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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 |

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