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Fair Value of Financial Instruments - Changes to Fair Value of Financial Instruments Level 3 (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | $ 5,496 | $ 3,467 | $ 5,600 | $ 3,267
Assets, Total Gains (Losses) Included in Earnings | (5) | 4 | (9) | 14
Assets, Total Gains (Losses) Included in AOCI | (214) | 30 | (431) | (30)
Assets, Purchases | 1,144 | 1,138 | 1,643 | 1,542
Assets, Sales | (40) | (8) | (39) | (8)
Assets, Settlements | (134) | (205) | (313) | (345)
Assets, Net transfer In (Out) of Level 3 | (18) | (26) | (222) | (40)
Balance at End of Period | 6,229 | 4,400 | 6,229 | 4,400
Change in Unrealized Gains (Losses) Incl in OCI | (221) | 33 | (441) | 82
Liabilities |  |  |  |
Balance at Beginning of Period | 3,395 | 3,297 | 3,883 | 3,409
Liabilities, Total Gains (Losses) Included in Earnings | (454) | 466 | (942) | 355
Liabilities, Total Gains (Losses) Included in AOCI | 0 | 0 | 0 | 0
Liabilities, Purchases | 0 | 0 | 0 | 0
Liabilities, Sales | 0 | (4) | 0 | (4)
Liabilities, Settlements | 0 | 0 | 0 | (1)
Liabilities, Net transfer In (Out) of Level 3 | 0 | 0 | 0 | 0
Balance at End of Period | 2,941 | 3,759 | 2,941 | 3,759
Change in Unrealized Gains (Losses) Included in OCI | 0 | 0 | 0 | 0
Future policy benefits |  |  |  |
Liabilities |  |  |  |
Balance at Beginning of Period |  | 4 |  | 5
Liabilities, Total Gains (Losses) Included in Earnings |  | 0 |  | 0
Liabilities, Total Gains (Losses) Included in AOCI |  | 0 |  | 0
Liabilities, Purchases |  | 0 |  | 0
Liabilities, Sales |  | (4) |  | (4)
Liabilities, Settlements |  | 0 |  | (1)
Liabilities, Net transfer In (Out) of Level 3 |  | 0 |  | 0
Balance at End of Period |  | 0 |  | 0
Change in Unrealized Gains (Losses) Included in OCI |  | 0 |  | 0
FIA embedded derivatives, included in contractholder funds |  |  |  |
Liabilities |  |  |  |
Balance at Beginning of Period | 3,395 | 3,293 | 3,883 | 3,404
Liabilities, Total Gains (Losses) Included in Earnings | (454) | 466 | (942) | 355
Liabilities, Total Gains (Losses) Included in AOCI | 0 | 0 | 0 | 0
Liabilities, Purchases | 0 | 0 | 0 | 0
Liabilities, Sales | 0 | 0 | 0 | 0
Liabilities, Settlements | 0 | 0 | 0 | 0
Liabilities, Net transfer In (Out) of Level 3 | 0 | 0 | 0 | 0
Balance at End of Period | 2,941 | 3,759 | 2,941 | 3,759
Change in Unrealized Gains (Losses) Included in OCI | 0 | 0 | 0 | 0
Asset-backed securities |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 4,161 | 1,593 | 3,959 | 1,350
Assets, Total Gains (Losses) Included in Earnings | 1 | 0 | 1 | 0
Assets, Total Gains (Losses) Included in AOCI | (142) | 20 | (272) | (3)
Assets, Purchases | 827 | 813 | 1,227 | 1,171
Assets, Sales | (39) | 0 | (39) | 0
Assets, Settlements | (126) | (90) | (278) | (182)
Assets, Net transfer In (Out) of Level 3 | (5) | (27) | 79 | (27)
Balance at End of Period | 4,677 | 2,309 | 4,677 | 2,309
Change in Unrealized Gains (Losses) Incl in OCI | (153) | 18 | (291) | 14
Commercial mortgage-backed securities |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 40 | 25 | 35 | 26
Assets, Total Gains (Losses) Included in Earnings | 0 | 0 | 0 | 0
Assets, Total Gains (Losses) Included in AOCI | (3) | 0 | (5) | (1)
Assets, Purchases | 0 | 0 | 0 | 0
Assets, Sales | 0 | 0 | 0 | 0
Assets, Settlements | 0 | 0 | 0 | 0
