information regarding these matters, including current estimates of the amounts that we believe are required for environmental remediation to the extent probable and estimable, see “Critical Accounting Policies - Environmental Matters” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 14 - Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements. We are involved in a number of legal proceedings. We cannot predict the outcome of litigation and other contingencies with certainty. Our business may be adversely affected by the outcome of legal proceedings and other contingencies that cannot be predicted with certainty. As required by GAAP, we estimate loss contingencies and establish reserves based on our assessment of contingencies where liability is deemed probable and reasonably estimable in light of the facts and circumstances known to us at a particular point in time. Subsequent developments in legal proceedings may affect our assessment and estimates of the loss contingency recorded as a liability or as a reserve against assets in our financial statements. For a description of our current legal proceedings, see Item 3 - Legal Proceedings along with “Note 14 - Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements. Our success depends, in part, on our ability to develop new products and technologies, efficiently produce existing products and maintain a qualified workforce. Many of the products and services we provide are highly engineered and involve sophisticated technologies with related complex manufacturing and system integration processes. Our customers’ requirements change and evolve regularly. Accordingly, our future performance depends, in part, on our ability to adapt to changing customer needs rapidly, identify emerging technological trends, develop and manufacture innovative products and services and bring those offerings to market quickly at cost-effective prices. Due to the complex nature of the products and services we offer, we may experience technical difficulties during the development of new products or technologies. These technical difficulties could result in delays and higher costs, which may negatively impact our financial results, until such products or technologies are fully developed. See “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for further details about losses incurred on certain development programs. Additionally, there can be no assurance that our developmental projects will be successful or meet the needs of our customer. Additionally, our competitors may develop new technology, or offerings, or more efficient ways to produce existing products that could cause our existing offerings to become obsolete. If we fail in our development projects or if our new products or technologies fail to achieve customer acceptance, our ability to procure new contracts could be unsuccessful and this could negatively impact our financial results. Due to the specialized nature of our business, our future performance is highly dependent upon our ability to maintain a workforce with the requisite skills in multiple areas including: engineering, science, manufacturing, information technology, cybersecurity, business development and strategy and management. Our operating performance is also dependent upon personnel who hold security clearances and receive substantial training in order to work on certain programs or tasks. Additionally, as we expand our operations internationally, it is increasingly important to hire and retain personnel with relevant experience in local laws, regulations, customs, traditions and business practices. We face a number of challenges that may affect personnel retention such as our endeavors to increase the efficiency of our operations and improve the affordability of our products and services such as workforce reductions and consolidating and relocating certain operations. Additionally, a substantial portion of our workforce (including personnel in leadership positions) are retirement-eligible or nearing retirement. We previously amended certain of our defined benefit pension plans for non-union employees to freeze future retirement benefits. The freeze, which will be completed January 1, 2020, may encourage retirement-eligible personnel (generally age 55 or older) to choose to retire earlier than anticipated. To the extent that we lose experienced personnel, it is critical that we develop other employees, hire new qualified personnel, and successfully manage the transfer of critical knowledge. Competition for personnel is intense, and we may not be successful in hiring or retaining personnel with the requisite skills or clearances. We increasingly compete with commercial technology companies outside of the aerospace and defense industry for qualified technical, cyber and scientific positions as the number of qualified domestic engineers is decreasing and the number of cyber professionals is not keeping up with demand. To the extent that these companies grow at a faster rate or face fewer cost and product pricing constraints, they may be able to offer more attractive compensation and other benefits to candidates or our existing employees. To the extent that the demand for skilled personnel exceeds supply, we could experience higher labor, recruiting or training costs in order to attract and retain such employees; we could experience difficulty in performing our contracts if we were unable to do so. We also must manage leadership development and succession planning throughout our business. While we have processes in place for management transition and the transfer of knowledge, the loss of key personnel, coupled with an inability to adequately train other personnel, hire new personnel or transfer knowledge, could significantly impact our ability to perform under our contracts. Approximately 21% of our employees are covered by collective bargaining agreements with various unions. Historically, where employees are covered by collective bargaining agreements with various unions, we have been successful in negotiating renewals to expiring agreements without any material disruption of operating activities. However, this does not assure that we will be successful in our efforts to negotiate renewals of our existing collective bargaining agreements in the future. If we encounter difficulties with renegotiations or renewals of collective bargaining arrangements or are unsuccessful in those efforts, we could incur additional costs and experience work stoppages. Union actions at suppliers can also affect us. Any delays or work stoppages could adversely affect our ability to perform under our contracts, which could negatively impact our results of operations, cash flows, and financial condition. Our estimates and projections may prove to be inaccurate and certain of our assets may be at risk of future impairment. The accounting for some of our most significant activities is based on judgments and estimates, which are complex and subject to many variables. For example, accounting for sales using the percentage-of-completion method requires that we assess risks and make assumptions regarding schedule, cost, technical and performance issues for thousands of contracts, many of which are long-term in nature. Additionally, we initially allocate the purchase price of acquired businesses based on a preliminary assessment of the fair value of identifiable assets acquired and liabilities assumed. For significant acquisitions we may use a one-year measurement period to analyze and assess a number of factors used in establishing the asset and liability fair values as of the acquisition date and could result in adjustments to asset and liability balances. We have $10.8 billion of goodwill assets recorded on our consolidated balance sheet as of December 31, 2018 from previous acquisitions, which represents approximately 24% of our total assets. These goodwill assets are subject to annual impairment testing and more frequent testing upon the occurrence of certain events or significant changes in circumstances that indicate goodwill may be impaired. If we experience changes or factors arise that negatively affect the expected cash flows of a reporting unit, we may be required to write off all or a portion of the reporting unit’s related goodwill assets. The carrying value and fair value of our Sikorsky reporting unit are closely aligned. Therefore, any business deterioration, contract cancellations or terminations, or market pressures could cause our sales, earnings and cash flows to decline below current projections and could cause goodwill and intangible assets to be impaired. Additionally, Sikorsky may not perform as expected, or demand for its products may be adversely affected by global economic conditions, including oil and gas trends that are outside of our control. Future changes in U.S. or foreign tax laws, including those with retroactive effect, and audits by tax authorities could result in unanticipated increases in our tax expense and affect profitability and cash flows. The amount of net deferred tax assets will change periodically based on several factors, including the measurement of our postretirement benefit plan obligations, actual cash contributions to our postretirement benefit plans, and future changes in tax laws. Actual financial results could differ from our judgments and estimates. See “Critical Accounting Policies” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for a complete discussion of our significant accounting policies and use of estimates. ITEM 1B.

