v3.26.1
Shares and Stockholders’ Equity - Components and Changes in AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Change in our unrealized gain on derivative instruments in accumulated OCI    
Balance as of beginning-of-year $ 10,906  
Balance as of end-of-period 10,212 $ 8,193
Unrealized Gain (Loss) on Fixed Maturity AFS Securities and Certain    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Balance as of beginning-of-year (4,413) (6,239)
Income tax benefit (expense) 278 (121)
Reclassification adjustment for gains (losses) included in net income (loss) (13) (90)
Income tax benefit (expense) 3 19
Balance as of end-of-period (5,444) (5,715)
Unrealized holding gains (losses) arising during the year    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Changes arising during the year (1,222) 744
Change in foreign currency exchange rate adjustment    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Changes arising during the year (78) 156
Change in future contract benefits and policyholder account balances, net of reinsurance    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Changes arising during the year (19) (326)
Unrealized Gain (Loss) on Derivative Instruments    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Balance as of beginning-of-year 450 638
Income tax benefit (expense) (30) (4)
Reclassification adjustment for gains (losses) included in net income (loss) 18 21
Income tax benefit (expense) (4) (4)
Balance as of end-of-period 544 637
Unrealized holding gains (losses) arising during the period - cash flow hedges    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Changes arising during the year 62 173
Change in foreign currency exchange rate adjustment    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Changes arising during the year 76 (153)
Market Risk Benefit Non-Performance Risk Gain (Loss)    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Balance as of beginning-of-year (262) 146
Adjustment arising during the year 560 403
Income tax benefit (expense) (118) (85)
Balance as of end-of-period 180 464
Policyholder Liability Discount Rate Remeasurement Gain (Loss)    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Balance as of beginning-of-year 480 744
Adjustment arising during the year 109 (141)
Income tax benefit (expense) (23) 30
Balance as of end-of-period 566 633
Foreign Currency Translation Adjustment    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Balance as of beginning-of-year (18) (29)
Foreign currency translation adjustment arising during the year (3) 5
Balance as of end-of-period (21) (24)
Funded Status of Employee Benefit Plans    
Change in our unrealized gain on derivative instruments in accumulated OCI    
Balance as of beginning-of-year (295) (296)
Adjustment arising during the year 3 (5)
Balance as of end-of-period $ (292) $ (301)