Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 2,507	$ 2,451	$ 7,959	$ 6,441
Other comprehensive income (loss):
Net unrealized debt securities gains (losses), net of tax	4	14	8	34
Foreign currency translation adjustments, net of hedges and tax	1	(110)	(135)	(57)
Net unrealized pension and other postretirement benefits, net of tax	0	4	4	57
Other comprehensive income (loss)	5	(92)	(123)	34
Comprehensive income	$ 2,512	$ 2,359	$ 7,836	$ 6,475