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Income Taxes | 6 Months Ended
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Sep. 30, 2025
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The Company’s effective income tax rates were 24.9% and 24.0% for the three months ended September 30, 2025 and 2024, respectively, and 0.7% and 23.7% for the six months ended September 30, 2025 and September 30, 2024, respectively. Our effective tax rates for these periods differ from the federal statutory rate of 21.0% primarily due to the inclusion of state and foreign income taxes and permanent rate differences, which are predominantly related to certain executive compensation and the accrual of reserves for uncertain tax positions, offset by research and development tax credits, excess tax benefits for employee share-based compensation, and the Foreign Derived Intangible Income deduction. In addition, the fiscal year 2026 effective tax rate was also lower related to adjustments to the Company’s uncertain tax position reserves as outlined below. As of September 30, 2025 and March 31, 2025, the Company recorded $56 million and $142 million, respectively, of reserves for uncertain tax positions (“UTPs”) primarily related to research and development tax credits. The UTP reduction during the six months ended September 30, 2025 is primarily related to an $86 million adjustment from the completion of Internal Revenue Service (the “IRS”) examination procedures of the Company's amended federal income tax returns through fiscal year 2021 recorded in the first quarter. The Company also accrued $22 million of interest (net of tax effect) on the related long-term receivable for the refund requested in the amended returns. Due to the magnitude of the refund requested in the amended returns, the case will be referred to the Joint Committee on Taxation (the “JCT”) for further evaluation, as required by law for tax refunds or reductions exceeding $5 million. While the JCT has not yet reviewed this case, management does not anticipate that the resolution of this review will have a material adverse effect on the Company's financial position or results of operations. As of September 30, 2025 and March 31, 2025, the Company recorded long-term income tax receivables of $174 million, including interest, and $152 million, respectively, which represents the amended U.S. federal return refund claims related to the audits referenced above and remains classified as other long-term assets on the condensed consolidated balance sheet as the case is subject to JCT review. On July 4, 2025, the One Big Beautiful Bill Act (“OBBB”) was enacted in the U.S. The OBBB includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, restoration of favorable tax treatment for certain business provisions including the expensing of domestic research and development expenditures, and modifications to the international tax framework. The Company has incorporated the impact of the new legislation into its year-to-date effective tax rate and continues to assess the impact on the consolidated financial statements.

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