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ITEM 1A. Risk Factors An investment in our common stock or debt securities involves risks and uncertainties. We seek to identify, manage and mitigate risks to our business, but risk and uncertainty cannot be eliminated or necessarily predicted. The outcome of one or more of these risks could have a material effect on our operating results, financial position, or cash flows. You should carefully consider the following factors, in addition to the other information contained in this Annual Report on Form 10-K, before deciding to purchase our common stock or debt securities. We depend heavily on contracts with the U.S. Government, including contracts related to the program, for a substantial portion of our business. We derived 71% of our total net sales from the U.S. Government in 2019, including 61% from the DoD. We expect to continue to derive most of our sales from work performed under U.S. Government contracts. Those contracts are conditioned upon the continuing availability of Congressional appropriations. Congress usually appropriates funds on a fiscal year (FY) basis even though contract performance may extend over many years. Consequently, contracts are often partially funded initially and additional funds are committed only as Congress makes further appropriations. If we incur costs in excess of funds obligated on a contract, we may be at risk for reimbursement of those costs unless and until additional funds are obligated to the contract. The program, which consists of multiple development, production and sustainment contracts, is our largest program. It represented 27% of our total net sales in 2019 and is expected to represent a higher percentage of our sales in future years. A decision by the U.S. Government or other governments to cut spending on this program or reduce or delay planned orders would have an adverse impact on our business and results of operations. Given the size and complexity of the program, we anticipate that there will be continual reviews related to aircraft performance, program schedule, cost, and requirements as part of the DoD, Congressional, and international partners’ oversight and budgeting processes. Current program challenges include, but are not limited to, supplier and partner performance, software development, the availability and receipt of funding for production contracts on a timely basis, execution of future flight tests and findings resulting from testing and operating the aircraft, the level of cost associated with life-cycle operations and sustainment and warranties, continuing to reduce the unit production costs, and achieving cost targets. Budget uncertainty, the risk of future budget cuts, the potential for U.S. government shutdowns, the use of continuing resolutions, and the federal debt ceiling can adversely affect our industry and the funding for our programs. If a government shutdown were to occur and were to continue for an extended period of time, we could be at risk of program cancellations and other disruptions and nonpayment. If the U.S. Government operates under a continuing resolution, new contract and program starts are restricted and funding for our programs may be unavailable, reduced or delayed. The federal budget debate could also result in reductions in overall defense spending which could adversely impact our business. We believe our diverse range of defense, homeland security and information technology products and services, generally make it less likely that cuts in any specific contract or program will affect our business on a long-term basis. However, termination of multiple or large programs or contracts could adversely affect our business and future financial performance. Changes in funding priorities may afford new or additional opportunities for our businesses in terms of existing, follow-on or replacement programs, but could also reduce opportunities in existing programs and in planned programs where we intend to compete. While we would expect to compete and be well positioned as the incumbent on existing programs, we may not be successful or, even if successful, the replacement programs may be funded at lower levels. U.S. Government sanctions on Turkey and Turkey’s removal from the program could adversely impact our results of operations and cash flows. On July 17, 2019, the U.S. Government suspended Turkey’s participation in the program and initiated the process to formally remove Turkey from the program as a result of Turkey accepting delivery of the Russian S-400 air and missile defense system. To date, the Administration has not imposed sanctions on Turkish entities involved in the S-400 procurement, although sanctions under the Countering America’s Adversaries Through Sanctions Act (CAATSA) remain a risk. Additionally, sanctions could be imposed against Turkey as a result of future legislation, including the “Promoting American National Security and Preventing the Resurgence of ISIS Act of 2019” that was passed out of the Senate Foreign Relations Committee on December 11, 2019. The bill includes significant new sanction provisions targeted at Turkey that, if enacted, would directly affect Lockheed Martin programs in Turkey. Turkey could implement retaliatory sanctions if the bill moves forward in Congress in 2020.We are monitoring these developments and the potential impacts of any sanctions and other actions regarding Turkey on the program and on our other programs involving Turkey. Depending on the scope and applicability of any sanctions or other actions, the impact could be material to our operations, operating results, financial position or cash flows. Turkey is one of eight international partner countries on the program and previously committed to purchase up to 100 aircraft, of which six have completed production. Turkish suppliers also produce component parts for the program, many of which are single-sourced. To minimize the risks of disruption of our supply chain and ensure continuity of production, we have been working closely with the DoD and supporting activities to identify and engage alternate suppliers for the component parts produced by Turkish suppliers. We have made significant progress toward this end but due to the procedure to qualify new parts and suppliers, this collaborative process between DoD and Lockheed Martin is ongoing. We are in discussions with the U.S. Government with respect to the timeline for the transition of Turkish sources. While the transition timeline is an important first step, it is equally important that our replacement capacity is re-established so that production is not impacted. Efforts to date have significantly reduced our risk but final resolution on a limited number of remaining components could affect deliveries, including in 2020, and any accelerated work stoppage would impact cost. International sales of the are negotiated between the U.S. Government and international governments and the process to formally remove Turkey from the program is a government-to-government matter. We will continue to follow official U.S. Government guidance as it relates to delivery of aircraft to Turkey and the export and import of component parts from the Turkish supply chain. The full effects of potential U.S. Government sanctions on Turkey and Turkey’s removal from the program cannot be determined at this time. However, these actions could impact the timing of orders, disrupt the production of aircraft, delay delivery of aircraft, disrupt delivery of sustainment components produced in Turkey and impact funding on the program to include the result of any reprogramming of funds that may be necessary to mitigate the impact of alternate sources for component parts made in Turkey. While, in the case of the program, we expect that these costs ultimately would be recovered from the U.S. Government, the availability or timing of any recovery could adversely affect our cash flows and results of operations. We have other programs involving sales to Turkey or work with Turkish industry, including Sikorsky Black Hawk helicopter production that is dependent on sole-source components from Turkish suppliers and the Turkish Utility Helicopter Program, which is a program to produce helicopters for the Turkish Armed Forces, that could be adversely affected by the imposition of sanctions on Turkey, and potential reciprocal actions. Depending on the terms and interpretation of any sanctions, certain of these activities could be determined to be prohibited, which could result in restrictions on exports or imports, losses of future sales, reductions in backlog, return of advance payments, costs to develop alternate supply sources, restrictions on payments, force majeure events or contract terminations. Such activity also could result in claims from our suppliers, which may include both the amount established in any settlement agreements, the costs of evaluating supplier settlement proposals and the costs of negotiating settlement agreements. These effects could have a material impact on our operating results, financial position and cash flows. We are subject to a number of procurement laws and regulations, including the U.S. Government’s ability to terminate contracts for convenience. Our business and reputation could be adversely affected if we or those we do business with fail to comply with these laws. We must comply with and are affected by laws and regulations relating to the award, administration and performance of U.S. Government contracts. Government contract laws and regulations affect how we do business with our customers and impose certain risks and costs on our business. A violation