Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities:
Net income	$ 586,000,000	$ 387,000,000	$ 333,000,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Future policy benefits, claims reserves and interest credited	577,000,000	538,000,000	449,000,000
Deferred income tax (benefit) expense	0	(1,000,000)	(50,000,000)
Net (gains) losses	44,000,000	134,000,000	429,000,000
(Gains) losses on limited partnerships/corporations	12,000,000	(29,000,000)	(34,000,000)
Deferred policy acquisition costs, value of business acquired and sales inducements, net	13,000,000	(17,000,000)	(23,000,000)
Change in:
Premium receivable and reinsurance recoverable	313,000,000	205,000,000	200,000,000
Other receivables and asset accruals	(62,000,000)	4,000,000	9,000,000
Due to/from affiliates	(73,000,000)	30,000,000	48,000,000
Other payables and accruals	(22,000,000)	(25,000,000)	(147,000,000)
Other, net	(10,000,000)	2,000,000	(13,000,000)
Net cash provided by operating activities	1,378,000,000	1,320,000,000	1,315,000,000
Proceeds from the sale, maturity, disposal or redemption of:
Fixed maturities	4,586,000,000	4,781,000,000	5,351,000,000
Equity securities	0	64,000,000	5,000,000
Mortgage loans on real estate	627,000,000	451,000,000	597,000,000
Limited partnerships/corporations	82,000,000	102,000,000	82,000,000
Acquisition of:
Fixed maturities	(4,245,000,000)	(3,191,000,000)	(6,084,000,000)
Mortgage loans on real estate	(243,000,000)	(296,000,000)	(588,000,000)
Limited partnerships/corporations	(246,000,000)	(113,000,000)	(179,000,000)
Derivatives, net	86,000,000	(65,000,000)	(264,000,000)
Short-term investments, net	66,000,000	162,000,000	(248,000,000)
Short-term loan to affiliate, net	195,000,000	(295,000,000)	130,000,000
Increase (Decrease) in Collateral Held under Securities Lending	155,000,000	78,000,000	21,000,000
Receipts on deposit asset contracts	204,000,000	240,000,000	119,000,000
Other, net	0	42,000,000	28,000,000
Net cash provided by (used in) investing activities	1,267,000,000	1,934,000,000	(544,000,000)
Cash Flows from Financing Activities:
Deposits received for investment contracts	1,992,000,000	1,559,000,000	4,388,000,000
Maturities and withdrawals from investment contracts	(3,847,000,000)	(4,536,000,000)	(4,530,000,000)
Dividends paid and distributions of capital	(473,000,000)	(310,000,000)	(857,000,000)
Proceeds from (Payments for) Other Financing Activities	13,000,000	(1,000,000)	12,000,000
Net cash (used in) financing activities	(2,315,000,000)	(3,288,000,000)	(987,000,000)
Net increase (decrease) in cash and cash equivalents	330,000,000	(34,000,000)	(216,000,000)
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents	(516,000,000)	(186,000,000)	(220,000,000)	$ (436,000,000)
Supplemental disclosure of cash flow information:
Income taxes paid (received), net	57,000,000	(6,000,000)	$ 46,000,000
Contribution of capital	$ 0	$ 0