Repositioning and Other Charges - Pretax Distribution of Total Net Repositioning (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Pretax Distribution Of Total Net Repositioning And Other Charges By Income Statement Classification [Line Items]
Total net repositioning and other charges	$ 17	$ (581)	$ 133	$ (516)
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold
Pretax Distribution Of Total Net Repositioning And Other Charges By Income Statement Classification [Line Items]
Total net repositioning and other charges	15	181	100	228
Income Statement Location [Axis]: us-gaap:OtherNonoperatingIncomeExpense
Pretax Distribution Of Total Net Repositioning And Other Charges By Income Statement Classification [Line Items]
Total net repositioning and other charges	0	(802)	0	(802)
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Pretax Distribution Of Total Net Repositioning And Other Charges By Income Statement Classification [Line Items]
Total net repositioning and other charges	$ 2	$ 40	$ 33	$ 58