Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Investments with no credit impairment, tax	$ (121)	$ (31)	$ 20
Investments with credit impairment, tax	$ (20)	$ 2	$ (4)