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FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation for All Levels (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Total gains (losses), realized and unrealized, included in: |  |  |  |
Transfers into level 3 |  | $ 213 | $ 27 |
Transfers out of level 3 |  | (200) | (785) |
Contingent payment arrangements other accretion amount |  | 7 |  |
Held-for-sale reclassifications |  | (29) |  |
GMxB derivative features’ liability |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Settlement fee |  |  | 45 |
Corporate | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 1,504 | 1,702 | $ 1,257
Investment gains (losses), reported in net investment income |  | 5 | 5 | 4
Net derivative gains (losses) (1) |  | (5) | (16) | (16)
Total realized and unrealized gains (losses) |  | 0 | (11) | (12)
Other comprehensive income (loss) |  | (159) | 34 | (17)
Purchases |  | 1,107 | 938 | 514
Sales |  | (378) | (473) | 226
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 168 | 27 | 189
Transfers out of level 3 |  | (121) | (713) | 3
Ending Balance | $ 1,504 | 2,121 | 1,504 | 1,702
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 0 | 0 | 0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | (156) | 28 | (18)
States and political subdivisions | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 35 | 39 | 39
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | 0 | 0 | 0
Other comprehensive income (loss) |  | (5) | (2) | 2
Purchases |  | 0 | 0 | 0
Sales |  | (2) | (2) | 2
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | 0 | 0
Ending Balance | 35 | 28 | 35 | 39
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 0 | 0 | 0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | (5) | (2) | 2
Asset-backed | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 8 | 20 | 100
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | 0 | 0 | 0
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 0 | 6 | 20
Sales |  | (2) | (18) | 0
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | (6) | 0 | 100
Ending Balance | 8 | 0 | 8 | 20
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 0 | 0 | 0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
CMBS | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 20 | 0 | 0
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | 0 | 0 | 0
Other comprehensive income (loss) |  | (2) | 0 | 0
Purchases |  | 14 | 20 | 0
Sales |  | 0 | 0 | 0
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | 0 | 0
Ending Balance | 20 | 32 | 20 | 0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 0 | 0 | 0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | (2) | 0 | 0
RMBS | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 0 | 0 | 0
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | 0 | 0 | 0
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 34 | 0 | 0
Sales |  | 0 | 0 | 0
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | 0 | 0
Ending Balance | 0 | 34 | 0 | 0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 0 | 0 | 0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
Trading Securities, at Fair Value | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 65 | 39 | 36
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | (10) | 26 | 3
Total realized and unrealized gains (losses) |  | (10) | 26 | 3
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 0 | 0 | 0
Sales |  | 0 | 0 | 0
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | 0 | 0
Ending Balance | 65 | 55 | 65 | 39
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | (10) | 26 | 3
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
Fixed maturities, at FVO | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 201 | 80 | 0
Investment gains (losses), reported in net investment income |  | (11) | 5 | 0
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | (11) | 5 | 0
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 98 | 211 | 81
Sales |  | (36) | (23) | 1
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 45 | 0 | 0
Transfers out of level 3 |  | (73) | (72) | 0
Ending Balance | 201 | 224 | 201 | 80
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | (2) | 5 | 0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
Other equity investments | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 16 | 84 | 113
Investment gains (losses), reported in net investment income |  | (1) | 21 | (8)
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | (1) | 21 | (8)
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 8 | 8 | 9
Sales |  | 0 | (92) | (26)
Settlements |  | 0 |  | 0
Change in estimate |  |  |  | 0
Other |  | 0 | 0 |
Activity related to consolidated VIEs/VOEs |  | (3) | (4) | (4)
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | (3) | (1) | 0
Ending Balance | 16 | 17 | 16 | 84
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | (1) | 2 | (8)
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
GMIB Reinsurance Contract Asset |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Non-performance risk |  | (35) | (23) | 7
GMIB Reinsurance Contract Asset | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 1,848 | 2,488 | 2,139
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | (581) | (625) | 417
Total realized and unrealized gains (losses) |  | (581) | (625) | 417
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 40 | 43 | 43
Sales |  | (78) | (58) | (79)
Settlements |  | 0 |  | 0
Change in estimate |  |  |  | (32)
Other |  | 0 | 0 |
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | 0 | 0
Ending Balance | 1,848 | 1,229 | 1,848 | 2,488
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | (581) | (625) | 417
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
Amounts Due from Reinsurers |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Non-performance risk |  | (60) | (19) | 0
Amounts Due from Reinsurers | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 5,815 | 0 | 0
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | (1,706) | 517 | 0
Total realized and unrealized gains (losses) |  | (1,706) | 517 | 0
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 122 | 74 | 0
Sales |  | (117) | (35) | 0
Settlements |  | 0 |  | 0
Change in estimate |  |  |  | 0
Other |  | 0 | 5,259 |
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | 0 | 0
Ending Balance | 5,815 | 4,114 | 5,815 | 0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | (1,706) | 517 | 74
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
Separate Accounts Assets | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | 1 | 1 | 0
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | 0 | 0 | 0
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | 0 | 1 | 1
Sales |  | 0 | 0 | 0
Settlements |  | 0 |  | 0
Change in estimate |  |  |  | 0
Other |  | 0 | 0 |
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | (1) | 0
Ending Balance | 1 | 1 | 1 | 1
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 0 | 0 | 1
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
GMxB Derivative Features Liability |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Non-performance risk |  | 522 | 213 | (764)
GMxB Derivative Features Liability | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | (8,525) | (11,131) | (8,502)
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | 3,076 | 2,841 | (2,253)
Total realized and unrealized gains (losses) |  | 3,076 | 2,841 | (2,253)
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | (462) | (463) | (451)
Sales |  | 147 | 88 | 75
Settlements |  | 0 |  | 0
Change in estimate |  |  |  | 0
Other |  | 0 | 0 |
Activity related to consolidated VIEs/VOEs |  | 0 | 0 | 0
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 |  | 0 | 140 | 0
Ending Balance | (8,525) | (5,764) | (8,525) | (11,131)
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 3,076 | 2,841 | (2,253)
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | 0 | 0 | 0
Contingent Payment Arrangement | Level 3 |  |  |  |
Total gains (losses), realized and unrealized, included in: |  |  |  |
Beginning Balance |  | (38) | (28) | (23)
Investment gains (losses), reported in net investment income |  | 0 | 0 | 0
Net derivative gains (losses) (1) |  | 0 | 0 | 0
Total realized and unrealized gains (losses) |  | 0 | 0 | 0
Other comprehensive income (loss) |  | 0 | 0 | 0
Purchases |  | (231) | (7) | (4)
Sales |  | 0 | 0 | 0
Settlements |  | 0 |  | 1
Change in estimate |  |  |  | 1
Other |  | 22 | 0 |
Activity related to consolidated VIEs/VOEs |  | 0 | (3) | (3)
Transfers into level 3 |  | 0 | 0 | 0
Transfers out of level 3 | 0 | 0 |  | 0
Ending Balance | $ (38) | (247) | (38) | (28)
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 0 | 0 | (7)
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period |  | $ 0 | $ 0 | $ 0

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