Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 7,514	$ 8,060	$ 3,135
Other comprehensive (loss) income:
Net unrealized debt securities (losses) gains, net of tax	(87)	(42)	32
Foreign currency translation adjustments, net of hedges and tax	(230)	(163)	(40)
Net unrealized pension and other postretirement benefits, net of tax	52	155	(150)
Other comprehensive (loss) income	(265)	(50)	(158)
Comprehensive income	$ 7,249	$ 8,010	$ 2,977