v3.26.1
Equity (Components of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance $ 6,833 $ 5,024
OCI before reclassifications (568) 744
Deferred income tax benefit (expense) (3) 119 (156)
AOCI before reclassifications, net of income tax (4,178) (4,690)
Amounts reclassified from AOCI 27 26
Deferred income tax benefit (expense) (3) (5) (6)
Amounts reclassified from AOCI, net of income tax 22 20
Ending Balance 5,628 5,304
Unrealized Investment Gains (Losses), Net of Related Offsets (1)    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance (3,517) (5,137)
OCI before reclassifications (968) 928
Deferred income tax benefit (expense) (3) 203 (194)
AOCI before reclassifications, net of income tax (4,282) (4,403)
Amounts reclassified from AOCI 25 31
Deferred income tax benefit (expense) (3) (5) (7)
Amounts reclassified from AOCI, net of income tax 20 24
Ending Balance (4,262) (4,379)
Unrealized Gains (Losses) on Derivatives    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance 177 371
OCI before reclassifications 98 (17)
Deferred income tax benefit (expense) (3) (21) 4
AOCI before reclassifications, net of income tax 254 358
Amounts reclassified from AOCI 1 (7)
Deferred income tax benefit (expense) (3) 0 1
Amounts reclassified from AOCI, net of income tax 1 (6)
Ending Balance 255 352
Changes in Nonperformance Risk on Market Risk Benefits    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance (1,255) (1,603)
OCI before reclassifications 110 (27)
Deferred income tax benefit (expense) (3) (23) 5
AOCI before reclassifications, net of income tax (1,168) (1,625)
Amounts reclassified from AOCI 0 0
Deferred income tax benefit (expense) (3) 0 0
Amounts reclassified from AOCI, net of income tax 0 0
Ending Balance (1,168) (1,625)
Changes in Discount Rates on the Liability for Future Policy Benefits    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance 888 1,149
OCI before reclassifications 199 (155)
Deferred income tax benefit (expense) (3) (42) 33
AOCI before reclassifications, net of income tax 1,045 1,027
Amounts reclassified from AOCI 0 0
Deferred income tax benefit (expense) (3) 0 0
Amounts reclassified from AOCI, net of income tax 0 0
Ending Balance 1,045 1,027
Other (2)    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance (22) (58)
OCI before reclassifications (7) 15
Deferred income tax benefit (expense) (3) 2 (4)
AOCI before reclassifications, net of income tax (27) (47)
Amounts reclassified from AOCI 1 2
Deferred income tax benefit (expense) (3) 0 0
Amounts reclassified from AOCI, net of income tax 1 2
Ending Balance (26) (45)
AOCI Attributable to Parent    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning Balance (3,729) (5,278)
Ending Balance $ (4,156) $ (4,670)