v3.26.1
FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation for All Levels (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Total gains and (losses), realized and unrealized, included in:    
Subtotal $ (7)  
Transfers into level 3 220 $ 183
Transfers out of level 3 (512) (879)
Corporate | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 2,496 2,472
Total gains and (losses), realized and unrealized, included in:    
Net investment income (loss) 1 1
Investment gains (losses), net (9) (3)
Subtotal (8) (2)
Other comprehensive income (loss) (19) 11
Purchases 464 145
Debt issuances 0 0
Sales (111) (98)
Settlements 0 0
Change in fair value of Modco payable 0  
Other 0 0
Activity related to consolidated VIEs/VOEs 0 0
Transfers into level 3 21 0
Transfers out of level 3 (103) (697)
Balance, end of period 2,740 1,831
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 (19) 8
Asset-backed | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 1,545 232
Total gains and (losses), realized and unrealized, included in:    
Net investment income (loss) 0 0
Investment gains (losses), net (4) 0
Subtotal (4) 0
Other comprehensive income (loss) (12) 3
Purchases 319 386
Debt issuances 0 0
Sales (115) (122)
Settlements 0 0
Change in fair value of Modco payable 0  
Other 0 0
Activity related to consolidated VIEs/VOEs 0 0
Transfers into level 3 69 149
Transfers out of level 3 (166) 0
Balance, end of period 1,636 648
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 (11) 3
CMBS | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 38 8
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) (1) 0
Purchases 3 0
Debt issuances 0 0
Sales 0 0
Settlements 0 0
Change in fair value of Modco payable 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 40 8
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 (1) 0
Fixed maturities, at FVO | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 459 275
Total gains and (losses), realized and unrealized, included in:    
Net investment income (loss) (7) 2
Investment gains (losses), net 0 (4)
Subtotal   (2)
Other comprehensive income (loss) 0 0
Purchases 46 112
Debt issuances 0 0
Sales (11) (14)
Settlements 0 0
Change in fair value of Modco payable 0 0
Other 0 0
Activity related to consolidated VIEs/VOEs 0 0
Transfers into level 3 126 32
Transfers out of level 3 (174) (140)
Balance, end of period 439 263
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period (6) 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
Mortgage loans, at FVO | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 50  
Total gains and (losses), realized and unrealized, included in:    
Net investment income (loss) 0  
Investment gains (losses), net (3)  
Subtotal (3)  
Other comprehensive income (loss) 0  
Purchases 25  
Debt issuances 0  
Sales 0  
Settlements 0  
Change in fair value of Modco payable 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 72  
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  
Other equity investments | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 18 55
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 5 3
Debt issuances 0 0
Sales (4) 0
Settlements 0 0
Change in fair value of Modco payable 0 0
Other 0 0
Activity related to consolidated VIEs/VOEs 0 0
Transfers into level 3 4 2
Transfers out of level 3 0 (42)
Balance, end of period 23 18
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
Trading Securities, at Fair Value | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 286 80
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 64 29
Debt issuances 0 0
Sales (2) 0
Settlements 0 0
Change in fair value of Modco payable 0 0
Other 0 0
Activity related to consolidated VIEs/VOEs 0 0
Transfers into level 3 0 0
Transfers out of level 3 (1) 0
Balance, end of period 347 109
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
Short-term investments | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period 68  
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 0  
Sales 0  
Settlements 0  
Change in fair value of Modco payable 0  
Other 0  
Activity related to consolidated VIEs/VOEs 0  
Transfers into level 3 0  
Transfers out of level 3 (68)  
Balance, end of period 0  
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  
Modco Payable | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period (1)  
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 0  
Sales 0  
Settlements 0  
Change in fair value of Modco payable 3  
Other 0  
Activity related to consolidated VIEs/VOEs 0  
Transfers into level 3 0  
Transfers out of level 3 0  
Balance, end of period 2  
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  
Notes issued by consolidated VIEs | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period (254) (172)
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 (44) (1)
Sales 0 0
Settlements (5) (5)
Change in fair value of Modco payable 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 (293) (168)
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
Contingent Payment Arrangement | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period (9) (9)
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 0
Sales 0 0
Settlements 0 (1)
Change in fair value of Modco payable 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 (9) (8)
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