of these laws and regulations by us, our employees, others working on our behalf, a supplier or a joint venture partner could harm our reputation and result in the imposition of fines and penalties, the termination of our contracts, suspension or debarment from bidding on or being awarded contracts, loss of our ability to export products or perform services and civil or criminal investigations or proceedings. In some instances, these laws and regulations impose terms or obligations that are different than those typically found in commercial transactions. For example, the U.S. Government may terminate any of our government contracts and subcontracts not only for default based on our performance but also at its convenience. Upon termination for convenience of a fixed-price type contract, typically we are entitled to receive the purchase price for delivered items, reimbursement for allowable costs for work-in-process and an allowance for profit on the contract or adjustment for loss if completion of performance would have resulted in a loss. Upon termination for convenience of a cost-reimbursable contract, we normally are entitled to reimbursement of allowable costs plus a portion of the fee where allowable costs include our cost to terminate agreements with our suppliers and subcontractors. The amount of the fee recovered, if any, is related to the portion of the work accomplished prior to termination and is determined by negotiation. We attempt to ensure that adequate funds are available by notifying the customer when its estimated costs, including those associated with a possible termination for convenience, approach levels specified as being allotted to its programs. As funds are typically appropriated on a fiscal year basis and as the costs of a termination for convenience may exceed the costs of continuing a program in a given fiscal year; however, programs occasionally do not have sufficient funds appropriated to cover the termination costs if the government were to terminate them for convenience. Under such circumstances, the U.S. Government could assert that it is not required to appropriate additional funding. A termination arising out of our default may expose us to liability and have a material adverse effect on our ability to compete for future contracts and orders. In addition, on those contracts for which we are teamed with others and are not the prime contractor, the U.S. Government could terminate a prime contract under which we are a subcontractor, notwithstanding the fact that our performance and the quality of the products or services we delivered were consistent with our contractual obligations as a subcontractor. In the case of termination for default, the U.S. Government could make claims to reduce the contract value or recover its procurement costs and could assess other special penalties. Under such circumstances we may have rights and there may be remedial actions available to us under applicable laws and the FAR. Additionally, our programs for the U.S. Government often operate for periods of time under UCAs, which means that we begin performing our obligations before the terms, specifications or price are finally agreed to between the parties. The U.S. Government has the ability to unilaterally definitize contracts, which, absent a successful appeal, obligates us to perform under terms and conditions imposed by the U.S. Government. The U.S. Government has unilaterally definitized contracts with us in the past, most notably the LRIP 9 contract in 2016, and may do so in the future. The U.S. Government’s power to unilaterally definitize a contract can affect our ability to negotiate mutually agreeable contract terms and, if a contract is unilaterally imposed upon us, it may negatively affect our expected profit and cash flows on a program or impose burdensome terms. Certain of our U.S. Government contracts span one or more base years and include multiple option years. The U.S. Government generally has the right not to exercise option periods and may not exercise an option period for various reasons. The U.S. Government also may decide to exercise option periods for contracts under which it is expected that our costs may exceed the contract price or ceiling, which could result in losses or unreimbursed costs. Evolving U.S. Government procurement policies and increased emphasis on cost over performance could adversely affect our business. The U.S. Government could implement procurement policies that negatively impact our profitability. Changes in procurement policy favoring more incentive-based fee arrangements, different award fee criteria or government contract negotiation offers based upon the customer’s view of what our costs should be (as compared to our actual costs) may affect the predictability of our profit rates or make it more difficult to compete on certain types of programs. Our customers also may pursue non-traditional contract provisions or contract type in negotiation of contracts. The U.S. Government’s preference for fixed-price contracting has resulted in what we believe to be the inappropriate application of fixed-priced contracting methods to development programs. By their nature, the technical challenges, costs and timing of development programs are difficult to estimate and the use of fixed-price instead of cost-reimbursable contracts for such programs increases the financial risk to the contractor. This increased risk may lead to losses on fixed price development programs or may cause us not to bid on future fixed-price development programs. From time to time, the U.S. Government also has proposed contract terms or taken positions that represent fundamental changes from historical practices or that we believe are inconsistent with the FAR. As recommended by a June 2019 U.S. Government Accountability Office (GAO) Report on contract financing, the DoD has stated that it will conduct a comprehensive assessment of the effect that DoD contract financing and profit policies have on the defense industry. We have no assurance regarding the full scope and recurrence of any study and what changes will be proposed, if any, and their impact on our working capital, cash flow, profit or results of operation. Earlier changes proposed by the DoD in 2018 and later withdrawn would have had a negative effect on the timing of our cash flows. We are routinely subject to audit by our customers on government contracts and the results of those audits could have an adverse effect on our business, reputation and results of operations. U.S. Government agencies, including the Defense Contract Audit Agency, the Defense Contract Management Agency and various agency Inspectors General, routinely audit and investigate government contractors. These agencies review a contractor’s performance under its contracts, its cost structure, its business systems and compliance with applicable laws, regulations and standards. The U.S. Government has the ability to decrease or withhold certain payments when it deems systems subject to its review to be inadequate. Additionally, any costs found to be misclassified may be subject to repayment and from time to time we have had substantial disagreements with government auditors regarding the allowability of costs incurred by us under government contracts, which further delays payments even if we are correct in our positions. We have unaudited or unsettled incurred cost claims related to past years, which limits our ability to issue final billings on contracts for which authorized and appropriated funds may be expiring or can result in substantial delays in final billings and our ability to close out a contract. If an audit or investigation uncovers improper or illegal activities, we may be subject to civil or criminal penalties and administrative sanctions, including reductions of the value of contracts, contract modifications or terminations, forfeiture of profits, suspension of payments, penalties, fines, suspension, or prohibition from doing business with the U.S. Government. In addition, we could suffer serious reputational harm if allegations of impropriety were made against us. Similar government oversight exists in most other countries where we conduct business. Our profitability and cash flow may vary based on the mix of our contracts and programs, our performance, and our ability to control costs. Our profitability and cash flow may vary materially depending on the types of government contracts undertaken, the nature of products produced or services performed under those contracts, the costs incurred in performing the work, the achievement of other performance objectives and the stage of performance at which the right to receive fees is determined, particularly under award and incentive-fee contracts. Failure to perform to customer expectations and contract requirements may result in reduced fees or losses and may adversely affect our financial performance. Our backlog includes a variety of contract types and represents the sales we expect to recognize for our products and services in the future. Contract types primarily include fixed-price and cost-reimbursable contracts. Under each type of contract, if we are unable to control costs, our operating results could be adversely affected, particularly if we are unable to justify an increase in contract value to our customers. Cost overruns or the failure to perform on existing programs also may adversely affect our ability to retain existing programs and win future contract awards. Under fixed-price contracts, we agree to perform specified work for a pre-determined price. To the extent