Derivatives - Income Location and Impact of Cash Flow (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Total consolidated financial statement line item amount	$ 3,792	$ 3,647	$ 10,916	$ 10,703
Other expense (income), net
Derivative Instruments, Gain (Loss) [Line Items]
Total consolidated financial statement line item amount	300	(405)	378	(323)
Foreign currency forward/option contracts | Derivatives not designated as hedging instruments | Cost of sales
Information regarding derivatives not designated as hedging instruments:
Foreign currency forward/option contracts	2	0	(47)	7
Foreign currency forward/option contracts | Derivatives not designated as hedging instruments | Other expense (income), net
Information regarding derivatives not designated as hedging instruments:
Foreign currency forward/option contracts	6	(13)	(93)	(7)
Cash Flow Hedge | Foreign currency forward/option contracts | Cost of sales
(Gain) or loss on cash flow hedging relationships:
Amount of (gain) or loss reclassified from accumulated other comprehensive income (loss) into income	2	(23)	(39)	(84)
Cash Flow Hedge | Foreign currency forward/option contracts | Other expense (income), net
(Gain) or loss on cash flow hedging relationships:
Amount of (gain) or loss reclassified from accumulated other comprehensive income (loss) into income	0	0	0	0
Cash Flow Hedge | Interest rate contracts | Cost of sales
(Gain) or loss on cash flow hedging relationships:
Amount of (gain) or loss reclassified from accumulated other comprehensive income (loss) into income	0	0	0	0
Cash Flow Hedge | Interest rate contracts | Other expense (income), net
(Gain) or loss on cash flow hedging relationships:
Amount of (gain) or loss reclassified from accumulated other comprehensive income (loss) into income	2	2	6	6
Fair Value Hedge | Interest rate contracts | Cost of sales
(Gain) or loss on fair value hedging relationships:
Hedged items	0	0	0	0
Fair Value Hedge | Interest rate contracts | Other expense (income), net
(Gain) or loss on fair value hedging relationships:
Hedged items	32	29	57	20
Fair Value Hedge | Interest rate contracts | Derivatives designated as hedging instruments | Cost of sales
(Gain) or loss on fair value hedging relationships:
Derivatives designated as hedging instruments	0	0	0	0
Fair Value Hedge | Interest rate contracts | Derivatives designated as hedging instruments | Other expense (income), net
(Gain) or loss on fair value hedging relationships:
Derivatives designated as hedging instruments	$ (32)	$ (29)	$ (57)	$ (20)