CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Change in operating assets and liabilities:
Accrued investment income	$ (132)	$ (99)	$ (111)
Premiums receivable and other reinsurance balances	(397)	(537)	(249)
Deferred policy acquisition costs	(322)	(490)	(311)
Reinsurance ceded receivable balances	231	(209)	61
Future policy benefits, other policy claims and benefits and other reinsurance balances	8,811	4,142	793
Deferred income taxes	(61)	211	67
Increase Decrease In Funds Withheld Net Of Reinsurance Recoverable And Deposit Receivable	(123)		(63)
Decrease In Funds Withheld Net Of Reinsurance Recoverable And Deposit Receivable		49
Other assets and other liabilities, net	257	68	255
Amortization of net investment premiums, discounts and other	(214)	(127)	(71)
(Income) loss from limited partnerships and real estate joint ventures	(96)	(181)	(331)
Investment related (gains) losses, net	745	481	539
Increase (Decrease) in Future Policy Benefit Reserves	(32)	(62)	291
Market Risk Benefit, Increase (Decrease) from Equity Market Change	(44)	(10)	10
Depreciation and amortization expense	46	41	38
Gain on sale of businesses	0	0	2
Other, net	(16)	(135)	(90)
Net cash provided by operating activities	9,370	4,044	1,343
Cash flows from investing activities
Sales of fixed maturity securities available-for-sale	28,153	8,195	10,558
Principal payments on mortgage loans	1,219	967	906
Proceeds from Sale of Available-for-sale Securities, Equity	7	1	7
Proceeds from Sale and Collection of Mortgage Notes Receivable	640	436	963
Payments to Acquire Available-for-sale Securities	(40,662)	(12,647)	(16,531)
Payments to Acquire Available-for-sale Securities, Equity	(6)	(5)	(15)
Purchases of fixed maturity securities available-for-sale	(1,906)	(1,280)	(1,314)
Withdrawals From Funds Withheld At Interest			(36)
Deposits in (withdrawals from) funds withheld at interest	274	352
Proceeds from Real Estate and Real Estate Joint Ventures	258	474	710
Payments to Acquire Real Estate and Real Estate Joint Ventures	(578)	(551)	(700)
Proceeds from Sale of Short-Term Investments	772	353	317
Payments to Acquire Short-Term Investments	(1,017)	(601)	(528)
Proceeds from Maturities, Prepayments and Calls of Short-Term Investments	343	187	131
Payments for (Proceeds from) Productive Assets	(28)	102	(140)
Proceeds from Divestiture of Businesses, Net of Cash Divested	0	0	7
Change in other invested assets	(14)	(49)	(23)
Net cash used in investing activities	(12,545)	(4,066)	(5,688)
Cash flows from financing activities
Dividends to stockholders	(229)	(219)	(205)
Repayment of collateral finance and securitization notes	0	0	(181)
Proceeds from long-term debt issuance, net	640	890	690
Principal payments of long-term debt	(28)	(428)	(403)
Purchases of treasury stock	(27)	(227)	(81)
Change in cash collateral for derivative positions and other arrangements	187	603	230
Decrease In Reinsurance Deposits Financing Activities	268	227	(44)
Deposits on investment-type policies and contracts	7,581	2,860	5,705
Withdrawals on investment-type policies and contracts	(4,731)	(3,628)	(1,365)
Proceeds from Noncontrolling Interests	0	0	90
Net cash provided by financing activities	3,661	78	4,436
Effect of exchange rate changes on cash	(130)	(13)	(112)
Change in cash and cash equivalents	356	43	(21)
Cash and cash equivalents, beginning of period	2,970	2,927
Cash and cash equivalents, end of period	3,326	2,970	2,927
Change in cash and cash equivalents	3,326	2,970	2,927
Supplemental disclosures of cash flow information:
Interest paid	213	217	163
Income taxes paid, net of refunds	78	298	129
Non-cash investing activities:
Transfer of invested assets	9,642	2,006	618
Non-cash deposits on reinsurance	637	2,792	0
Assets disposed, net of cash transferred	0	0	(6)
Liabilities disposed	$ 0	$ 0	$ 1