Basis of Presentation	3 Months Ended
Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries that are majority-owned or otherwise controlled by the Company, and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) and should be read in conjunction with the information contained in the Company's Annual Report on Form 10-K for the year ended March 31, 2025. The interim period unaudited condensed consolidated financial statements are presented as described below. Certain information and disclosures normally required for annual financial statements have been condensed or omitted pursuant to U.S. GAAP and SEC rules and regulations. In the opinion of management, all adjustments considered necessary for fair presentation of the results of the interim periods presented have been included. The Company’s fiscal year ends on March 31 and, unless otherwise noted, references to fiscal year or fiscal are for fiscal years ended March 31. The results of operations for the three months ended June 30, 2025 are not necessarily indicative of results to be expected for the full fiscal year. Certain amounts reported in the Company's prior fiscal year condensed consolidated financial statements have been reclassified to conform to the current year presentation, including the reclassification of interest income for fiscal 2025 from “Other income (loss), net” into “Interest expense, net” on the condensed consolidated statement of operations. There are no changes to the Company’s financial position or results of operations as a result of this reclassification. Investments As of June 30, 2025 and March 31, 2025, respectively, the total of equity and other investments related to unconsolidated entities included in other long term assets of the Company’s condensed consolidated balance sheet were $105 million and $90 million. Accounting Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, as well as the disclosure of contingent assets and liabilities at the date of the financial statements or during the relevant reporting periods (as applicable). The Company bases its estimates on historical and forward-looking assumptions that it believes are reasonable and appropriate. Actual results may differ materially from those estimates. Estimates are used for, but not limited to, revenue recognition including the profitability of long-term contracts and cost accruals, the provision for claimed costs, fair value measurements, the valuation and expected lives of acquired intangible assets, incentive compensation, income taxes including reserves for uncertain tax positions, postretirement obligations and contingencies. See Note 2, “Summary of Significant Accounting Policies” to the Company’s consolidated financial statements included in the Annual Report on Form 10-K for the year ended March 31, 2025 for further details on significant estimates and assumptions used. Recently Issued Accounting Pronouncements Not Yet Adopted In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures. The standard includes amendments that enhance annual income tax disclosures, primarily through standardization and disaggregation of rate reconciliation categories and income taxes paid by jurisdiction. The Company is required to adopt this standard in its Fiscal 2026 Form 10-K, and does not expect it to have a material impact on its consolidated financial statements and related disclosures. In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses, which is intended to enhance transparency into the nature and function of certain expenses as specified by the ASU. The guidance does not change the expense captions an entity presents on the face of the income statement; rather, it requires public business entities to provide disaggregated disclosures of certain expense captions in the notes to the financial statements. The ASU is effective for annual periods beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027, and can be applied retrospectively or prospectively. The Company is currently assessing the impact of this update, however, its adoption will affect only the Company’s disclosures, with no impacts to its financial conditions or results of operations.

The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries that are majority-owned or otherwise controlled by the Company, and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) and should be read in conjunction with the information contained in the Company's Annual Report on Form 10-K for the year ended March 31, 2025. The interim period unaudited condensed consolidated financial statements are presented as described below. Certain information and disclosures normally required for annual financial statements have been condensed or omitted pursuant to U.S. GAAP and SEC rules and regulations. In the opinion of management, all adjustments considered necessary for fair presentation of the results of the interim periods presented have been included. The Company’s fiscal year ends on March 31 and, unless otherwise noted, references to fiscal year or fiscal are for fiscal years ended March 31. The results of operations for the three months ended June 30, 2025 are not necessarily indicative of results to be expected for the full fiscal year.

Certain amounts reported in the Company's prior fiscal year condensed consolidated financial statements have been reclassified to conform to the current year presentation, including the reclassification of interest income for fiscal 2025 from “Other income (loss), net” into “Interest expense, net” on the condensed consolidated statement of operations. There are no changes to the Company’s financial position or results of operations as a result of this reclassification.

As of June 30, 2025 and March 31, 2025, respectively, the total of equity and other investments related to unconsolidated entities included in other long term assets of the Company’s condensed consolidated balance sheet were $105 million and $90 million.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, as well as the disclosure of contingent assets and liabilities at the date of the financial statements or during the relevant reporting periods (as applicable). The Company bases its estimates on historical and forward-looking assumptions that it believes are reasonable and appropriate. Actual results may differ materially from those estimates. Estimates are used for, but not limited to, revenue recognition including the profitability of long-term contracts and cost accruals, the provision for claimed costs, fair value measurements, the valuation and expected lives of acquired intangible assets, incentive compensation, income taxes including reserves for uncertain tax positions, postretirement obligations and contingencies. See Note 2, “Summary of Significant Accounting Policies” to the Company’s consolidated financial statements included in the Annual Report on Form 10-K for the year ended March 31, 2025 for further details on significant estimates and assumptions used.

In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures. The standard includes amendments that enhance annual income tax disclosures, primarily through standardization and disaggregation of rate reconciliation categories and income taxes paid by jurisdiction. The Company is required to adopt this standard in its Fiscal 2026 Form 10-K, and does not expect it to have a material impact on its consolidated financial statements and related disclosures.

In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses, which is intended to enhance transparency into the nature and function of certain expenses as specified by the ASU. The guidance does not change the expense captions an entity presents on the face of the income statement; rather, it requires public business entities to provide disaggregated disclosures of certain expense captions in the notes to the financial statements. The ASU is effective for annual periods beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027, and can be applied retrospectively or prospectively. The Company is currently assessing the impact of this update, however, its adoption will affect only the Company’s disclosures, with no impacts to its financial conditions or results of operations.