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Financial Instruments and Fair Value Measurements - Summary of Unrealized Gains (Losses) in Foreign Currency, Derivative and Other Gains (Losses) and Other Income (Expense), Net on Remeasurement of Unhedged Portion of Foreign Denominated Debt and Accrued Interest (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Unrealized gains (losses) on the unhedged portion	$ (5)	$ (22)

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- Definition

Unrealized gains losses on unhedged portion of foreign currency debt.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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