our actual costs vary from the estimates upon which the price was negotiated, we will generate more or less profit or could incur a loss. Some fixed-price contracts have a performance-based component under which we may earn incentive payments or incur financial penalties based on our performance. Cost-reimbursable contracts provide for the payment of allowable costs incurred during performance of the contract plus a fee up to a ceiling based on the amount that has been funded. Typically, we enter into three types of cost-reimbursable contracts: cost-plus-award-fee, cost-plus-incentive-fee, and cost-plus-fixed-fee. Cost-plus-award-fee contracts provide for an award fee that varies within specified limits based on the customer’s assessment of our performance against a predetermined set of criteria, such as targets based on cost, quality, technical and schedule criteria. Cost-plus-incentive-fee contracts provide for reimbursement of costs plus a fee that is adjusted by a formula based on the relationship of total allowable costs to total target costs (i.e., incentive based on cost) or reimbursement of costs plus an incentive to exceed stated performance targets (i.e., incentive based on performance). The fixed-fee in a cost-plus-fixed-fee contract is negotiated at the inception of the contract and that fixed-fee does not vary with actual costs. Contracts for development programs with complex design and technical challenges are often cost-reimbursable. In these cases, the associated financial risks primarily relate to a reduction in fees and the program could be canceled if cost, schedule or technical performance issues arise. Other contracts included in our backlog are for the transition from development to production (e.g., LRIP contracts), which includes the challenge of starting and stabilizing a manufacturing production and test line while the final design is being validated and managing change in requirements or capabilities. These contracts frequently are cost-reimbursable or fixed-price incentive-fee contracts. Generally, if our costs exceed the contract target cost or are not allowable under the applicable regulations, we may not be able to obtain reimbursement for all costs and may have our fees reduced or eliminated. There are also contracts for production, as well as operations and maintenance of the delivered products, that have the challenge of achieving a stable production and delivery rate, while maintaining operability of the product after delivery. These contracts are mainly fixed-price. In addition, certain contracts, primarily those associated with our Space business segment, contain provisions that require us to forfeit fees, pay penalties, or provide replacement systems in the event of performance failure, which could negatively affect our earnings and cash flows. Increased competition and bid protests in a budget-constrained environment may make it more difficult to maintain our financial performance and customer relationships. A substantial portion of our business is awarded through competitive bidding. The U.S. Government increasingly has relied on competitive contract award types, including indefinite-delivery, indefinite-quantity and other multi-award contracts, which have the potential to create pricing pressure and to increase our costs by requiring us to submit multiple bids and proposals. Multi-award contracts require us to make sustained efforts to obtain task orders under the contract. Additionally, recent competitive bids have not contained cost-realism evaluation criteria which has led to competitors taking aggressive pricing positions. The competitive bidding process entails substantial costs and managerial time to prepare bids and proposals for contracts that may not be awarded to us or may be split among competitors. Additionally, the U.S. Government may fail to award us large competitive contracts in an effort to maintain a broader industrial base. Even if we are successful in obtaining an award, we may encounter bid protests from unsuccessful bidders on new program awards. Unsuccessful bidders may protest in the hope of being awarded a subcontract for a portion of the work in return for withdrawing the protest. Bid protests could result in significant expenses to us, contract modifications or even loss of the contract award. Even where a bid protest does not result in the loss of a contract award, the resolution can extend the time until contract activity can begin and, as a result, delay the recognition of sales. We also may not be successful in our efforts to protest or challenge any bids for contracts that were not awarded to us and we could incur significant time and expense in such efforts. We are experiencing increased competition while, at the same time, many of our customers are facing budget pressures, trying to do more with less by cutting costs, identifying more affordable solutions, performing certain work internally rather than hiring contractors, and reducing product development cycles. Recent acquisitions in our industry, particularly vertical integration by tier-1 prime contractors, could also result in increased competition or limit our access to certain suppliers. To remain competitive, we must maintain consistently strong customer relationships, seek to understand customer priorities and provide superior performance, advanced technology solutions and service at an affordable cost with the agility that our customers require to satisfy their mission objectives in an increasingly price competitive environment. We are the prime contractor on most of our contracts and if our subcontractors, suppliers or teaming agreement or joint venture partners fail to perform their obligations, our performance and our ability to win future business could be harmed. We rely on other companies to provide materials, major components and products, and to perform a portion of the services that are provided to our customers under the terms of most of our contracts. These arrangements may involve subcontracts, teaming arrangements, joint ventures or supply agreements with other companies upon which we rely (contracting parties). There is a risk that the contracting party does not perform at all or to our expectations or meet affordability targets and we may have disputes with our contracting parties, including disputes regarding the quality and timeliness of work performed, the workshare provided to that party, customer concerns about the other party’s performance, our failure to extend existing task orders or issue new task orders, or our hiring the personnel of a subcontractor, teammate or joint venture partner or vice versa. We could also be adversely affected by actions by or issues experienced by our contracting parties that are outside of our control, such as misconduct and reputational issues involving our contracting parties, which could subject us to liability or adversely affect our ability to compete for contract awards. Changes in the economic environment, including geopolitical events, defense budgets, trade sanctions and constraints on available financing, and the highly competitive and budget constrained environment in which we operate, may adversely affect the financial stability of our contracting parties or their ability to meet their performance requirements or to provide needed supplies or services on a timely basis. Some scarce raw materials required for our products are largely controlled by a single country and therefore can be adversely impacted by potential trade actions involving that country. Additionally, our efforts to increase the efficiency of our operations and improve the affordability of our products and services could negatively impact our ability to attract and retain suppliers. We must comply with specific procurement requirements which can limit the available suppliers and we do not have secondary suppliers for some supplies and the qualification of new or additional suppliers can under some circumstances take an extended period of time. A failure, for whatever reason, by one or more of our contracting parties to provide the agreed-upon supplies or perform the agreed-upon services on a timely basis, according to specifications, or at all, may affect our ability to perform our obligations and require that we transition the work to other companies. Contracting party performance deficiencies may result in additional costs or delays in product deliveries and affect our operating results and could result in a customer terminating our contract for default or convenience. A default termination could expose us to liability and affect our ability to compete for future contracts and orders. Our success depends, in part, on our ability to develop new technologies, products and services and efficiently produce and deliver existing products. Many of the products and services we provide are highly engineered and involve sophisticated technologies with related complex manufacturing and system integration processes. Our customers’ requirements change and evolve regularly. Accordingly, our future performance depends, in part, on our ability to adapt to changing customer needs rapidly, identify emerging technological trends, develop and manufacture innovative products and services efficiently and bring those offerings to market quickly at cost-effective prices. This includes efforts to implement emerging digital technologies and capabilities. Due to the complex nature of the products and services we offer, we may experience technical difficulties during the development of new products or technologies. These technical difficulties