Item 1. Financial Statements

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED)

						Three Months Ended March 31
(in millions, except per share amounts)						2024						2023
Sales and service revenues
Product sales						$	1,787					$	1,829
Service revenues						1,018						845
Sales and service revenues						2,805						2,674
Cost of sales and service revenues
Cost of product sales						1,537						1,568
Cost of service revenues						893						756
Income from operating investments, net						12						12
Other income and gains (losses), net						(1)						(1)
General and administrative expenses						232						220
Operating income						154						141
Other income (expense)
Interest expense						(21)						(24)
Non-operating retirement benefit						44						37
Other, net						7						9
Earnings before income taxes						184						163
Federal and foreign income tax expense						31						34
Net earnings						$	153					$	129
Basic earnings per share						$	3.87					$	3.23
Weighted-average common shares outstanding						39.5						39.9
Diluted earnings per share						$	3.87					$	3.23
Weighted-average diluted shares outstanding						39.5						39.9
Dividends declared per share						$	1.30					$	1.24
Net earnings from above						$	153					$	129
Other comprehensive income
Change in unamortized benefit plan costs						5						4
Tax expense for items of other comprehensive income						(2)						(1)
Other comprehensive income, net of tax						3						3
Comprehensive income						$	156					$	132

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

HUNTINGTON INGALLS INDUSTRIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (UNAUDITED)

($ in millions)						March 31, 2024						December 31, 2023
Assets
Current Assets
Cash and cash equivalents						$	10					$	430
Accounts receivable, net of allowance for expected credit losses of $5 million as of 2024 and $8 million as of 2023						718						461
Contract assets						1,661						1,537
Inventoried costs						199						186
Income taxes receivable						140						183
Prepaid expenses and other current assets						105						83
Total current assets						2,833						2,880
Property, plant, and equipment, net of accumulated depreciation of $2,515 million as of 2024 and $2,467 million as of 2023						3,298						3,296
Operating lease assets						251						262
Goodwill						2,618						2,618
Other intangible assets, net of accumulated amortization of $1,036 million as of 2024 and $1,009 million as of 2023						864						891
Pension plan assets						920						888
Miscellaneous other assets						383						380
Total assets						$	11,167					$	11,215
Liabilities and Stockholders' Equity
Current Liabilities
Trade accounts payable						$	608					$	554
Accrued employees’ compensation						342						382
Short-term debt and current portion of long-term debt						203						231
Current portion of postretirement plan liabilities						129						129
Current portion of workers’ compensation liabilities						225						224
Contract liabilities						936						1,063
Other current liabilities						505						449
Total current liabilities						2,948						3,032
Long-term debt						2,235						2,214
Pension plan liabilities						214						212
Other postretirement plan liabilities						239						241
Workers’ compensation liabilities						451						449
Long-term operating lease liabilities						217						228
Deferred tax liabilities						351						367
Other long-term liabilities						386						379
Total liabilities						7,041						7,122
Commitments and Contingencies (Note 10)
Stockholders’ Equity
Common stock, $0.01 par value; 150,000,000 shares authorized; 53,709,837 shares issued and 39,509,640 shares outstanding as of March 31, 2024, and 53,595,748 shares issued and 39,618,880 shares outstanding as of December 31, 2023						1						1
Additional paid-in capital						2,038						2,045
Retained earnings						4,855						4,755
Treasury stock						(2,349)						(2,286)
Accumulated other comprehensive loss						(419)						(422)
Total stockholders’ equity						4,126						4,093
Total liabilities and stockholders’ equity						$	11,167					$	11,215

