Derivative Financial Instruments - Gross Notional Amounts and Fair Values for Currency Derivatives (Details) - USD ($) $ in Millions	Mar. 31, 2026	Mar. 31, 2025
Forward contracts to purchase
Derivative Instruments and Hedging Activities Disclosures
Fair value of foreign currency contracts outstanding, Assets	$ 4	$ 4
Fair value of foreign currency contracts outstanding, Liabilities	4	7
Forward contracts to sell
Derivative Instruments and Hedging Activities Disclosures
Fair value of foreign currency contracts outstanding, Assets	28	20
Fair value of foreign currency contracts outstanding, Liabilities	15	16
Designated as Hedging Instrument \| Forward contracts to purchase
Derivative Instruments and Hedging Activities Disclosures
Notional Amount	428	463
Designated as Hedging Instrument \| Forward contracts to sell
Derivative Instruments and Hedging Activities Disclosures
Notional Amount	1,576	1,970
United States Dollar \| Not Designated as Hedging Instrument \| Forward contracts to purchase
Derivative Instruments and Hedging Activities Disclosures
Notional Amount	638	511
United States Dollar \| Not Designated as Hedging Instrument \| Forward contracts to sell
Derivative Instruments and Hedging Activities Disclosures
Notional Amount	554	582
Balance Sheet Hedging \| Not Designated as Hedging Instrument \| Forward contracts to purchase
Derivative Instruments and Hedging Activities Disclosures
Derivative asset, current	0	1
Derivative liability, current	6	2
Balance Sheet Hedging \| Not Designated as Hedging Instrument \| Forward contracts to sell
Derivative Instruments and Hedging Activities Disclosures
Derivative asset, current	3	3
Derivative liability, current	$ 0	$ 1

Fair value of all asset derivatives designated as cash flow hedging instruments.

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Fair value of all liability derivatives designated as cash flow hedging instruments.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Nominal or face amount used to calculate payment on derivative.

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