could result in delays and higher costs, which may negatively impact our financial results, and could divert resources from other projects, until such products or technologies are fully developed. See “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for further details about losses incurred on certain development programs. Additionally, there can be no assurance that our development projects will be successful or meet the needs of our customers. Our competitors may also develop new technology, or offerings, or more efficient ways to produce existing products that could cause our existing offerings to become obsolete or that could gain market acceptance before our own competitive offerings. If we fail in our development projects or if our new products or technologies fail to achieve customer acceptance, our ability to procure new contracts could be unsuccessful and this could negatively impact our financial results. We may be unable to benefit fully from or adequately protect our intellectual property rights or use third-party intellectual property, which could negatively affect our business. We routinely apply for and own a substantial number of U.S. and foreign patents and trademarks related to the products and services we provide. In addition to owning a large portfolio of patents and trademarks, we develop and own other intellectual property, including copyrights, trade secrets and research, development and engineering know-how, which contribute significantly to our business. We also license intellectual property to and from third parties. The FAR and DFARS provide that the U.S. government obtains certain rights in intellectual property, including patents, developed by us and our subcontractors and suppliers in performance of government contracts or with government funding. The U.S. government may use or authorize others, including competitors, to use such intellectual property. Non-U.S. governments may also have certain rights in patents and other intellectual property developed in performance of our contracts with these entities. The U.S. government is taking increasingly aggressive positions regarding the types of intellectual property to which government use rights apply and when it is appropriate for the government to insist on broad use rights. The DoD is also developing an overarching intellectual property acquisition policy that will require a greater focus and planning as to intellectual property rights for its programs, and we have no assurance as to the potential impacts of this policy or any associated regulatory changes on future acquisitions. The DoD’s efforts could affect our ability to protect and exploit our intellectual property and to leverage supplier intellectual property, for example, if we are unable to obtain necessary licenses from our suppliers to meet government requirements. Additionally, while we take measures to protect and enforce our intellectual property rights and to respect the intellectual property rights of others, our intellectual property and intellectual property licensed or obtained from third parties is subject to challenges (such as infringement and misappropriation claims) by third parties, which could adversely affect our ability to compete and perform on contracts. International sales may pose different political, economic, regulatory, competition and other risks. In 2019, 28% of our total net sales were from international customers. We have a strategy to continue to grow international sales, inclusive of sales of aircraft to our international partner countries and other countries. International sales are subject to numerous political and economic factors, regulatory requirements, significant competition, taxation, and other risks associated with doing business in foreign countries. Our exposure to such risks may further increase if our international sales grow as we anticipate. In international sales, we face substantial competition from both U.S. manufacturers and international manufacturers whose governments sometimes provide research and development assistance, marketing subsidies and other assistance for their products and services. Additionally, many of our competitors are also focusing on increasing international sales. Our international business is conducted through foreign military sales (FMS) contracted through the U.S. Government to international customers and by direct commercial sales (DCS) to such customers. In 2019, approximately 67% of our sales to international customers were FMS and about 33% were DCS. These transaction types differ as FMS transactions entail agreements between the U.S. Government and our international customers through which the U.S. Government purchases products or services from us on behalf of the foreign customer with our contract with the U.S. Government being subject to the FAR and the DFARS. In contrast, DCS transactions represent sales by us directly to international customers and are not subject to the FAR or the DFARS. All sales to international customers are subject to U.S. and foreign laws and regulations, including import-export control, technology transfer restrictions, investments, taxation, repatriation of earnings, exchange controls, the Foreign Corrupt Practices Act and other anti-corruption laws and regulations, and the anti-boycott provisions of the U.S. Export Administration Act. While we have extensive policies in place to comply with such laws and regulations, failure by us, our employees or others working on our behalf to comply with these laws and regulations could result in administrative, civil, or criminal liabilities, including suspension, debarment from bidding for or performing government contracts, or suspension of our export privileges, which could have a material adverse effect on us. We frequently team with international subcontractors and suppliers who also are exposed to similar risks. While international sales, whether contracted as FMS or DCS, present risks that are different and potentially greater than those encountered in our U.S. business; DCS with international customers may impose even greater risks. DCS transactions involve direct commercial relationships with parties with whom we have less familiarity and where there may be significant cultural differences. Additionally, international procurement and local country rules and regulations, contract laws, judicial systems, and contractual terms differ from those in the U.S. and are less familiar to us and may treat as criminal matters issues that would be considered civil matters in the U.S. International regulations may be interpreted by foreign courts less bound by precedent and with more discretion; these interpretations frequently have terms less favorable to us than the FAR. Export and import and currency risk also may be increased for DCS with international customers. While these risks are potentially greater than those encountered in our U.S. business, we seek to price our products and services commensurate with the risk profile on DCS with international customers. In conjunction with defense procurements, some international customers require contractors to comply with industrial cooperation regulations, including entering into industrial cooperation agreements, sometimes referred to as offset agreements. Recently, certain customers have increased their demands for offset commitment levels and higher-value content, including the transfer of technologies and local production and economic development. Expectations as to offset commitments may exceed existing local technical capability. Offset agreements may require in-country purchases, technology transfers, local manufacturing support, investments in foreign joint ventures and financial support projects as an incentive or as a condition to a contract award. In some countries, these offset agreements may require the establishment of a joint venture with a local company, which must control the joint venture. The costs to satisfy our offset obligations are included in the estimates of our total costs to complete the contract and may impact our profitability and cash flows. The ability to recover investments that we make is generally dependent upon the successful operation of joint ventures that we do not control and may involve products and services that are dissimilar to our business activities. In these and other situations, we could be liable for violations of law for actions taken by these entities such as laws related to anti-corruption, import and export, taxation and anti-boycott restrictions. Offset agreements generally extend over several years and may provide for penalties in the event we fail to perform in accordance with the offset requirements, which are typically subjective and can be outside of our control. Political issues and considerations, both in the U.S. and internationally, could have a significant effect on our business. Our international business is highly sensitive to changes in regulations (including tariffs, sanctions, embargoes, export and import controls and other trade restrictions), political environments or security risks that may affect our ability to conduct business outside of the U.S., including those regarding investment, procurement, taxation and repatriation of earnings. We continue to evaluate the potential effect of the United Kingdom’s (UK) departure from the European Union (EU) (commonly referred to as Brexit) on our business operations and financial results. We anticipate that the most probable near-term effects are likely to reflect the pressure Brexit is placing on the UK government, which may influence