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Fair Value (Unobservable Input Reconciliation) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Net Derivatives |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | $ (34) | $ 158
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (20) | 64
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |
Balance, beginning of period | (143) | (170)
Total realized/unrealized gains (losses) included in net income (loss) | (35) | 168
Total realized/unrealized gains (losses) included in AOCI | (28) | 83
Purchases | 0 | 0
Sales | 0 | 0
Issuances | (2) | 0
Settlements | 71 | 33
Transfers into Level 3 | 0 | (61)
Transfers out of Level 3 | (2) | 0
Balance, end of period | (139) | 53
Net Embedded Derivatives |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 32 | (17)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |  |
Balance, beginning of period | (93) | (17)
Total realized/unrealized gains (losses) included in net income (loss) | 32 | (17)
Total realized/unrealized gains (losses) included in AOCI | 0 | 0
Purchases | 0 | 0
Sales | 0 | 0
Issuances | 0 | 0
Settlements | (1) | (10)
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Balance, end of period | (62) | (44)
Corporate fixed maturity securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 28,345 | 24,401
Total realized/unrealized gains (losses) included in net income (loss) | (11) | 1
Total realized/unrealized gains (losses) included in AOCI | (372) | 703
Purchases | 1,232 | 1,547
Sales | (536) | (649)
Issuances | 0 | 0
Settlements | 0 | 0
Transfers into Level 3 | 87 | 191
Transfers out of Level 3 | (242) | (518)
Balance, end of period | 28,503 | 25,676
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 7 | 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | (379) | 694
Foreign government |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 51 | 103
Total realized/unrealized gains (losses) included in net income (loss) | 2 | 0
Total realized/unrealized gains (losses) included in AOCI | 0 | 0
Purchases | 1 | 8
Sales | 0 | (9)
Issuances | 0 | 0
Settlements | 0 | 0
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | (9) | (56)
Balance, end of period | 45 | 46
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 2 | 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | (1)
Structured Products |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 4,551 | 4,269
Total realized/unrealized gains (losses) included in net income (loss) | 3 | (7)
Total realized/unrealized gains (losses) included in AOCI | 45 | 20
Purchases | 906 | 341
Sales | (170) | (139)
Issuances | 0 | 0
Settlements | 0 | 0
Transfers into Level 3 | 79 | 139
Transfers out of Level 3 | (137) | (70)
Balance, end of period | 5,277 | 4,553
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 3 | (3)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 42 | 18
Equity Securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 249 | 259
Total realized/unrealized gains (losses) included in net income (loss) | 2 | 7
Total realized/unrealized gains (losses) included in AOCI | 0 | 0
Purchases | 5 | 2
Sales | (3) | (10)
Issuances | 0 | 0
Settlements | 0 | 0
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | 0 | 0
Balance, end of period | 253 | 258
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 5 | (3)
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0
Unit-linked and FVO Securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 1,103 | 787
Total realized/unrealized gains (losses) included in net income (loss) | 31 | 45
Total realized/unrealized gains (losses) included in AOCI | 0 | 0
Purchases | 129 | 193
Sales | (153) | (13)
Issuances | 0 | 0
Settlements | 0 | 0
Transfers into Level 3 | 7 | 2
Transfers out of Level 3 | (24) | (3)
Balance, end of period | 1,093 | 1,011
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 31 | 45
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0
Short-term Investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 27 | 57
Total realized/unrealized gains (losses) included in net income (loss) | 0 | 0
Total realized/unrealized gains (losses) included in AOCI | 0 | 1
Purchases | 4 | 52
Sales | (12) | (42)
Issuances | 0 | 0
Settlements | 0 | 0
Transfers into Level 3 | 0 | 0
Transfers out of Level 3 | (5) | (10)
Balance, end of period | 14 | 58
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 1 | 0
Other Investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 975 | 926
Total realized/unrealized gains (losses) included in net income (loss) | 12 | 1
Total realized/unrealized gains (losses) included in AOCI | 0 | 0
Purchases | 5 | 1
Sales | 0 | 0
Issuances | 0 | 0
Settlements | 0 | 0
Transfers into Level 3 | 179 | 0
Transfers out of Level 3 | 0 | 0
Balance, end of period | 1,171 | 928
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 13 | 3
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | 0 | 0
Separate Accounts |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 1,147 | 1,210
Total realized/unrealized gains (losses) included in net income (loss) | (28) | (22)
Total realized/unrealized gains (losses) included in AOCI | 0 | 0
Purchases | 39 | 101
Sales | (12) | (93)
Issuances | 0 | 0
Settlements | 0 | 1
Transfers into Level 3 | 3 | 5
Transfers out of Level 3 | (7) | 0
Balance, end of period | 1,142 | 1,202
Changes in unrealized gains (losses) included in net income (loss) for the instruments still held at end of period | 0 | 0
Changes in unrealized gains (losses) included in AOCI for the instruments still held at end of period | $ 0 | $ 0

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