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Equity (Reclassifications Out of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |
Net investment gains (losses) | $ (685) |  | $ 1,605 |  | $ (1,203) | $ 1,739
Net investment income | 3,583 |  | 5,280 |  | 7,867 | 10,594
Net derivative gains (losses) | (1,195) |  | 421 |  | (2,054) | (1,814)
Other expenses | 3,083 |  | 2,881 |  | 6,103 | 6,031
Income (loss) from continuing operations before provision for income tax | (2) |  | 4,487 |  | 713 | 4,778
Income tax (expense) benefit | 140 |  | (1,075) |  | 99 | (1,003)
Net income (loss) | 138 | $ 674 | 3,412 | $ 363 | 812 | 3,775
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |
Net income (loss) | (1,043) |  | 104 |  | (1,402) | (68)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Investment Gains (Losses), Net of Related Offsets |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |
Net investment gains (losses) | (772) |  | (6) |  | (1,122) | (55)
Net investment income | 2 |  | (4) |  | 4 | (9)
Net derivative gains (losses) | 88 |  | 25 |  | 115 | 49
Income (loss) from continuing operations before provision for income tax | (682) |  | 15 |  | (1,003) | (15)
Income tax (expense) benefit | 155 |  | (3) |  | 230 | 4
Net income (loss) | (527) |  | 12 |  | (773) | (11)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivatives |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |
Income (loss) from continuing operations before provision for income tax | (629) |  | 131 |  | (741) | (43)
Income tax (expense) benefit | 132 |  | (27) |  | 152 | 10
Net income (loss) | (497) |  | 104 |  | (589) | (33)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivatives | Interest Rate Contract |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |
Net investment gains (losses) | 42 |  | 19 |  | 60 | 48
Net investment income | 16 |  | 15 |  | 31 | 27
Other expenses | 1 |  | 0 |  | 2 | 1
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivatives | Foreign currency swaps |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |
Net investment gains (losses) | (690) |  | 95 |  | (838) | (124)
Net investment income | 1 |  | 1 |  | 3 | 4
Other expenses | 1 |  | 1 |  | 1 | 1
Reclassification out of Accumulated Other Comprehensive Income | Defined Benefit Plans Adjustment |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |  |  |
Amortization of net actuarial gains (losses) | (26) |  | (35) |  | (53) | (53)
Amortization of prior service (costs) credit | 3 |  | 18 |  | 6 | 22
Income (loss) from continuing operations before provision for income tax | (23) |  | (17) |  | (47) | (31)
Income tax (expense) benefit | 4 |  | 5 |  | 7 | 7
Net income (loss) | $ (19) |  | $ (12) |  | $ (40) | $ (24)

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