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FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation for All Levels (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Total gains and (losses), realized and unrealized, included in: |  |
Transfers into level 3 | $ 183 | $ 120
Transfers out of level 3 | (879) | (169)
Level 3 | Corporate |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 2,472 | 2,158
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 1 | 2
Investment gains (losses), net | (3) | (1)
Subtotal | (2) | 1
Other comprehensive income (loss) | 11 | 10
Purchases | 145 | 215
Debt issuances | 0 |
Sales | (98) | (56)
Settlements | 0 | 0
Other | 0 | 0
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 0 | 57
Transfers out of level 3 | (697) | (47)
Balance, end of period | 1,831 | 2,338
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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 | 8 | 10
Level 3 | States and political subdivisions |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 0 | 27
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 0 | 0
Investment gains (losses), net | 0 | 0
Subtotal | 0 | 0
Other comprehensive income (loss) | 0 | 0
Purchases | 0 | 0
Debt issuances | 0 |
Sales | 0 | 0
Settlements | 0 | 0
Other | 0 | 0
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 0 | 0
Transfers out of level 3 | 0 | (27)
Balance, end of period | 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
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
Level 3 | Asset-backed |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 232 | 47
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 0 | 0
Investment gains (losses), net | 0 | 0
Subtotal | 0 | 0
Other comprehensive income (loss) | 3 | 0
Purchases | 386 | 48
Debt issuances | 0 |
Sales | (122) | (10)
Settlements | 0 | 0
Other | 0 | 0
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 149 | 0
Transfers out of level 3 | 0 | (14)
Balance, end of period | 648 | 71
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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 | 3 | 0
Level 3 | CMBS |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 8 | 7
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 0 | 0
Investment gains (losses), net | 0 | 0
Subtotal | 0 | 0
Other comprehensive income (loss) | 0 | 0
Purchases | 0 | 0
Debt issuances | 0 |
Sales | 0 | 0
Settlements | 0 | 0
Other | 0 | 0
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 0 | 0
Transfers out of level 3 | 0 | 0
Balance, end of period | 8 | 7
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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
Level 3 | Fixed maturities, at FVO |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 275 | 181
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 2 | 16
Investment gains (losses), net | (4) | 0
Subtotal | (2) | 16
Other comprehensive income (loss) | 0 | 0
Purchases | 112 | 80
Debt issuances | 0 |
Sales | (14) | (15)
Settlements | 0 | 0
Other | 0 | 0
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 32 | 63
Transfers out of level 3 | (140) | (81)
Balance, end of period | 263 | 244
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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 | 28
Level 3 | Other equity investments |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 55 | 57
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 0 | 1
Investment gains (losses), net | 0 | 0
Subtotal | 0 | 1
Other comprehensive income (loss) | 0 | 0
Purchases | 3 | 42
Debt issuances | 0 |
Sales | 0 | (42)
Settlements | 0 | 0
Other | 0 | 0
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 2 | 0
Transfers out of level 3 | (42) | 0
Balance, end of period | 18 | 58
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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
Level 3 | Trading Securities, at Fair Value |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | 80 | 61
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 0 | 0
Investment gains (losses), net | 0 | 0
Subtotal | 0 | 0
Other comprehensive income (loss) | 0 | 0
Purchases | 29 | 0
Debt issuances | 0 |
Sales | 0 | 0
Settlements | 0 | 0
Other | 0 | 0
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 0 | 0
Transfers out of level 3 | 0 | 0
Balance, end of period | 109 | 61
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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
Level 3 | Notes issued by consolidated VIE’s |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | (172) |
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 0 |
Investment gains (losses), net | 0 |
Subtotal | 0 |
Other comprehensive income (loss) | 0 |
Purchases | 0 |
Debt issuances | (1) |
Sales | 0 |
Settlements | 5 |
Other | 0 |
Activity related to consolidated VIEs/VOEs | 0 |
Transfers into level 3 | 0 |
Transfers out of level 3 | 0 |
Balance, end of period | (168) |
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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 |
Level 3 | Separate Accounts Assets |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period |  | 0
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) |  | 0
Investment gains (losses), net |  | 0
Subtotal |  | 0
Other comprehensive income (loss) |  | 0
Purchases |  | 1
Sales |  | 0
Settlements |  | 0
Other |  | 0
Activity related to consolidated VIEs/VOEs |  | 0
Transfers into level 3 |  | 0
Transfers out of level 3 |  | 0
Balance, end of period |  | 1
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period |  | 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
Level 3 | Contingent Payment Arrangement |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Balance, beginning of period | (9) | (253)
Total gains and (losses), realized and unrealized, included in: |  |
Net investment income (loss) | 0 | 0
Investment gains (losses), net | 0 | 0
Subtotal | 0 | 0
Other comprehensive income (loss) | 0 | 0
Purchases | 0 | 0
Debt issuances | 0 |
Sales | 0 | 0
Settlements | 1 | 1
Other | 0 | (2)
Activity related to consolidated VIEs/VOEs | 0 | 0
Transfers into level 3 | 0 | 0
Transfers out of level 3 | 0 | 0
Balance, end of period | (8) | (254)
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period | 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

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