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

HUNTINGTON INGALLS INDUSTRIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

						Three Months Ended March 31
($ in millions)						2024						2023
Operating Activities
Net earnings						$	153					$	129
Adjustments to reconcile to net cash used in operating activities
Depreciation						53						55
Amortization of purchased intangibles						27						32
Amortization of debt issuance costs						2						2
Provision for expected credit losses						(3)						—
Stock-based compensation						14						12
Deferred income taxes						(17)						(30)
Loss (gain) on investments in marketable securities						(8)						(8)
Change in
Accounts receivable						(253)						(119)
Contract assets						(124)						(58)
Inventoried costs						(13)						(7)
Prepaid expenses and other assets						25						30
Accounts payable and accruals						(34)						(31)
Retiree benefits						(27)						(18)
Other non-cash transactions, net						3						2
Net cash used in operating activities						(202)						(9)
Investing Activities
Capital expenditures
Capital expenditure additions						(75)						(43)
Grant proceeds for capital expenditures						3						3
Investment in affiliates						—						(20)
Other investing activities, net						1						—
Net cash used in investing activities						(71)						(60)
Financing Activities
Repayment of long-term debt						(145)						(10)
Proceeds from revolving credit facility borrowings						42						—
Repayment of revolving credit facility borrowings						(20)						—
Net borrowings on commercial paper						117						—
Dividends paid						(51)						(49)
Repurchases of common stock						(62)						(9)
Employee taxes on certain share-based payment arrangements						(25)						(12)
Other financing activities, net						(3)						—
Net cash used in financing activities						(147)						(80)
Change in cash and cash equivalents						(420)						(149)
Cash and cash equivalents, beginning of period						430						467
Cash and cash equivalents, end of period						$	10					$	318
Supplemental Cash Flow Disclosure
Cash paid for interest						$	10					$	12
Non-Cash Investing and Financing Activities
Capital expenditures accrued in accounts payable						$	6					$	8

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

HUNTINGTON INGALLS INDUSTRIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED)

Three Months Ended March 31, 2024 and 2023 ($ in millions)						Common Stock						Additional Paid-in Capital						Retained Earnings (Deficit)						Treasury Stock						Accumulated Other Comprehensive Income (Loss)						Total Stockholders' Equity
Balance as of December 31, 2022						$	1					$	2,022					$	4,276					$	(2,211)					$	(599)					$	3,489
Net earnings						—						—						129						—						—						129
Dividends declared ($1.24 per share)						—						—						(49)						—						—						(49)
Stock-based compensation						—						2						(2)						—						—						—
Other comprehensive income, net of tax						—						—						—						—						3						3
Treasury stock activity						—						—						—						(9)						—						(9)
Balance as of March 31, 2023						$	1					$	2,024					$	4,354					$	(2,220)					$	(596)					$	3,563
Balance as of December 31, 2023						$	1					$	2,045					$	4,755					$	(2,286)					$	(422)					$	4,093
Net earnings						—						—						153						—						—						153
Dividends declared ($1.30 per share)						—						—						(51)						—						—						(51)
Stock-based compensation						—						(7)						(2)						—						—						(9)
Other comprehensive income, net of tax						—						—						—						—						3						3
Treasury stock activity						—						—						—						(63)						—						(63)
Balance as of March 31, 2024						$	1					$	2,038					$	4,855					$	(2,349)					$	(419)					$	4,126

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

HUNTINGTON INGALLS INDUSTRIES, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

1. DESCRIPTION OF BUSINESS

Huntington Ingalls Industries, Inc. ("HII" or the "Company") is a global, all-domain defense partner, building and delivering the world’s most powerful, survivable naval ships and technologies that safeguard America’s seas, sky, land, space, and cyber. HII is organized into three reportable segments: Ingalls Shipbuilding ("Ingalls"), Newport News Shipbuilding ("Newport News"), and Mission Technologies. For more than a century, the Company's Ingalls segment in Mississippi and Newport News segment in Virginia have built more ships in more ship classes than any other U.S. naval shipbuilder, making HII America's largest shipbuilder. The Mission Technologies segment develops integrated solutions that enable today's connected, all-domain force.

2. BASIS OF PRESENTATION

Principles of Consolidation - The unaudited condensed consolidated financial statements of HII and its subsidiaries have been prepared in conformity with accounting principles generally accepted in the United States of America ("GAAP") and the instructions to Form 10-Q promulgated by the Securities and Exchange Commission ("SEC"). As used in the Notes to the Condensed Consolidated Financial Statements (Unaudited), the terms "HII" and "the Company" refer to HII and its subsidiaries. All intercompany transactions and balances are eliminated in consolidation. For classification of current assets and liabilities related to its long-term production contracts, the Company uses the duration of these contracts as its operating cycle, which is generally longer than one year.

