CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 761	$ 437
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(46)	(1)
Net unrealized gains (losses) on securities	(853)	(340)
Net unrealized gains (losses) on derivatives	1	0
Defined benefit plans	0	29
Total other comprehensive income (loss), net of tax	(898)	(312)
Total comprehensive income	$ (137)	$ 125