Accumulated Other Comprehensive (Loss) Income - Summary of Components of AOCI (Detail) $ in Millions	9 Months Ended
Sep. 30, 2026 USD ($)
Statement of Other Comprehensive Income
Beginning balance	$ 6,503
Ending balance	6,660
Income Taxes
Beginning balance	186
Other comprehensive income (loss) before reclassifications	(47)
Reclassification adjustments	(4)
Ending balance	135
Other comprehensive income (loss) before reclassifications	27
Reclassification adjustments	10
Foreign Currency Translation
Statement of Other Comprehensive Income
Beginning balance	(1,126)
Other comprehensive income (loss) before reclassifications	13
Reclassification adjustments	0
Ending balance	(1,113)
Derivative Instruments
Statement of Other Comprehensive Income
Beginning balance	(43)
Other comprehensive income (loss) before reclassifications	63
Reclassification adjustments	14
Ending balance	34
Defined Benefit Plans
Statement of Other Comprehensive Income
Beginning balance	40
Other comprehensive income (loss) before reclassifications	(2)
Reclassification adjustments	0
Ending balance	38
Total
Statement of Other Comprehensive Income
Beginning balance	(943)
Ending balance	$ (906)

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