Segment Information - Special Item Charges (Benefits) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Pre-tax
Integration and transaction-related costs (Selling, general and administrative expenses)	$ 216	$ 37
Strategic optimization program (primarily Selling, general and administrative expenses)	215	0
Deferred tax expenses, net (Income taxes, less amount attributable to noncontrolling interests)	0	0
(Gain) loss on sale of businesses	(41)	19
Total impact from special items	390	56
After-tax
Integration and transaction-related costs (Selling, general and administrative expenses)	164	29
Strategic optimization program (primarily Selling, general and administrative expenses)	163	0
Deferred tax expenses, net (Income taxes, less amount attributable to noncontrolling interests)	17	17
(Gain) loss on sale of businesses	(115)	(43)
Total impact from special items	$ 229	$ 3