Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,004	$ 1,779
Other comprehensive (loss) income, net of tax:
Change in net unrealized losses/gains on investments	427	(1,069)
Change in non-credit component of impairment losses on investments	(2)	(1)
Change in net unrealized gains/losses on cash flow hedges	11	3
Change in net periodic pension and postretirement costs	2	7
Change in future policy benefits	2	9
Foreign currency translation adjustments	2	(3)
Other comprehensive income (loss)	442	(1,054)
Net (income) loss attributable to noncontrolling interests	(15)	10
Other comprehensive (income) loss attributable to noncontrolling interests	(2)	5
Total shareholders’ comprehensive income	$ 2,429	$ 740