Assets, Net transfer In (Out) of Level 3 | 0 | 0 | 7 | 0
Balance at End of Period | 37 | 25 | 37 | 25
Change in Unrealized Gains (Losses) Incl in OCI | (2) | 0 | (4) | 1
Corporates |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 1,141 | 1,247 | 1,135 | 1,289
Assets, Total Gains (Losses) Included in Earnings | 0 | 2 | 0 | 9
Assets, Total Gains (Losses) Included in AOCI | (64) | 16 | (137) | (26)
Assets, Purchases | 307 | 18 | 386 | 57
Assets, Sales | 0 | (7) | 0 | (8)
Assets, Settlements | (6) | (76) | (32) | (107)
Assets, Net transfer In (Out) of Level 3 | (4) | 1 | 22 | (13)
Balance at End of Period | 1,374 | 1,201 | 1,374 | 1,201
Change in Unrealized Gains (Losses) Incl in OCI | (61) | 18 | (134) | 37
Hybrids |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period |  |  | 0 | 4
Assets, Total Gains (Losses) Included in Earnings |  |  | 0 | 0
Assets, Total Gains (Losses) Included in AOCI |  |  | 0 | 0
Assets, Purchases |  |  | 0 | 0
Assets, Sales |  |  | 0 | 0
Assets, Settlements |  |  | 0 | (4)
Assets, Net transfer In (Out) of Level 3 |  |  | 0 | 0
Balance at End of Period | 0 | 0 | 0 | 0
Change in Unrealized Gains (Losses) Incl in OCI |  |  | 0 | 0
Municipals |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 37 | 41 | 43 | 43
Assets, Total Gains (Losses) Included in Earnings | 0 | 0 | 0 | 0
Assets, Total Gains (Losses) Included in AOCI | (4) | 2 | (10) | 0
Assets, Purchases | 0 | 0 | 0 | 0
Assets, Sales | 0 | 0 | 0 | 0
Assets, Settlements | 0 | 0 | 0 | 0
Assets, Net transfer In (Out) of Level 3 | 0 | 0 | 0 | 0
Balance at End of Period | 33 | 43 | 33 | 43
Change in Unrealized Gains (Losses) Incl in OCI | (4) | 3 | (9) | 7
Residential mortgage-backed securities |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 0 | 487 | 0 | 483
Assets, Total Gains (Losses) Included in Earnings | 0 | 0 | 0 | 0
Assets, Total Gains (Losses) Included in AOCI | 0 | (10) | 0 | 2
Assets, Purchases | 9 | 5 | 9 | 10
Assets, Sales | 0 | 0 | 0 | 0
Assets, Settlements | 0 | (39) | 0 | (52)
Assets, Net transfer In (Out) of Level 3 | 0 | 0 | 0 | 0
Balance at End of Period | 9 | 443 | 9 | 443
Change in Unrealized Gains (Losses) Incl in OCI | 0 | (6) | 0 | 21
Foreign Governments |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 17 | 17 | 18 | 17
Assets, Total Gains (Losses) Included in Earnings | 0 | 0 | 0 | 0
Assets, Total Gains (Losses) Included in AOCI | (1) | 0 | (2) | 0
Assets, Purchases | 0 | 0 | 0 | 0
Assets, Sales | 0 | 0 | 0 | 0
Assets, Settlements | 0 | 0 | 0 | 0
Assets, Net transfer In (Out) of Level 3 | 0 | 0 | 0 | 0
Balance at End of Period | 16 | 17 | 16 | 17
Change in Unrealized Gains (Losses) Incl in OCI | (1) | 0 | (1) | 2
Short term investments |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 19 | 0 | 321 | 0
Assets, Total Gains (Losses) Included in Earnings | 0 | 0 | 0 | 0
Assets, Total Gains (Losses) Included in AOCI | 0 | 1 | (1) | 1
Assets, Purchases | 0 | 302 | 20 | 302
Assets, Sales | 0 | 0 | 0 | 0
Assets, Settlements | 0 | 0 | 0 | 0
Assets, Net transfer In (Out) of Level 3 | (19) | 0 | (340) | 0
Balance at End of Period | 0 | 303 | 0 | 303
Change in Unrealized Gains (Losses) Incl in OCI | 0 | 0 | (1) | 0
Preferred securities |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 1 |  | 2 |
Assets, Total Gains (Losses) Included in Earnings | 0 |  | 0 |