the government’s ability to make decisions on large complex programs of the type we perform. Brexit also may have adverse implications on the movement of products or sustainment activities between the UK and EU. Additionally, Brexit may impact the value of the pound sterling. If the pound sterling were to remain depressed against the U.S. dollar, this could negatively impact the ability of the UK government to afford our products and services. While we have operations in the UK and these operations have activity between the UK and the EU (e.g., sales, supply chain, or reliance on personnel), we currently do not anticipate that Brexit will have a material impact on our operations or our financial results. Additionally, our practice is to substantially hedge all of our currency exposure. Therefore, we do not have material currency exposure to the pound sterling or the euro. International sales also may be affected by actions taken by the U.S. Government in the exercise of foreign policy, Congressional oversight or the financing of particular programs. For example, Congress may act to prevent or impose conditions upon the sale or delivery of our products, such as delays in obtaining Congressional approvals for exports requiring Congressional notification to the Kingdom of Saudi Arabia and Turkey and the suspension of sales of aircraft to Turkey and potential sanctions. In addition, discussions in Congress may result in sanctions on the Kingdom of Saudi Arabia. Our international business also may be impacted by changes in foreign national priorities, foreign government budgets, global economic conditions, and fluctuations in foreign currency exchange rates. Sales of military products are also affected by defense budgets and U.S. foreign policy, including trade restrictions and disputes, and there could be significant delays or other issues in reaching definitive agreements for announced programs and international customer priorities could change. Additionally, the timing of orders from our international customers can be less predictable than for our U.S. customers and may lead to fluctuations in the amount reported each year for our international sales. Our efforts to minimize the likelihood and impact of adverse cybersecurity incidents and to protect data and intellectual property may not be successful and our business could be negatively affected by cyber or other security threats or other disruptions. We routinely experience various cybersecurity threats, threats to our information technology infrastructure, unauthorized attempts to gain access to our company, employee- and customer-sensitive information, insider threats and denial-of-service attacks as do our customers, suppliers, subcontractors and joint venture partners. We experience similar security threats at customer sites that we operate and manage. The threats we face vary from attacks common to most industries, to more advanced and persistent, highly organized adversaries, including nation states. These nation state actors target us and other defense contractors for several reasons, including because we protect national security information and develop advanced technology systems. If we are unable to protect sensitive information, including complying with evolving information security and data protection/privacy regulations, our customers or governmental authorities could question the adequacy of our threat mitigation and detection processes and procedures. Moreover, depending on the severity of an incident, our customers’ data, our employees’ data, our intellectual property (including trade secrets and research, development and engineering know-how), and other third-party data (such as teammates, joint venture partners, subcontractors, suppliers and vendors) could be compromised. Products and services we provide to customers also carry cybersecurity risks, including risks that they could be breached or fail to detect, prevent or combat attacks, which could result in losses to our customers and claims against us, and could harm our relationships with our customers. We take a variety of precautions to protect our systems and data, including a Computer Incident Response Team (CIRT) to defend against cyber attacks and regular periodic training of our employees on protection of sensitive information, including training intended to prevent the success of “phishing” attacks. However, as a consequence of the persistence, sophistication and volume of cyber attacks, we may not be successful in defending against all such attacks. We also have a corporate-wide counterintelligence and insider threat detection program to proactively identify external and internal threats, and mitigate those threats in a timely manner. Nevertheless, due to the evolving nature of these security threats and the national security aspects of much of the data we protect, the impact of any future incident cannot be predicted. In addition to cyber threats, we experience threats to the security of our facilities and employees and threats from terrorist acts. We also typically work cooperatively with our customers, suppliers, subcontractors, joint venture partners and entities we acquire, whom are subject to similar threats, to seek to minimize the impact of cyber threats, other security threats or business disruptions. However, we must rely on the safeguards put in place by these entities, and other entities, none of which we control, who have access to our information, and thus may affect the security of our information or the information we are obligated to protect. These entities have varying levels of cybersecurity expertise and safeguards, and their relationships with government contractors, including us, may increase the likelihood that they are targeted by the same cyber threats we face. We have thousands of direct suppliers and even more indirect suppliers with a wide variety of systems and cybersecurity capabilities and adversaries actively seek to exploit security and cybersecurity weaknesses in our supply chain. A breach in our multi-tiered supply chain could impact our data or customer deliverables. We also must rely on this supply chain for detecting and reporting cyber incidents, which could affect our ability to report or respond to cybersecurity incidents effectively or in a timely manner. The costs related to cyber or other security threats or disruptions may not be fully insured or indemnified by other means. Additionally, some cyber technologies we develop under contract for our customers, particularly those related to homeland security, may raise potential liabilities related to intellectual property and civil liberties, including privacy concerns, which may not be fully insured or indemnified by other means or involve reputational risk. Our enterprise risk management program includes threat detection and cybersecurity mitigation plans, and our disclosure controls and procedures address cybersecurity and include elements intended to ensure that there is an analysis of potential disclosure obligations arising from security breaches. We also maintain compliance programs to address the potential applicability of restrictions on trading while in possession of material, nonpublic information generally and in connection with a cybersecurity breach. If we fail to manage acquisitions, divestitures, equity investments and other transactions successfully or if acquired entities or equity investments fail to perform as expected, our financial results, business and future prospects could be harmed. In pursuing our business strategy, we routinely conduct discussions, evaluate companies, and enter into agreements regarding possible acquisitions, joint ventures, other investments and divestitures. We seek to identify acquisition or investment opportunities that will expand or complement our existing products and services or customer base, at attractive valuations. We often compete with other companies for the same opportunities. To be successful, we must conduct due diligence to identify valuation issues and potential loss contingencies; negotiate transaction terms; complete and close complex transactions; integrate acquired companies and employees; and realize anticipated operating synergies efficiently and effectively. Acquisition, divestiture, joint venture and investment transactions often require substantial management resources and have the potential to divert our attention from our existing business. Unidentified or identified but un-indemnified pre-closing liabilities could affect our future financial results, particularly through successor liability under procurement laws and regulations such as the False Claims Act or Truth in Negotiations Act, anti-corruption, environmental, tax, import-export and technology transfer laws which provide for civil and criminal penalties and the potential for debarment. We also may incur unanticipated costs or expenses, including post-closing asset impairment charges, expenses associated with eliminating duplicate facilities, employee retention, transaction-related or other litigation, and other liabilities. Any of the foregoing could adversely affect our business and results of operations. Joint ventures and other noncontrolling investments operate under shared control with other parties. Depending on our rights and percentage of ownership, we may consolidate the financial results of such entities or account for our interests under the equity method. Under the equity method of accounting for nonconsolidated ventures and investments, we recognize our share of the operating profit or loss of these joint ventures