Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,174	$ 1,964	$ 3,990	$ 4,063
Other comprehensive income (loss):
Net unrealized debt securities gains (losses), net of tax	1	(25)	20	(53)
Foreign currency translation adjustments, net of hedges and tax	25	(157)	53	(177)
Net unrealized pension and other postretirement benefits, net of tax	(4)	12	53	32
Other comprehensive income (loss)	22	(170)	126	(198)
Comprehensive income	$ 2,196	$ 1,794	$ 4,116	$ 3,865