Assets, Total Gains (Losses) Included in AOCI | 0 |  | (1) |
Assets, Purchases | 0 |  | 0 |
Assets, Sales | 0 |  | 0 |
Assets, Settlements | 0 |  | 0 |
Assets, Net transfer In (Out) of Level 3 | 0 |  | 0 |
Balance at End of Period | 1 |  | 1 |
Change in Unrealized Gains (Losses) Incl in OCI | 0 |  | (1) |
Equity securities |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 10 |  | 9 |
Assets, Total Gains (Losses) Included in Earnings | 0 |  | 0 |
Assets, Total Gains (Losses) Included in AOCI | 0 |  | 0 |
Assets, Purchases | 1 |  | 1 |
Assets, Sales | (1) |  | 0 |
Assets, Settlements | 0 |  | 0 |
Assets, Net transfer In (Out) of Level 3 | 0 |  | 0 |
Balance at End of Period | 10 |  | 10 |
Change in Unrealized Gains (Losses) Incl in OCI | 0 |  | 0 |
Equity and preferred securities |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period |  | 10 |  | 5
Assets, Total Gains (Losses) Included in Earnings |  | 0 |  | 2
Assets, Total Gains (Losses) Included in AOCI |  | 1 |  | 1
Assets, Purchases |  | 0 |  | 2
Assets, Sales |  | (1) |  | 0
Assets, Settlements |  | 0 |  | 0
Assets, Net transfer In (Out) of Level 3 |  | 0 |  | 0
Balance at End of Period |  | 10 |  | 10
Change in Unrealized Gains (Losses) Incl in OCI |  | 0 |  | 0
Available-for-sale embedded derivative |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 30 | 28 | 34 | 27
Assets, Total Gains (Losses) Included in Earnings | (6) | 2 | (10) | 3
Assets, Total Gains (Losses) Included in AOCI | 0 | 0 | 0 | 0
Assets, Purchases | 0 | 0 | 0 | 0
Assets, Sales | 0 | 0 | 0 | 0
Assets, Settlements | 0 | 0 | 0 | 0
Assets, Net transfer In (Out) of Level 3 | 0 |  | 0 | 0
Balance at End of Period | 24 | 30 | 24 | 30
Change in Unrealized Gains (Losses) Incl in OCI | 0 | 0 | 0 | 0
Investment in affiliate |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 21 |  | 21 |
Assets, Total Gains (Losses) Included in Earnings | 0 |  | 0 |
Assets, Total Gains (Losses) Included in AOCI | 0 |  | 0 |
Assets, Purchases | 0 |  | 0 |
Assets, Sales | 0 |  | 0 |
Assets, Settlements | 0 |  | 0 |
Assets, Net transfer In (Out) of Level 3 | 0 |  | 0 |
Balance at End of Period | 21 |  | 21 |
Change in Unrealized Gains (Losses) Incl in OCI | 0 |  | 0 |
Credit linked note |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 19 | 19 | 23 | 23
Assets, Total Gains (Losses) Included in Earnings | 0 | 0 | 0 | 0
Assets, Total Gains (Losses) Included in AOCI | 0 | 0 | (3) | (4)
Assets, Purchases | 0 | 0 | 0 | 0
Assets, Sales | 0 | 0 | 0 | 0
Assets, Settlements | (2) | 0 | (3) | 0
Assets, Net transfer In (Out) of Level 3 | 0 | 0 | 0 | 0
Balance at End of Period | 17 | 19 | 17 | 19
Change in Unrealized Gains (Losses) Incl in OCI | 0 | $ 0 | 0 | $ 0
Secured borrowing receivable |  |  |  |
Fixed maturity securities available-for-sale: |  |  |  |
Balance at Beginning of Period | 0 |  | 0 |
Assets, Total Gains (Losses) Included in Earnings | 0 |  | 0 |
Assets, Total Gains (Losses) Included in AOCI | 0 |  | 0 |
Assets, Purchases | 0 |  | 0 |
Assets, Sales | 0 |  | 0 |
Assets, Settlements | 0 |  | 0 |
Assets, Net transfer In (Out) of Level 3 | 10 |  | 10 |
Balance at End of Period | 10 |  | 10 |
Change in Unrealized Gains (Losses) Incl in OCI | $ 0 |  | $ 0 |

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