These unaudited condensed consolidated financial statements include all adjustments of a normal recurring nature considered necessary by management for a fair presentation of the unaudited condensed consolidated financial position, results of operations, and cash flows and should be read in conjunction with the Company's audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2023 (the "2023 Annual Report on Form 10-K").

The quarterly information is labeled using a calendar convention; that is, first quarter is consistently labeled as ending on March 31, second quarter as ending on June 30, and third quarter as ending on September 30. It is management's long-standing practice to establish interim closing dates using a "fiscal" calendar, which requires the businesses to close their books on a Friday near these quarter-end dates in order to normalize the potentially disruptive effects of quarterly closings on business processes. This practice only exists for interim periods within a reporting year.

Accounting Estimates - The preparation of the Company's unaudited condensed consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingencies at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Estimates have been prepared on the basis of the most current and best available information, and actual results could differ materially from those estimates.

Fair Value of Financial Instruments - Except for the Company's long-term debt, the carrying amounts of the Company's financial instruments that are recorded at historical cost approximate fair value due to the short-term nature of the instruments and low credit risk associated with the respective counterparties.

The Company maintains multiple grantor trusts to fund certain non-qualified pension plans. These trusts were valued at $226 million and $220 million as of March 31, 2024, and December 31, 2023, respectively, and are presented within miscellaneous other assets within the unaudited condensed consolidated statements of financial position. These trusts consist primarily of investments in marketable securities, which are held at fair value within Level 1 of the fair value hierarchy.

The estimated fair values of the Company's total long-term debt (including current portion), excluding finance lease liabilities, as of March 31, 2024, and December 31, 2023, were $2,178 million and $2,309 million, respectively. The estimated fair values of the current portion of the Company's long-term debt, excluding finance lease liabilities, were $84 million and $229 million as of March 31, 2024, and December 31, 2023, respectively. The fair values of the Company's long-term debt were calculated based on recent trades of the Company's debt instruments in inactive markets, which fall within Level 2 of the fair value hierarchy.

Debt - In January 2024, the Company prepaid the remaining balance of $145 million on its term loan due August 19, 2024. For further information on the Company's debt, see the Company's 2023 Annual Report on Form 10-K.

3. ACCOUNTING STANDARDS UPDATES

In November 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The new guidance requires new tabular and narrative segment disclosures of significant expenses that are regularly reported to the chief operating decision maker and the nature of segment expense information used to manage operations. The new guidance is effective for annual reporting periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is currently evaluating the impacts of the new guidance on its consolidated financial statements and related disclosures.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The new guidance requires disaggregated information about the effective tax rate reconciliation and additional information on taxes paid that meet a quantitative threshold. The new guidance is effective for annual reporting periods beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impacts of the new guidance on its consolidated financial statements and related disclosures.

Other accounting pronouncements issued but not effective until after December 31, 2024, are not expected to have a material impact on the Company's consolidated financial position, results of operations, and cash flows.

4. STOCKHOLDERS' EQUITY

Treasury Stock - In January 2024, the Company's board of directors authorized an increase in the Company's stock repurchase program from $3.2 billion to $3.8 billion and an extension of the term of the program to December 31, 2028. Repurchases are made from time to time at management's discretion in accordance with applicable federal securities laws. For the three months ended March 31, 2024, the Company repurchased 223,329 shares at an aggregate cost of $63 million, including $1 million of accrued excise tax. For the three months ended March 31, 2023, the Company repurchased 39,325 shares at an aggregate cost of $9 million. The cost of purchased shares is recorded as treasury stock in the unaudited condensed consolidated statements of financial position.

Dividends - The Company paid cash dividends totaling $51 million and $49 million for the three months ended March 31, 2024 and 2023, respectively.

Accumulated Other Comprehensive Loss - Other comprehensive income (loss) refers to gains and losses recorded as an element of stockholders' equity but excluded from net earnings. The accumulated other comprehensive loss was comprised of unamortized benefit plan costs of $419 million and $422 million as of March 31, 2024, and December 31, 2023, respectively.

