Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 1,964	$ 2,280	$ 4,063	$ 4,515
Other comprehensive income (loss):
Net unrealized debt securities (losses) gains, net of tax	(25)	(11)	(53)	(23)
Foreign currency translation adjustments, net of hedges and tax	(157)	19	(177)	2
Net unrealized pension and other postretirement benefits, net of tax	12	9	32	35
Other comprehensive income (loss)	(170)	17	(198)	14
Comprehensive income	$ 1,794	$ 2,297	$ 3,865	$ 4,529