Segment Information - Special Item Charges (Benefits) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Pre-tax
Strategic optimization program (largely Selling, general and administrative expenses)	$ 129	$ 0	$ 344	$ 0
Integration and transaction-related costs (Selling, general and administrative expenses)	74	63	290	100
(Gain) loss on sale of businesses	0	0	(41)	19
Deferred tax expenses, net (Income taxes, less amount attributable to noncontrolling interests)	0	0	0	0
Total impact from special items	203	63	593	119
After-tax
Strategic optimization program (largely Selling, general and administrative expenses)	98	0	261	0
Integration and transaction-related costs (Selling, general and administrative expenses)	56	47	220	76
(Gain) loss on sale of businesses	0	0	(115)	(43)
Deferred tax expenses, net (Income taxes, less amount attributable to noncontrolling interests)	17	17	34	34
Total impact from special items	$ 171	$ 64	$ 400	$ 67