The changes in accumulated other comprehensive loss by component for the three months ended March 31, 2024 and 2023, were as follows:

($ in millions)						Benefit Plans						Other						Total
Balance as of December 31, 2022						$	(599)					$	—					$	(599)
Amounts reclassified from accumulated other comprehensive loss
Amortization of prior service cost1						3						—						3
Amortization of net actuarial loss1						1						—						1
Tax expense for items of other comprehensive income						(1)						—						(1)
Net current period other comprehensive income						3						—						3
Balance as of March 31, 2023						$	(596)					$	—					$	(596)
Balance as of December 31, 2023						$	(422)					$	—					$	(422)
Amounts reclassified from accumulated other comprehensive loss
Amortization of prior service cost1						3						—						3
Amortization of net actuarial loss1						2						—						2
Tax expense for items of other comprehensive income						(2)						—						(2)
Net current period other comprehensive income						3						—						3
Balance as of March 31, 2024						$	(419)					$	—					$	(419)

1 These accumulated comprehensive loss components are included in the computation of net periodic benefit cost. See Note 11: Employee Pension and Other Postretirement Benefits. The tax expense recorded in stockholders' equity for the amounts reclassified from accumulated other comprehensive loss for the three months ended March 31, 2024 and 2023, was $2 million and $1 million, respectively.

5. EARNINGS PER SHARE

Basic and diluted earnings per common share were calculated as follows:

						Three Months Ended March 31
(in millions, except per share amounts)						2024						2023
Net earnings						$	153					$	129
Weighted-average common shares outstanding						39.5						39.9
Net dilutive effect of stock awards						—						—
Dilutive weighted-average common shares outstanding						39.5						39.9
Earnings per share - basic						$	3.87					$	3.23
Earnings per share - diluted						$	3.87					$	3.23

Under the treasury stock method, the Company has excluded from the diluted share amounts presented above the effects of 0.4 million Restricted Performance Stock Rights ("RPSRs") and 0.1 million Restricted Stock Rights ("RSRs") for the three months ended March 31, 2024, and 0.5 million RPSRs for the three months ended March 31, 2023.

6. REVENUE

Disaggregation of Revenue

The following tables present revenues on a disaggregated basis, in a manner that reconciles with the Company's reportable segment disclosures, for the following categories: product versus service type, customer type, contract type, and major program. The Company believes that this level of disaggregation provides investors with information to evaluate the Company’s financial performance and provides the Company with information to make capital

allocation decisions in the most appropriate manner. For more information on the Company's contracts, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of the Company's 2023 Annual Report on Form 10-K.

The following tables present revenues on a disaggregated basis:

						Three Months Ended March 31, 2024
($ in millions)						Ingalls						Newport News						Mission Technologies						Intersegment Eliminations						Total
Revenue Type
Product sales						$	586					$	1,176					$	25					$	—					$	1,787
Service revenues						67						257						694						—						1,018
Intersegment						2						1						31						(34)						—
Sales and service revenues						$	655					$	1,434					$	750					$	(34)					$	2,805
Customer Type
Federal						$	653					$	1,433					$	717					$	—					$	2,803
Commercial						—						—						2						—						2
Intersegment						2						1						31						(34)						—
Sales and service revenues						$	655					$	1,434					$	750					$	(34)					$	2,805
Contract Type
Firm fixed-price						$	1					$	2					$	82					$	—					$	85
Fixed-price incentive						586						788						2						—						1,376
Cost-type						66						643						593						—						1,302
Time and materials						—						—						42						—						42
Intersegment						2						1						31						(34)						—
Sales and service revenues						$	655					$	1,434					$	750					$	(34)					$	2,805

						Three Months Ended March 31, 2023
($ in millions)						Ingalls						Newport News						Mission Technologies						Intersegment Eliminations						Total
Revenue Type
Product sales						$	534					$	1,271					$	24					$	—					$	1,829
Service revenues						41						234						570						—						845
Intersegment						2						1						30						(33)						—
Sales and service revenues						$	577					$	1,506					$	624					$	(33)					$	2,674
Customer Type
Federal						$	575					$	1,505					$	581					$	—					$	2,661
Commercial						—						—						13						—						13
Intersegment						2						1						30						(33)						—
Sales and service revenues						$	577					$	1,506					$	624					$	(33)					$	2,674
Contract Type
Firm fixed-price						$	2					$	—					$	75					$	—					$	77
Fixed-price incentive						533						829						—						—						1,362
Cost-type						40						676						467						—						1,183
Time and materials						—						—						52						—						52
Intersegment						2						1						30						(33)						—
Sales and service revenues						$	577					$	1,506					$	624					$	(33)					$	2,674