in our results of operations. Our operating results may be affected by the performance of businesses over which we do not exercise control, which includes the inability to prevent strategic decisions that may adversely affect our business, financial condition and results of operations. As a result, we may not be successful in achieving the growth or other intended benefits of strategic investments. Our joint ventures face many of the same risks and uncertainties as we do. The most significant impact of our equity investments is in our Space business segment where approximately 12% of its 2019 operating profit was derived from its share of earnings from equity method investees, particularly that in United Launch Alliance (ULA). During 2018, we recognized a non-cash asset impairment charge of $110 million related to our equity method investee, Advanced Military Maintenance, Repair and Overhaul Center LLC (AMMROC). As of December 31, 2019, the carrying value of our investment in AMMROC is $435 million. We are continuing to monitor this investment, in light of ongoing performance, business base and economic issues and we may have to record our portion of additional charges, or an impairment of our investment, or both, should the carrying value of our investment exceed its fair value. Substantially all of AMMROC’s current business is dependent on one contract that is currently up for re-competition and if AMMROC is not successful in securing such business on terms consistent with prior contracts, or at all, the carrying value of our investment would be adversely affected. These charges could adversely affect our results of operations. See “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements. Through our Lockheed Martin Ventures Fund, we make investments in companies (both within the U.S. and in other countries) that we believe are developing disruptive technologies applicable to our core businesses and new initiatives important to Lockheed Martin. These investments may be in the forms of common or preferred stock, convertible debt securities or investments in funds. Typically, we hold a non-controlling interest and, therefore, are unable to influence strategic decisions by these companies and may have limited visibility into their activities, which may result in our not realizing the intended benefits of the investments. We have also begun investing in funds that invest in other companies. We have less influence and visibility as a non-controlling investor in a fund. There can be no assurance that we will continue to increase our dividend or to repurchase shares of our common stock at current levels. Cash dividend payments and share repurchases are subject to limitations under applicable laws and the discretion of our Board of Directors and are determined after considering then-existing conditions, including earnings, other operating results and capital requirements. Our payment of dividends and share repurchases could vary from historical practices or our stated expectations. Decreases in asset values or increases in liabilities, including liabilities associated with benefit plans and assets and liabilities associated with taxes, can reduce net earnings and stockholders’ equity. A deficit in stockholders’ equity could limit our ability to pay dividends and make share repurchases under Maryland state law in the future. In addition, the timing and amount of share repurchases under board approved share repurchase plans is within the discretion of management and will depend on many factors, including results of operations, capital requirements and applicable law. Our business involves significant risks and uncertainties that may not be covered by indemnity or insurance. A significant portion of our business relates to designing, developing and manufacturing advanced defense and technology products and systems. New technologies may be untested or unproven. Failure of some of these products and services could result in extensive loss of life or property damage. Accordingly, we may incur liabilities that are unique to our products and services. In some but not all circumstances, we may be entitled to certain legal protections or indemnifications from our customers, either through U.S. Government indemnifications under Public Law 85-804 or the Price-Anderson Act, qualification of our products and services by the Department of Homeland Security under the SAFETY Act provisions of the Homeland Security Act of 2002, contractual provisions or otherwise. We endeavor to obtain insurance coverage from established insurance carriers to cover these risks and liabilities. The amount of insurance coverage that we maintain may not be adequate to cover all claims or liabilities. Existing coverage may be canceled while we remain exposed to the risk and it is not possible to obtain insurance to protect against all operational risks, natural hazards and liabilities. For example, we are limited in the amount of insurance we can obtain to cover certain natural hazards such as earthquakes, fires or extreme weather conditions. We have significant operations in geographic areas prone to these risks, such as in California, Florida and Texas. Even if insurance coverage is available, we may not be able to obtain it in an amount, at a price or on terms acceptable to us. Some insurance providers may be unable or unwilling to provide us insurance given the nature of our business or products. Additionally, disputes with insurance carriers over coverage terms or the insolvency of one or more of our insurance carriers may significantly affect the amount or timing of our cash flows. Substantial costs resulting from an accident; failure of or defect in our products or services; natural catastrophe or other incident; or liability arising from our products and services in excess of any legal protection, indemnity, and our insurance coverage (or for which indemnity or insurance is not available or not obtained) could adversely impact our financial condition, cash flows, and operating results. Any accident, failure of, or defect in our products or services, even if fully indemnified or insured, could negatively affect our reputation among our customers and the public and make it more difficult for us to compete effectively. It also could affect the cost and availability of adequate insurance in the future. Pension funding and costs are dependent on several economic assumptions which if changed may cause our future earnings and cash flow to fluctuate significantly as well as affect the affordability of our products and services. Many of our employees are covered by defined benefit pension plans, retiree medical and life insurance plans, and other postemployment plans (collectively, postretirement benefit plans). The impact of these plans on our earnings may be volatile in that the amount of expense we record for our postretirement benefit plans may materially change from year to year because the calculations are sensitive to changes in several key economic assumptions including interest rates and rates of return on plan assets, other actuarial assumptions including participant longevity (also known as mortality) and employee turnover, as well as the timing of cash funding. Changes in these factors, including actual returns on plan assets, may also affect our plan funding, cash flow and stockholders’ equity. In addition, the funding of our plans and recovery of costs on our contracts, as described below, may also be subject to changes caused by legislative or regulatory actions. With regard to cash flow, we make substantial cash contributions to our plans as required by the Employee Retirement Income Security Act of 1974 (ERISA), as amended by the Pension Protection Act of 2006 (PPA). We generally are able to recover these contributions related to our plans as allowable costs on our U.S. Government contracts, including FMS. However, there is a lag between the time when we contribute cash to our plans under pension funding rules and when we recover pension costs under U.S. Government Cost Accounting Standards (CAS). We also may not be successful in our efforts to reduce the volatility of our outstanding pension obligations and to accelerate CAS recovery and recover associated costs from the U.S. Government. For more information on how these factors could impact earnings, financial position, cash flow and stockholders’ equity, see “Critical Accounting Policies - Postretirement Benefit Plans” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 11 - Postretirement Benefit Plans” included in our Notes to Consolidated Financial Statements. Environmental costs could adversely affect our future earnings as well as the affordability of our products and services. Our operations are subject to and affected by a variety of federal, state, local and foreign environmental protection laws and regulations. We are involved in environmental remediation at some of our current and former facilities and at third-party-owned sites where we have been designated a potentially responsible party as a result of our prior activities and those of our predecessor companies. In addition, we could be affected by future regulations imposed or claims asserted in response to concerns over climate change, other aspects of the environment or natural resources. We have an ongoing, comprehensive sustainability program to reduce the effects of our operations on the environment. We manage and have managed various U.S. Government-owned facilities on behalf of the U.S. Government. At such facilities, environmental compliance and remediation costs historically have