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Derivative Instruments - Narrative (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) counterparty | Mar. 31, 2024 USD ($)
Derivative [Line Items] |  |
Number of counterparties | counterparty | 3 |
Designated as Hedging Instrument |  |
Derivative [Line Items] |  |
Foreign currency cash flow hedge loss to be reclassified into earnings during next 12 months | $ 4 |
Not Designated as Hedging Instrument | Foreign currency forward contracts |  |
Derivative [Line Items] |  |
Notional amount of derivative | 1,900 | $ 1,500
Cash Flow Hedges | Designated as Hedging Instrument | Foreign currency forward contracts |  |
Derivative [Line Items] |  |
Notional amount of derivative | 668 | 885
Net Investment Hedging | Designated as Hedging Instrument | Foreign currency-denominated debt |  |
Derivative [Line Items] |  |
Notional amount of derivative | $ 702 | $ 702

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A + Details
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- Definition The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480870/815-30-50-1 + Details
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