						Three Months Ended March 31
($ in millions)						2024						2023
Major Programs
Amphibious assault ships						$	352					$	323
Surface combatants and coast guard cutters						300						253
Other						3						1
Total Ingalls						655						577
Aircraft carriers						792						837
Submarines						516						540
Other						126						129
Total Newport News						1,434						1,506
C5ISR, CEW&S, LVC						626						518
Other						124						106
Total Mission Technologies						750						624
Intersegment eliminations						(34)						(33)
Sales and service revenues						$	2,805					$	2,674

As of March 31, 2024, the Company had $48.4 billion of remaining performance obligations. The Company expects to recognize approximately 40% of its remaining performance obligations as revenue through 2025, an additional 30% through 2027, and the balance thereafter.

Cumulative Catch-up Revenue Adjustments

The following table presents the effect of net cumulative catch-up revenue adjustments on operating income and diluted earnings per share:

						Three Months Ended March 31
($ in millions, except per share amounts)						2024						2023
Effect on operating income						$	2					$	9
Effect on diluted earnings per share						$	0.03					$	0.17

For the three months ended March 31, 2024, no individual favorable cumulative catch-up revenue adjustment was material to the Company's unaudited condensed consolidated statements of operations and comprehensive income. For the three months ended March 31, 2024, no individual unfavorable cumulative catch-up revenue adjustment was material to the Company's unaudited condensed consolidated statements of operations and comprehensive income.

Cumulative catch-up revenue adjustments for the three months ended March 31, 2023, included a favorable adjustment of $15 million on a contract at the Company's Newport News segment, which increased diluted earnings per share by $0.30. Cumulative catch-up revenue adjustments for the three months ended March 31, 2023, included an unfavorable adjustment of $14 million on a contract at the Company's Newport News segment, which decreased diluted earnings per share by $0.28.

Contract Balances

The Company reports contract balances in a net contract asset or contract liability position on a contract-by-contract basis at the end of each reporting period. Net contract assets were comprised as follows:

($ in millions)						March 31, 2024						December 31, 2023
Contract assets						$	1,661					$	1,537
Contract liabilities						936						1,063
Net contract assets						$	725					$	474

The Company’s net contract assets increased $251 million from December 31, 2023, to March 31, 2024, primarily resulting from an increase in contract assets related to revenue on certain U.S. Navy contracts. For the three months ended March 31, 2024, the Company recognized revenue of $641 million related to its contract liabilities as of December 31, 2023. For the three months ended March 31, 2023, the Company recognized revenue of $551 million related to its contract liabilities as of December 31, 2022.

7. SEGMENT INFORMATION

The following table presents segment results for the three months ended March 31, 2024 and 2023:

						Three Months Ended March 31
($ in millions)						2024						2023
Sales and Service Revenues
Ingalls						$	655					$	577
Newport News						1,434						1,506
Mission Technologies						750						624
Intersegment eliminations						(34)						(33)
Sales and service revenues						$	2,805					$	2,674
Operating Income
Ingalls						$	60					$	55
Newport News						82						84
Mission Technologies						28						17
Segment operating income						170						156
Non-segment factors affecting operating income
Operating FAS/CAS Adjustment						(17)						(19)
Non-current state income taxes						1						4
Operating income						$	154					$	141

Operating FAS/CAS Adjustment - The Operating FAS/CAS Adjustment represents the difference between the service cost component of our pension and other postretirement benefit plan expense determined in accordance with U.S. GAAP Financial Accounting Standards ("FAS") and our pension and other postretirement expense under U.S. Government Cost Accounting Standards ("CAS").