been the responsibility of the U.S. Government. We have relied, and continue to rely with respect to past practices, on U.S. Government funding to pay such costs, notwithstanding efforts by some U.S. Government representatives to limit this responsibility. Although the U.S. Government remains responsible for capital and operating costs associated with environmental compliance, responsibility for fines and penalties associated with environmental noncompliance typically is borne by either the U.S. Government or the contractor, depending on the contract and the relevant facts. Some environmental laws include criminal provisions. A conviction under environmental law could affect our ability to be awarded future or perform under existing U.S. Government contracts. We have incurred and will continue to incur liabilities under various federal, state, local and foreign statutes for environmental protection and remediation. The extent of our financial exposure cannot in all cases be reasonably estimated at this time. Among the variables management must assess in evaluating costs associated with these cases and remediation sites generally are the status of site assessment, extent of the contamination, impacts on natural resources, changing cost estimates, evolution of technologies used to remediate the site, continually evolving environmental standards and cost allowability issues, including varying efforts by the U.S. Government to limit allowability of our costs in resolving liability at third-party-owned sites. For information regarding these matters, including current estimates of the amounts that we believe are required for environmental remediation to the extent probable and estimable, see “Critical Accounting Policies - Environmental Matters” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 14 - Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements. We are involved in a number of legal proceedings. We cannot predict the outcome of litigation and other contingencies with certainty. Our business may be adversely affected by the outcome of legal proceedings and other contingencies that cannot be predicted with certainty. As required by U.S. GAAP, we estimate loss contingencies and establish reserves based on our assessment of contingencies where liability is deemed probable and reasonably estimable in light of the facts and circumstances known to us at a particular point in time. Subsequent developments in legal proceedings may affect our assessment and estimates of the loss contingency recorded as a liability or as a reserve against assets in our financial statements. For a description of our current legal proceedings, see Item 3 - Legal Proceedings along with “Note 14 - Legal Proceedings, Commitments and Contingencies” included in our Notes to Consolidated Financial Statements. Our business and financial performance depends, in part, on our ability to identify, attract and retain a highly skilled workforce. Due to the specialized nature of our business, our future performance is highly dependent upon our ability to identify, attract and retain a workforce with the requisite skills in multiple areas including: engineering, science, manufacturing, information technology, cybersecurity, business development and strategy and management. Our operating performance is also dependent upon personnel who hold security clearances and receive substantial training in order to work on certain programs or tasks. Additionally, as we expand our operations internationally, it is increasingly important to hire and retain personnel with relevant experience in local laws, regulations, customs, traditions and business practices. We face a number of challenges that may affect personnel retention such as our endeavors to increase the efficiency of our operations and improve the affordability of our products and services such as workforce reductions and consolidating and relocating certain operations. Additionally, a substantial portion of our workforce (including personnel in leadership positions) are retirement-eligible or nearing retirement. To the extent that we lose experienced personnel, it is critical that we develop other employees, hire new qualified personnel, and successfully manage the short and long-term transfer of critical knowledge and skills. Competition for personnel is intense, and we may not be successful in attracting or retaining personnel with the requisite skills or clearances. We increasingly compete with commercial technology companies outside of the aerospace and defense industry for qualified technical, cyber and scientific positions as the number of qualified domestic engineers is decreasing and the number of cyber professionals is not keeping up with demand. To the extent that these companies grow at a faster rate or face fewer cost and product pricing constraints, they may be able to offer more attractive compensation and other benefits to candidates or our existing employees. If the demand for skilled personnel exceeds supply, we could experience higher labor, recruiting or training costs in order to attract and retain such employees. We could experience difficulty in performing our contracts and executing on new or growing programs if we have a shortage of skilled employees or if our recruiting is delayed. We also must manage leadership development and succession planning throughout our business. While we have processes in place for management transition and the transfer of knowledge and skills, the loss of key personnel, coupled with an inability to adequately train other personnel, hire new personnel or transfer knowledge and skills, could significantly impact our ability to perform under our contracts and execute on new or growing programs. Approximately 20% of our employees are covered by collective bargaining agreements with various unions. If we encounter difficulties with renegotiations or renewals of collective bargaining arrangements or are unsuccessful in those efforts, we could incur additional costs and experience work stoppages. Union actions at suppliers can also affect us. Any delays or work stoppages could adversely affect our ability to perform under our contracts, which could negatively impact our results of operations, cash flows, and financial condition. Our estimates and projections may prove to be inaccurate and certain of our assets may be at risk of future impairment. The accounting for some of our most significant activities is based on judgments and estimates, which are complex and subject to many variables. For example, accounting for sales using the percentage-of-completion method requires that we assess risks and make assumptions regarding schedule, cost, technical and performance issues for thousands of contracts, many of which are long-term in nature. Additionally, we initially allocate the purchase price of acquired businesses based on a preliminary assessment of the fair value of identifiable assets acquired and liabilities assumed. For significant acquisitions we may use a one-year measurement period to analyze and assess a number of factors used in establishing the asset and liability fair values as of the acquisition date which could result in adjustments to asset and liability balances. We have $10.6 billion of goodwill assets recorded on our consolidated balance sheet as of December 31, 2019 from previous acquisitions, which represents approximately 22% of our total assets. These goodwill assets are subject to annual impairment testing and more frequent testing upon the occurrence of certain events or significant changes in circumstances that indicate goodwill may be impaired. If we experience changes or factors arise that negatively affect the expected cash flows of a reporting unit, we may be required to write off all or a portion of the reporting unit’s related goodwill assets. The carrying value and fair value of our Sikorsky reporting unit are closely aligned. Therefore, any business deterioration, contract cancellations or terminations, or market pressures could cause our sales, earnings and cash flows to decline below current projections and could cause goodwill and intangible assets to be impaired. Additionally, Sikorsky may not perform as expected, or demand for its products may be adversely affected by global economic conditions, including oil and gas trends that are outside of our control. Changes in U.S. (federal or state) or foreign tax laws and regulations, or their interpretation and application, including those with retroactive effect, including the amortization for research or experimental expenditures, could result in increases in our tax expense and affect profitability and cash flows. The amount of net deferred tax assets will change periodically based on several factors, including the measurement of our postretirement benefit plan obligations, actual cash contributions to our postretirement benefit plans, and future changes in tax laws. In addition, we are regularly under audit or examination by tax authorities, including foreign tax authorities. The final determination of tax audits and any related litigation could similarly result in unanticipated increases in our tax expense and affect profitability and cash flows. Actual financial results could differ from our judgments and estimates. See “Critical Accounting Policies” in Management’s Discussion and Analysis of Financial Condition and Results of Operations and “Note 1 - Significant Accounting Policies” included in our Notes to Consolidated Financial Statements for a complete discussion of our significant accounting policies and use of estimates. ITEM 1B.