v3.26.1
FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation for All Levels (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Total gains and (losses), realized and unrealized, included in:        
Subtotal     $ 13  
Transfers into level 3     828 $ 367
Transfers out of level 3     (707) (882)
Corporate | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period $ 2,740 $ 1,831 2,496 2,472
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 3 2 4 3
Investment gains (losses), net (11) 0 (20) (3)
Subtotal (8) 2 (16) 0
Other comprehensive income (loss) (2) 17 (21) 28
Purchases 1,201 279 1,665 424
Debt issuances 0   0 0
Sales (967) (292) (1,078) (390)
Settlements 0 0 0 0
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 12 98 33 98
Transfers out of level 3 (9) 74 (112) (623)
Balance, end of period 2,967 2,009 2,967 2,009
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 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 (16) 14 (35) 22
Asset-backed | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 1,636 648 1,545 232
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 0 0 0 0
Investment gains (losses), net 0 0 (4) 0
Subtotal 0 0 (4) 0
Other comprehensive income (loss) (10) 3 (22) 6
Purchases 708 398 1,027 784
Debt issuances 0   0 0
Sales (240) (11) (355) (133)
Settlements 0 0 0 0
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 653 0 722 149
Transfers out of level 3 0 (102) (166) (102)
Balance, end of period 2,747 936 2,747 936
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 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) 0 (22) 3
CMBS | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 40 8 38 8
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 0 0 0 0
Investment gains (losses), net 0 0 0 0
Subtotal 0 0 0 0
Other comprehensive income (loss) 0 1 (1) 1
Purchases 20 11 23 11
Debt issuances 0   0 0
Sales 0 (5) 0 (5)
Settlements 0 0 0 0
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 0 4 0 4
Transfers out of level 3 0 0 0 0
Balance, end of period 60 19 60 19
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 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 (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 439 263 459 275
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 21 (1) 14 1
Investment gains (losses), net (1) 0 (1) (4)
Subtotal 20 (1)   (3)
Other comprehensive income (loss) 0 0 0 0
Purchases (10) 87 36 199
Debt issuances 0 0 0 0
Sales (5) (27) (16) (41)
Settlements 0 0 0 0
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 (55) 63 71 95
Transfers out of level 3 (186) 25 (360) (115)
Balance, end of period 203 410 203 410
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period 20 (1) 14 (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 0
Mortgage loans, at FVO | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 72   50  
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 0   0  
Investment gains (losses), net (1)   (4)  
Subtotal (1)   (4)  
Other comprehensive income (loss) 0   0  
Purchases 0   25  
Debt issuances 0   0  
Sales 0   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 0   0  
Balance, end of period 71   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 0   0  
Other equity investments | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 23 18 18 55
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 1 1 1 1
Investment gains (losses), net 0 0 0 0
Subtotal 1 1 1 1
Other comprehensive income (loss) 0 0 0 0
Purchases 6 11 11 14
Debt issuances 0 0 0 0
Sales (7) (16) (11) (16)
Settlements 0 0 0 0
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 1 0 (1)
Transfers into level 3 (4) 0 0 2
Transfers out of level 3 0 0 0 (42)
Balance, end of period 19 13 19 13
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period 1 1 1 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 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 347 109 286 80
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) (2) 0 (2) 0
Investment gains (losses), net 3 0 3 0
Subtotal 1 0 1 0
Other comprehensive income (loss) 0 0 0 0
Purchases 56 18 120 47
Debt issuances 0 0 0 0
Sales (13) 0 (15) 0
Settlements 0 0 0 0
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 2 0 2 0
Transfers out of level 3 0 0 (1) 0
Balance, end of period 393 127 393 127
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 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 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   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 2   (1)  
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   0  
Change in fair value of Modco payable 1   4  
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 3   3  
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  
Notes issued by consolidated VIEs | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period (293) (168) (254) (172)
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 0 0 0 0
Investment gains (losses), net 0 0 0 0
Subtotal 0 0 0 0
Other comprehensive income (loss) 0 0 0 0
Purchases 0 0 0 0
Debt issuances (28) (2) (72) (3)
Sales 0 0 0 0
Settlements 0 (12) (5) (17)
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 0 0 0 0
Transfers out of level 3 0 0 0 0
Balance, end of period (321) (158) (321) (158)
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 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 0
Contingent Payment Arrangement | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period (9) (8) (9) (9)
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 0 0 0 0
Investment gains (losses), net 0 0 0 0
Subtotal 0   0 0
Other comprehensive income (loss) 0 0 0 0
Purchases 0 0 0 0
Debt issuances 0 0 0 0
Sales 0 0 0 0
Settlements 0 0 0 (1)
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 0 0 0 0
Transfers out of level 3 0 0 0 0
Balance, end of period (9) (8) (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 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 0
Residential mortgage-backed | Level 3        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period 0 0 0 0
Total gains and (losses), realized and unrealized, included in:        
Net investment income (loss) 0 0 0 0
Investment gains (losses), net 0 0 0 0
Subtotal 0 0 0 0
Other comprehensive income (loss) 0 1 0 1
Purchases 22 14 22 14
Debt issuances 0   0 0
Sales 0 0 0 (3)
Settlements 0 (3) 0 0
Change in fair value of Modco payable 0 0 0 0
Other 0 0 0 0
Activity related to consolidated VIEs/VOEs 0 0 0 0
Transfers into level 3 0 19 0 19
Transfers out of level 3 0 0 0 0
Balance, end of period 22 31 22 31
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 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 $ 1