Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 2,504	$ 1,819	$ 2,371
Other comprehensive income (loss) (“OCI”):
Change in net unrealized gain (loss) on fixed maturities, available-for-sale ("AFS")	1,112	(4,225)	(1,224)
Change in unrealized losses on fixed maturities for which an allowance for credit losses ("ACL") has been recorded	(1)	(5)	0
Change in net gain on cash flow hedging instruments	(19)	34	(6)
Change in foreign currency translation adjustments	6	(10)	(2)
Change in liability for future policy benefits adjustments	(10)	94	27
Change in pension and other postretirement plan adjustments	(96)	143	228
OCI, net of tax	992	(3,969)	(977)
Comprehensive income (loss)	$ 3,496	$ (2,150)	$ 1,394