Financial Instruments - Location and Amount of Pretax (Gains) Losses of Derivatives (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Sales	$ 15,035	$ 14,593	$ 29,522	$ 30,494
Other (income) expense, net	172	438	259	1,148
Other comprehensive income (loss)	(17)	42	(132)	102
Interest rate swap contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI on derivatives	13	0	13	(1)
Amount of gain recognized in Other (income) expense, net on derivatives	0	0	(1)	(1)
Interest rate swap contracts | Other (income) expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	0	(4)	0	(14)
Derivatives designated as hedging instruments	0	1	0	4
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized in OCI on derivatives	194	403	128	551
Increase in Sales as a result of AOCL reclassifications	(24)	(172)	(125)	(239)
Foreign exchange contracts | Reclassification out of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Derivative Instruments, Gain (Loss) [Line Items]
Sales	$ 24	$ 172	$ 125	$ 239