The following table presents the Company's assets by segment:

($ in millions)						March 31, 2024						December 31, 2023
Assets
Ingalls						$	1,674					$	1,619
Newport News						4,846						4,612
Mission Technologies						3,219						3,161
Corporate						1,428						1,823
Total assets						$	11,167					$	11,215

8. INCOME TAXES

The Company's earnings are primarily domestic, and its effective income tax rates on earnings from operations for the three months ended March 31, 2024 and 2023, were 16.8% and 20.9%, respectively. The lower effective tax rate differed from the federal statutory corporate income tax rate of 21% for the three months ended March 31, 2024, primarily due to research and development tax credits and income tax benefits associated with stock award settlement activity.

The Company's unrecognized tax benefits increased by $2 million during the three months ended March 31, 2024. As of March 31, 2024, the estimated amounts of the Company's unrecognized tax benefits, excluding interest and

penalties, were liabilities of $100 million. Assuming a sustainment of these tax positions, a reversal of $78 million of the accrued amounts would favorably affect the Company's effective federal income tax rate in future periods.

The Company recognizes interest and penalties related to unrecognized tax benefits as income tax expense. For the three months ended March 31, 2024, interest resulting from the unrecognized tax benefits noted above increased income tax expense by $1 million.

Non-current state income taxes include deferred state income taxes, which reflect the change in deferred state tax assets and liabilities and the tax expense or benefit associated with changes in unrecognized state tax benefits in the relevant period. These amounts are recorded within operating income. Current period state income tax expense is charged to contract costs and included in cost of sales and service revenues in segment operating income.

9. INVESTIGATIONS, CLAIMS, AND LITIGATION

The Company is involved in legal proceedings before various courts and administrative agencies, and is periodically subject to government examinations, inquiries and investigations. Pursuant to Financial Accounting Standards Board Accounting Standards Codification 450 - "Contingencies," the Company has accrued for losses associated with investigations, claims, and litigation when, and to the extent that, loss amounts related to the investigations, claims, and litigation are probable and can be reasonably estimated. The actual losses that might be incurred to resolve such investigations, claims, and litigation may be higher or lower than the amounts accrued. The Company has also provided footnote disclosure for matters for which a material loss is reasonably possible but a reserve has not been accrued because the likelihood of a material loss is not probable.

Antitrust Complaint - On October 6, 2023, a class action antitrust lawsuit was filed against the Company and other defendants in the U.S. District Court for the Eastern District of Virginia. The lawsuit names several HII companies, among other companies, as defendants. The named plaintiffs generally allege that the defendant companies have adhered to a “gentlemen’s agreement” that prohibits any defendant from actively recruiting naval engineers from other defendants. The complaint seeks class certification, treble damages, and any other relief to which the plaintiffs are entitled. The District Court dismissed the lawsuit against all defendants in April 2024.

COVID Insurance Claim - In September 2020, the Company filed a complaint against 32 reinsurers in the Superior Court, State of Vermont, Franklin Unit, seeking a judgment declaring that the Company's business interruption and other losses associated with COVID-19 are covered by the Company's property insurance program. The Company also initiated arbitration proceedings against six other reinsurers seeking similar relief. In July 2021, the Vermont court granted the reinsurers’ motion for judgment on the pleadings, which would have ended the Company’s claim. The Company appealed the decision to the Vermont Supreme Court, which reversed and remanded the lower court’s decision in September 2022, allowing the Company’s claim to proceed. No assurances can be provided regarding the ultimate resolution of this matter.

U.S. Government Investigations and Claims - Departments and agencies of the U.S. Government have the authority to investigate various transactions and operations of the Company, and the results of such investigations may lead to administrative, civil, or criminal proceedings, the ultimate outcome of which could be fines, penalties, repayments or compensatory, treble, or other damages. U.S. Government regulations provide that certain findings against a contractor may also lead to suspension or debarment from future U.S. Government contracts or the loss of export privileges. Any suspension or debarment would have a material effect on the Company because of its reliance on government contracts.

