Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - 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]
Investments with no credit impairment, tax	$ (37)	$ 10	$ (100)	$ (10)
Investments with credit impairment, tax	$ (10)	$ 6	$ (19)	$ 5