Financial Instruments - Additional Information (Detail) $ in Millions	6 Months Ended
Sep. 30, 2023 USD ($) swap	Dec. 31, 2022 USD ($)
Derivative [Line Items]
Fair value of derivative liabilities	$ 126
Revolving Credit Facility \| Euro Interbank Offered Rate
Derivative [Line Items]
Applicable margin on variable rate, percent	0.10%
Cross currency swaps
Derivative [Line Items]
Derivative instruments outstanding	$ 1,400	$ 1,400
Fair value of derivative liabilities	89	75
2022 Cross Currency Swaps \| Net Investment Hedging
Derivative [Line Items]
Derivative instruments outstanding	1,400
Designated as Hedging Instrument
Derivative [Line Items]
Fair value of derivative liabilities	89
Designated as Hedging Instrument \| Euro Notes
Derivative [Line Items]
Hedged liability, debt	1,361
Designated as Hedging Instrument \| Cross currency swaps
Derivative [Line Items]
Fair value of derivative liabilities	$ 89	$ 75
Designated as Hedging Instrument \| 2022 Cross Currency Swaps
Derivative [Line Items]
Number of Foreign Currency Derivatives Held \| swap	12
Derivative Assets (Liabilities), at Fair Value, Net	$ 89

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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Fair value, before 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. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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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.

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Nominal or face amount used to calculate payment on derivative.

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Amount of liability hedged in fair value hedging relationship.

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Number of foreign currency exchange rate derivatives held by the entity at the reporting date.

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