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Fair Value (Recurring Fair Value Measurements) (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | $ 284,178 | $ 340,274
Equity securities | 1,085 | 1,269
Unit-linked and FVO Securities (2) | 9,875 | 12,142
Short-term investments (3) | 3,043 | 7,176
Residential mortgage loans — FVO | 82,055 | 79,353
Derivative assets | 11,583 | 10,466
Separate account assets | 143,829 | 179,873
Liabilities [Abstract] |  |
Derivative liabilities | 6,855 | 3,852
Embedded derivatives within liability host contracts | 531 | 649
Separate account liabilities | 143,829 | 179,873
Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 109 | 127
Recurring |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 284,178 | 340,274
Equity securities | 1,085 | 1,269
Unit-linked and FVO Securities (2) | 9,875 | 12,142
Short-term investments (3) | 2,607 | 6,560
Other investments | 1,178 | 959
Derivative assets | 11,583 | 10,466
Embedded derivatives within asset host contracts | 35 | 38
Separate account assets | 143,829 | 179,873
Total assets (7) | 454,479 | 551,708
Liabilities [Abstract] |  |
Derivative liabilities | 6,855 | 3,852
Embedded derivatives within liability host contracts | 531 | 649
Total liabilities | 7,431 | 4,526
Recurring | Interest rate |  |
Assets [Abstract] |  |
Derivative assets | 5,031 | 6,678
Liabilities [Abstract] |  |
Derivative liabilities | 2,419 | 281
Recurring | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 5,163 | 2,554
Liabilities [Abstract] |  |
Derivative liabilities | 3,888 | 2,920
Recurring | Credit |  |
Assets [Abstract] |  |
Derivative assets | 63 | 190
Liabilities [Abstract] |  |
Derivative liabilities | 168 | 125
Recurring | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 1,326 | 1,044
Liabilities [Abstract] |  |
Derivative liabilities | 380 | 526
Recurring | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 45 | 25
Recurring | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 109 | 127
Recurring | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 80,555 | 93,034
Recurring | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 54,177 | 63,640
Recurring | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 48,016 | 61,609
Recurring | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 33,690 | 46,599
Recurring | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 27,303 | 30,404
Recurring | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 17,054 | 18,569
Recurring | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 12,513 | 14,212
Recurring | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 10,870 | 12,207
Recurring | Level 1 |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 16,825 | 25,489
Equity securities | 720 | 931
Unit-linked and FVO Securities (2) | 7,319 | 9,173
Short-term investments (3) | 1,944 | 5,607
Other investments | 0 | 0
Derivative assets | 42 | 16
Embedded derivatives within asset host contracts | 0 | 0
Separate account assets | 61,489 | 76,312
Total assets (7) | 88,339 | 117,528
Liabilities [Abstract] |  |
Derivative liabilities | 15 | 7
Embedded derivatives within liability host contracts | 0 | 0
Total liabilities | 29 | 14
Recurring | Level 1 | Interest rate |  |
Assets [Abstract] |  |
Derivative assets | 1 | 4
Liabilities [Abstract] |  |
Derivative liabilities | 7 | 0
Recurring | Level 1 | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 3 | 0
Liabilities [Abstract] |  |
Derivative liabilities | 0 | 2
Recurring | Level 1 | Credit |  |
Assets [Abstract] |  |
Derivative assets | 0 | 0
Liabilities [Abstract] |  |
Derivative liabilities | 0 | 0
Recurring | Level 1 | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 38 | 12
Liabilities [Abstract] |  |
Derivative liabilities | 8 | 5
Recurring | Level 1 | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 14 | 7
Recurring | Level 1 | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 0 | 0
Recurring | Level 1 | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 16,725 | 25,482
Recurring | Level 1 | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 100 | 7
Recurring | Level 1 | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 1 | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 2 |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 239,321 | 283,388
Equity securities | 186 | 187
Unit-linked and FVO Securities (2) | 1,814 | 2,068
