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Derivatives (Tables) | 6 Months Ended
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Sep. 30, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Derivative Instruments | The following table presents the notional amounts of the Company’s outstanding derivative instruments:
|  | As of
(in millions) |  | September 30, 2025 |  | March 31, 2025
Designated as cash flow hedges |  |  |  |
Foreign currency forward contracts |  | $ | 417 |  |  | $ | 428 |
Non-designated hedges |  |  |  |
Foreign currency forward contracts |  | $ | — |  |  | $ | 5 |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value | The following table presents the fair value of the Company’s outstanding derivative instruments:
|  | Derivative Assets |  | Derivative Liabilities
|  | As of |  | As of
(in millions) |  | September 30, 2025 |  | March 31, 2025 |  | September 30, 2025 |  | March 31, 2025
Designated as cash flow hedges |  |  |  |  |  |  |  |
Foreign currency forward contracts |  | $ | 8 |  |  | $ | 7 |  |  | $ | 1 |  |  | $ | 2 |
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location | The following table presents net gains (losses) on foreign currency forward contracts designated as cash flow hedges:
|  | Three Months Ended September 30, |  | Six Months Ended September 30,
(in millions) |  | 2025 |  | 2024 |  | 2025 |  | 2024
Condensed Consolidated Statements of Comprehensive Income: |  |  |  |  |  |  |  |
Change in gains (losses) recognized in accumulated other comprehensive income (loss) on cash flow hedge derivatives |  | $ | (9) |  |  | $ | 29 |  |  | $ | 19 |  |  | $ | 25 |
(Gains) losses reclassified from accumulated other comprehensive income (loss) into income |  | (9) |  |  | (10) |  |  | (16) |  |  | (5) |
Income tax benefit (expense) on cash flow hedges |  | 4 |  |  | (5) |  |  | (1) |  |  | (5) |
Net change in fair value of the effective portion of designated cash flow hedges, net of tax (1) |  | $ | (14) |  |  | $ | 14 |  |  | $ | 2 |  |  | $ | 15 |
Condensed Consolidated Income Statements, before tax: |  |  |  |  |  |  |  |
Research and development |  | $ | 6 |  |  | $ | 6 |  |  | $ | 10 |  |  | $ | 3 |
Selling, general and administrative expenses |  | $ | 3 |  |  | $ | 4 |  |  | $ | 6 |  |  | $ | 2 |
(1) All amounts reported in accumulated other comprehensive income (loss) at the reporting date are expected to be reclassified into earnings within the next 12 months.

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- Definition Tabular disclosure for cash flow hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References No definition available. + Details
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