Asbestos Related Claims - HII and its predecessors-in-interest are defendants in a longstanding series of cases that have been and continue to be filed in various jurisdictions around the country, wherein former and current employees and various third parties allege exposure to asbestos containing materials while on or associated with HII premises or while working on vessels constructed or repaired by HII. In some instances, partial or full insurance coverage is available for the Company's liabilities. The costs to resolve these cases during the three months ended March 31, 2024 and 2023, were not material individually or in the aggregate. The Company’s estimate of asbestos-related liabilities is subject to uncertainty because such liabilities are influenced by many variables that are inherently difficult to predict. Although the Company believes the ultimate resolution of current cases will not have a material effect on its condensed consolidated financial position, results of operations, or cash flows, it cannot predict what new or revised claims or litigation might be asserted or what information might come to light and can, therefore, give no assurances regarding the ultimate outcome of asbestos related litigation.

The Company is party to various other claims, legal proceedings, and investigations that arise in the ordinary course of business, including U.S. Government investigations that could result in administrative, civil, or criminal proceedings involving the Company. The Company is a contractor with the U.S. Government, and such proceedings can therefore include False Claims Act allegations against the Company. Although the Company believes that the resolution of these other claims, legal proceedings, and investigations will not have a material effect on its condensed consolidated financial position, results of operations, or cash flows, the Company cannot predict what new or revised claims or litigation might be asserted or what information might come to light and can, therefore, give no assurances regarding the ultimate outcome of these matters.

10. COMMITMENTS AND CONTINGENCIES

Contract Performance Contingencies - Contract profit margins may include estimates of revenues for matters on which the customer and the Company have not reached agreement, such as settlements in the process of negotiation, contract changes, claims, and requests for equitable adjustment for unanticipated contract costs. These estimates are based upon management's best assessment of the underlying causal events and circumstances and recognized to the extent of expected recovery based upon contractual entitlements and the probability of successful negotiation with the customer. The Company believes its outstanding customer settlements will be resolved without material impact to its financial position, results of operations, or cash flows.

Environmental Matters - The estimated cost to complete environmental remediation is accrued when it is probable that the Company will incur such costs in the future to address environmental conditions at currently or formerly owned or leased operating facilities, or at sites where it has been named a Potentially Responsible Party by the Environmental Protection Agency or similarly designated by another environmental agency, and the related costs can be estimated by management. These accruals do not include any litigation costs related to environmental matters, nor do they include amounts recorded as asset retirement obligations. Management estimates that as of March 31, 2024, the probable estimable future cost for environmental remediation was not material. Although management cannot predict whether new information gained as remediation progresses or the Company incurs additional remediation obligations will materially affect the estimated liability accrued, management does not believe that future remediation expenditures will have a material effect on the Company's consolidated financial position, results of operations, or cash flows.

Financial Arrangements - In the ordinary course of business, HII uses letters of credit issued by commercial banks to support certain leases, insurance policies, and contractual performance obligations, as well as surety bonds issued by insurance companies principally to support the Company's self-insured workers' compensation plans. As of March 31, 2024, the Company had $12 million in issued but undrawn letters of credit and $360 million of surety bonds outstanding.

U.S. Government Claims - From time to time, the U.S. Government communicates to the Company potential claims, disallowed costs, and penalties concerning prior costs incurred by the Company with which the U.S. Government disagrees. When such preliminary findings are presented, the Company and U.S. Government representatives engage in discussions, from which the Company evaluates the merits of the claims and assesses the amounts being questioned. Although the Company believes that the resolution of any of these matters will not have a material effect on its consolidated financial position, results of operations, or cash flows, it cannot predict the ultimate outcome of these matters.

Other Matters - The Company has been in negotiations with a Mission Technologies customer since January 2023 to address issues related to a manufacturing contract, and the parties reached an agreement to settle the matter. The Company has recorded losses relating to the contract that were not material to the Company's consolidated financial position, results of operations, or cash flows.

The Company previously disclosed an issue regarding the degree of corrosion of certain steel plates used to fabricate Friedman (NSC 11). The Company’s expectation regarding the resolution of the matter with the customer is included in contract cost and profit estimates. Those estimates include management's best assessment of the underlying causal events, contractual entitlements, and the probability of successful resolution with the customer. The Company does not expect the final resolution of the matter to have a material impact to the Company's consolidated financial position, results of operations, or cash flows.

Collective Bargaining Agreements - Of the Company's more than 44,000 employees, approximately 45% are covered by a total of nine collective bargaining agreements and one site stabilization agreement. The Company believes its relationship with its employees is satisfactory.

