Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Cash Flows [Abstract]
Net cash provided by (used in) operating activities	$ 143	$ (595)
Cash flows from investing activities
Sales, maturities and repayments of fixed maturity securities	3,037	2,241
Sales, maturities and repayments of trading securities	6	0
Sales, maturities and repayments of equity securities	4	24
Sales, maturities and repayments of mortgage loans	447	281
Sales, maturities and repayments of limited partnerships and limited liability companies	87	78
Purchases of fixed maturity securities	(2,756)	(2,426)
Purchases of trading securities	(18)	0
Purchases of equity securities	(1)	(1)
Purchases of mortgage loans	(362)	(446)
Purchases of limited partnerships and limited liability companies	(65)	(79)
Cash received in connection with freestanding derivatives	3,343	3,561
Cash paid in connection with freestanding derivatives	(4,109)	(3,174)
Net change in policy loans	588	(318)
Net change in short-term investments	275	(85)
Net change in other invested assets	1	(201)
Net cash provided by (used in) investing activities	477	(545)
Cash flows from financing activities
Policyholder account balances: Deposits	5,018	7,696
Policyholder account balances: Withdrawals	(5,940)	(6,426)
Net change in payables for collateral under securities loaned and other transactions	19	(18)
Capital contribution	100	0
Financing element on certain derivative instruments and other derivative related transactions, net	(166)	(130)
Net cash provided by (used in) financing activities	(969)	1,122
Change in cash, cash equivalents and restricted cash	(349)	(18)
Cash, cash equivalents and restricted cash, beginning of period	4,592	3,165
Cash, cash equivalents and restricted cash, end of period	4,243	3,147
Supplemental disclosures of cash flow information
Net cash paid (received) for interest	34	34
Net cash paid (received) for income tax	$ 0	$ 1