Accumulated Other Comprehensive (Loss) Income - Summary of Components of AOCI (Detail) $ in Millions	6 Months Ended
Jun. 30, 2026 USD ($)
Statement of Other Comprehensive Income
Beginning balance	$ 6,503
Ending balance	6,171
Income Taxes
Beginning balance	186
Other comprehensive income (loss) before reclassifications	(26)
Reclassification adjustments	(3)
Ending balance	157
Other comprehensive income (loss) before reclassifications	(31)
Reclassification adjustments	10
Foreign Currency Translation
Statement of Other Comprehensive Income
Beginning balance	(1,126)
Other comprehensive income (loss) before reclassifications	(19)
Reclassification adjustments	0
Ending balance	(1,145)
Derivative Instruments
Statement of Other Comprehensive Income
Beginning balance	(43)
Other comprehensive income (loss) before reclassifications	15
Reclassification adjustments	13
Ending balance	(15)
Defined Benefit Plans
Statement of Other Comprehensive Income
Beginning balance	40
Other comprehensive income (loss) before reclassifications	(1)
Reclassification adjustments	0
Ending balance	39
Total
Statement of Other Comprehensive Income
Beginning balance	(943)
Ending balance	$ (964)

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