11. EMPLOYEE PENSION AND OTHER POSTRETIREMENT BENEFITS

The Company provides eligible employees defined benefit pension plans, defined contribution benefit plans, and other postretirement benefit plans.

The costs of the Company's defined benefit pension plans and other postretirement benefit plans for the three months ended March 31, 2024 and 2023, were as follows:

						Three Months Ended March 31
						Pension Benefits												Other Benefits
($ in millions)						2024						2023						2024						2023
Components of net periodic benefit cost
Service cost						$	27					$	28					$	1					$	1
Interest cost						80						86						5						5
Expected return on plan assets						(134)						(132)						—						—
Amortization of prior service cost (credit)						4						4						(1)						(1)
Amortization of net actuarial loss (gain)						5						4						(3)						(3)
Net periodic benefit (income) cost						$	(18)					$	(10)					$	2					$	2

The Company made the following contributions to its defined benefit pension plans and other postretirement benefit plans for the three months ended March 31, 2024 and 2023:

						Three Months Ended March 31
($ in millions)						2024						2023
Pension plans
Discretionary
Qualified						$	—					$	—
Non-qualified						3						2
Other benefit plans						7						8
Total contributions						$	10					$	10

As of March 31, 2024, the Company anticipates no further significant cash contributions to its qualified defined benefit pension plans in 2024.

12. STOCK COMPENSATION PLANS

During the three months ended March 31, 2024 and 2023, the Company issued new stock awards as follows:

Restricted Performance Stock Rights - For the three months ended March 31, 2024, the Company granted approximately 0.1 million RPSRs at a weighted average share price of $288.33. These rights are subject to cliff vesting on December 31, 2026. For the three months ended March 31, 2023, the Company granted approximately 0.1 million RPSRs at a weighted average share price of $215.20. These rights are subject to cliff vesting on December 31, 2025. All of the RPSRs are subject to the achievement of performance-based targets at the end of the respective vesting periods and will ultimately vest between 0% and 200% of grant date value.

Restricted Stock Rights - For the three months ended March 31, 2024, the Company granted approximately 0.1 million compensation RSRs at a weighted average share price of $288.33. These rights vest 33 1/3% upon each of the first, second, and third anniversaries of the grant date. No compensation RSRs were granted for the three months ended March 31, 2023.

Retention Restricted Stock Rights - Retention stock awards are granted to key employees primarily to ensure business continuity. For the three months ended March 31, 2024, the Company granted approximately 1,200 retention RSRs at a weighted average share price of $288.53, with cliff vesting one to two years from the grant date. For the three months ended March 31, 2023, the Company granted approximately 5,000 retention RSRs at a weighted average share price of $211.66, with cliff vesting two to three years from the grant date.

The Company also received transfers of stock awards from employees in satisfaction of tax withholding obligations associated with the vesting of stock awards during the period. Because the stock awards are surrendered in lieu of payments of cash to settle tax obligations and the stock is not issued, the Company does not account for these transfers as treasury stock.

The following table summarizes the status of the Company's outstanding stock awards as of March 31, 2024:

						Stock Awards (in thousands)						Weighted-Average Grant Date Fair Value						Weighted-Average Remaining Contractual Term (in years)
Total stock awards						545						$	221.58					1.4

Compensation Expense

The Company recorded stock-based compensation for the value of awards granted to Company employees and non-employee members of the board of directors of $14 million and $12 million for the three months ended March 31, 2024 and 2023, respectively.

The Company recorded tax benefits related to stock awards of $3 million and $2 million for the three months ended March 31, 2024 and 2023, respectively. The Company recognized tax benefits associated with the issuance of stock in settlement of stock awards of $8 million and $3 million for the three months ended March 31, 2024 and 2023, respectively.

Unrecognized Compensation Expense

As of March 31, 2024, the Company had $21 million of unrecognized compensation expense associated with RSRs granted in 2024, 2023, and 2022, which will be recognized over a weighted average period of approximately 1.8 years, and $51 million of unrecognized compensation expense associated with RPSRs granted in 2024, 2023, and 2022, which will be recognized over a weighted average period of 1.6 years.