Short-term investments (3) | 544 | 950
Other investments | 165 | 61
Derivative assets | 11,153 | 10,326
Embedded derivatives within asset host contracts | 0 | 0
Separate account assets | 81,100 | 101,424
Total assets (7) | 334,283 | 398,404
Liabilities [Abstract] |  |
Derivative liabilities | 6,165 | 3,569
Embedded derivatives within liability host contracts | 0 | 0
Total liabilities | 6,186 | 3,581
Recurring | Level 2 | Interest rate |  |
Assets [Abstract] |  |
Derivative assets | 4,695 | 6,577
Liabilities [Abstract] |  |
Derivative liabilities | 1,983 | 259
Recurring | Level 2 | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 5,140 | 2,551
Liabilities [Abstract] |  |
Derivative liabilities | 3,680 | 2,676
Recurring | Level 2 | Credit |  |
Assets [Abstract] |  |
Derivative assets | 37 | 173
Liabilities [Abstract] |  |
Derivative liabilities | 130 | 113
Recurring | Level 2 | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 1,281 | 1,025
Liabilities [Abstract] |  |
Derivative liabilities | 372 | 521
Recurring | Level 2 | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 21 | 12
Recurring | Level 2 | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 0 | 0
Recurring | Level 2 | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 69,753 | 81,266
Recurring | Level 2 | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 42,397 | 49,973
Recurring | Level 2 | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 47,913 | 61,518
Recurring | Level 2 | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 16,965 | 21,117
Recurring | Level 2 | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 24,503 | 27,270
Recurring | Level 2 | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 15,140 | 16,707
Recurring | Level 2 | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 12,513 | 14,212
Recurring | Level 2 | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 10,137 | 11,325
Recurring | Level 3 |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 28,032 | 31,397
Equity securities | 179 | 151
Unit-linked and FVO Securities (2) | 742 | 901
Short-term investments (3) | 119 | 3
Other investments | 1,013 | 898
Derivative assets | 388 | 124
Embedded derivatives within asset host contracts | 35 | 38
Separate account assets | 1,240 | 2,137
Total assets (7) | 31,857 | 35,776
Liabilities [Abstract] |  |
Derivative liabilities | 675 | 276
Embedded derivatives within liability host contracts | 531 | 649
Total liabilities | 1,216 | 931
Recurring | Level 3 | Interest rate |  |
Assets [Abstract] |  |
Derivative assets | 335 | 97
Liabilities [Abstract] |  |
Derivative liabilities | 429 | 22
Recurring | Level 3 | Foreign currency exchange rate contracts |  |
Assets [Abstract] |  |
Derivative assets | 20 | 3
Liabilities [Abstract] |  |
Derivative liabilities | 208 | 242
Recurring | Level 3 | Credit |  |
Assets [Abstract] |  |
Derivative assets | 26 | 17
Liabilities [Abstract] |  |
Derivative liabilities | 38 | 12
Recurring | Level 3 | Equity market contracts |  |
Assets [Abstract] |  |
Derivative assets | 7 | 7
Liabilities [Abstract] |  |
Derivative liabilities | 0 | 0
Recurring | Level 3 | Derivative Liabilities Within Separate Accounts |  |
Liabilities [Abstract] |  |
Separate account liabilities | 10 | 6
Recurring | Level 3 | Residential mortgage loans - FVO |  |
Assets [Abstract] |  |
Residential mortgage loans — FVO | 109 | 127
Recurring | Level 3 | U.S. corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 10,802 | 11,768
Recurring | Level 3 | Foreign corporate |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 11,780 | 13,667
Recurring | Level 3 | Foreign government |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 103 | 91
Recurring | Level 3 | U.S. government and agency |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 3 | RMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 2,700 | 3,127
Recurring | Level 3 | ABS & CLO |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 1,914 | 1,862
Recurring | Level 3 | Municipals |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 0 | 0
Recurring | Level 3 | CMBS |  |
Assets [Abstract] |  |
Estimated Fair Value of Fixed Maturity Securities AFS | 733 | 882
Other limited partnership interests | Recurring |  |
Assets [Abstract] |  |
Investments, Fair Value Disclosure | $ 95 | $ 99

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