Fair Value (Unobservable Input Reconciliation) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net Derivatives (2)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance, beginning of period	$ 11	$ 33	$ 18	$ 35
Total realized/unrealized gains (losses) included in net income (loss) (3) (4)	(1)	(5)	(3)	(5)
Total realized/unrealized gains (losses) included in AOCI	0	0	0	0
Purchases (5)	0	9	1	9
Sales (5)	0	0	0	0
Issuances (5)	0	0	0	0
Settlements (5)	0	0	0	0
Transfers into Level 3 (6)	0	0	0	0
Transfers out of Level 3 (6)	0	(10)	(6)	(12)
Balance, end of period	10	27	10	27
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period	(1)	(5)	(3)	(5)
Changes in unrealized gains (losses) included in OCI	0	0	0	0
Embedded Derivatives on Index-Linked Annuities
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance, beginning of period	(9,941)	(5,164)	(8,186)	(3,932)
Total realized/unrealized gains (losses) included in net income (loss) (3) (4)	(714)	(1,703)	(2,600)	(2,793)
Total realized/unrealized gains (losses) included in AOCI	0	0	0	0
Purchases (5)	0	0	0	0
Sales (5)	0	0	0	0
Issuances (5)	0	0	0	0
Settlements (5)	72	(19)	203	(161)
Transfers into Level 3 (6)	0	0	0	0
Transfers out of Level 3 (6)	0	0	0	0
Balance, end of period	(10,583)	(6,886)	(10,583)	(6,886)
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period	(881)	(1,802)	(2,921)	(2,968)
Changes in unrealized gains (losses) included in OCI	0	0	0	0
Corporate (1)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	1,267	1,936	1,320	1,787
Total realized/unrealized gains (losses) included in net income (loss) (3) (4)	(15)	(4)	(19)	(3)
Total realized/unrealized gains (losses) included in AOCI	(2)	(22)	(9)	7
Purchases (5)	199	68	238	210
Sales (5)	(43)	(42)	(84)	(73)
Issuances (5)	0	0	0	0
Settlements (5)	0	0	0	0
Transfers into Level 3 (6)	41	26	55	56
Transfers out of Level 3 (6)	(82)	(31)	(136)	(53)
Balance, end of period	1,365	1,931	1,365	1,931
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period	(15)	(3)	(18)	(2)
Changes in unrealized gains (losses) included in OCI	(2)	(24)	(19)	1
Structured Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	482	350	380	365
Total realized/unrealized gains (losses) included in net income (loss) (3) (4)	0	0	1	0
Total realized/unrealized gains (losses) included in AOCI	2	(1)	2	1
Purchases (5)	129	36	207	52
Sales (5)	(26)	(3)	(31)	(7)
Issuances (5)	0	0	0	0
Settlements (5)	0	0	0	0
Transfers into Level 3 (6)	0	2	0	2
Transfers out of Level 3 (6)	(81)	(13)	(53)	(42)
Balance, end of period	506	371	506	371
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period	0	0	0	(1)
Changes in unrealized gains (losses) included in OCI	1	(1)	0	0
Foreign government
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	21	39	36	38
Total realized/unrealized gains (losses) included in net income (loss) (3) (4)	0	0	0	0
Total realized/unrealized gains (losses) included in AOCI	0	0	0	1
Purchases (5)	0	0	0	0
Sales (5)	0	(1)	0	(1)
Issuances (5)	0	0	0	0
Settlements (5)	0	0	0	0
Transfers into Level 3 (6)	0	0	0	0
Transfers out of Level 3 (6)	0	0	(15)	0
Balance, end of period	21	38	21	38
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period	0	0	0	0
Changes in unrealized gains (losses) included in OCI	0	0	0	1
Equity Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	25	25	25	27
Total realized/unrealized gains (losses) included in net income (loss) (3) (4)	(1)	(2)	(1)	(4)
Total realized/unrealized gains (losses) included in AOCI	0	0	0	0
Purchases (5)	0	1	0	1
Sales (5)	0	0	0	0
Issuances (5)	0	0	0	0
Settlements (5)	0	0	0	0
Transfers into Level 3 (6)	0	0	0	0
Transfers out of Level 3 (6)	0	0	0	0
Balance, end of period	24	24	24	24
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period	(2)	(2)	(2)	(3)
Changes in unrealized gains (losses) included in OCI	$ 0	$ 0	$ 0	$ 0