Fair Value of Financial Instruments - Fair Value Measured on a Recurring Basis Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	$ (4,155)	$ (6,012)	$ (6,472)	$ (4,458)
Items Included in Net Income	(2,116)	64	(500)	(1,483)
Gains (Losses) in OCI and Other	(4)	(2)	17	(11)
Issuances, Sales, Maturities, Settlements, Calls, Net	475	343	1,069	414
Transfers Into or Out of Level 3, Net	107	(159)	193	(228)
Ending Fair Value	(5,693)	(5,766)	(5,693)	(5,766)
Corporate bonds | Fixed maturity AFS securities, at fair value
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	2,974	2,489	2,865	2,497
Items Included in Net Income	(24)	0	(37)	2
Gains (Losses) in OCI and Other	5	(8)	6	(18)
Issuances, Sales, Maturities, Settlements, Calls, Net	32	192	131	214
Transfers Into or Out of Level 3, Net	89	(92)	111	(114)
Ending Fair Value	3,076	2,581	3,076	2,581
State and municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value				5
Items Included in Net Income				0
Gains (Losses) in OCI and Other				0
Issuances, Sales, Maturities, Settlements, Calls, Net				0
Transfers Into or Out of Level 3, Net				(5)
Ending Fair Value		0		0
RMBS | Fixed maturity AFS securities, at fair value
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	19	12	12	13
Items Included in Net Income	0	0	0	0
Gains (Losses) in OCI and Other	0	0	0	(1)
Issuances, Sales, Maturities, Settlements, Calls, Net	67	6	74	6
Transfers Into or Out of Level 3, Net	(7)	0	(7)	0
Ending Fair Value	79	18	79	18
CMBS | Fixed maturity AFS securities, at fair value
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	30	8	8	8
Items Included in Net Income	0	0	0	0
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	18	15	40	15
Transfers Into or Out of Level 3, Net	(7)	0	(7)	0
Ending Fair Value	41	23	41	23
ABS | Fixed maturity AFS securities, at fair value
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	2,631	1,692	2,099	1,484
Items Included in Net Income	0	0	(21)	0
Gains (Losses) in OCI and Other	(11)	7	7	5
Issuances, Sales, Maturities, Settlements, Calls, Net	419	365	897	566
Transfers Into or Out of Level 3, Net	(39)	(67)	18	(58)
Ending Fair Value	3,000	1,997	3,000	1,997
Hybrid and redeemable preferred securities | Fixed maturity AFS securities, at fair value
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	81	51	73	48
Items Included in Net Income	0	0	0	0
Gains (Losses) in OCI and Other	0	(1)	0	2
Issuances, Sales, Maturities, Settlements, Calls, Net	1	0	19	0
Transfers Into or Out of Level 3, Net	10	0	0	0
Ending Fair Value	92	50	92	50
Trading securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	287	271	265	284
Items Included in Net Income	3	0	4	0
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	(1)	2	3	(11)
Transfers Into or Out of Level 3, Net	7	0	24	0
Ending Fair Value	296	273	296	273
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	35	39	34	42
Items Included in Net Income	(2)	0	(8)	(3)
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	(4)	(1)	3	(1)
Transfers Into or Out of Level 3, Net	54	0	54	0
Ending Fair Value	83	38	83	38
Mortgage loans on real estate
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	232	289	232	288
Items Included in Net Income	(1)	4	(2)	4
Gains (Losses) in OCI and Other	2	0	4	1
Issuances, Sales, Maturities, Settlements, Calls, Net	(1)	(35)	(2)	(35)
Transfers Into or Out of Level 3, Net	0	0	0	0
Ending Fair Value	232	258	232	258
Other investments
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	15		23
Items Included in Net Income	0		0
Gains (Losses) in OCI and Other	0		0
Issuances, Sales, Maturities, Settlements, Calls, Net	9		1
Transfers Into or Out of Level 3, Net	0		0
Ending Fair Value	24		24
Derivative investments
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value		1	(136)	36
Items Included in Net Income		(7)	21	5
Gains (Losses) in OCI and Other		0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net		(2)	0	2
Transfers Into or Out of Level 3, Net		0	0	(51)
Ending Fair Value	(115)	(8)	(115)	(8)
Ceded MRBs | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	2	2	2	2
Items Included in Net Income	0	0	0	0
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	0	0	0	0
Transfers Into or Out of Level 3, Net	0	0	0	0
Ending Fair Value	2	2	2	2
Ceded MRBs | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	(314)	(360)	(381)	(239)
Items Included in Net Income	(27)	16	40	(105)
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	0	0	0	0
Transfers Into or Out of Level 3, Net	0	0	0	0
Ending Fair Value	(341)	(344)	(341)	(344)
Indexed annuity ceded embedded derivatives | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	1,092	973	1,115	940
Items Included in Net Income	73	11	50	44
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	71	(17)	71	(17)
Transfers Into or Out of Level 3, Net	0	0	0	0
Ending Fair Value	1,236	967	1,236	967
RILA, fixed indexed annuity and IUL contracts | Policyholder Account Balances
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	(10,807)	(10,896)	(12,449)	(9,077)
Items Included in Net Income	(2,146)	(339)	(472)	(2,015)
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	(136)	(182)	(168)	(325)
Transfers Into or Out of Level 3, Net	0	0	0	0
Ending Fair Value	(13,089)	(11,417)	(13,089)	(11,417)
Reinsurance-related embedded derivatives
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	(323)	(583)	(234)	(789)
Items Included in Net Income	14	379	(75)	585
Gains (Losses) in OCI and Other	0	0	0	0
Issuances, Sales, Maturities, Settlements, Calls, Net	0	0	0	0
Transfers Into or Out of Level 3, Net	0	0	0	0
Ending Fair Value	(309)	$ (204)	(309)	$ (204)
Derivative liabilities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Beginning Fair Value	(109)
Items Included in Net Income	(6)
Gains (Losses) in OCI and Other	0
Issuances, Sales, Maturities, Settlements, Calls, Net	0
Transfers Into or Out of Level 3, Net	0
Ending Fair Value	$ (115)		$ (115)