v3.26.1
Equity (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance $ 32,787 $ 28,187
Income tax benefit (expense) (230) (395)
Ending Balance 32,319 30,203
Foreign  Currency Translation Adjustment    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance (3,183) (3,615)
Change in OCI before reclassifications (58) 398
Amounts reclassified from AOCI (10) (12)
Income tax benefit (expense) (29) 58
Ending Balance (3,280) (3,171)
Total net unrealized investment gains (losses)    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance (18,789) (18,687)
Change in OCI before reclassifications (5,339) (325)
Amounts reclassified from AOCI 603 98
Income tax benefit (expense) 925 170
Ending Balance (22,600) (18,744)
Interest rate remeasurement of Liability for Future Policy Benefits    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance 21,039 17,306
Change in OCI before reclassifications 4,435 2,036
Amounts reclassified from AOCI 0 0
Income tax benefit (expense) (1,078) (588)
Ending Balance 24,396 18,754
Gains (Losses) from Changes in Non-performance Risk on Market Risk Benefits    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance 378 532
Change in OCI before reclassifications 208 167
Amounts reclassified from AOCI 0 0
Income tax benefit (expense) (43) (35)
Ending Balance 543 664
Pension and Postretirement Unrecognized Net Periodic Benefit (Cost)    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance (2,522) (2,247)
Change in OCI before reclassifications 0 (4)
Amounts reclassified from AOCI 18 7
Income tax benefit (expense) (5) 0
Ending Balance (2,509) (2,244)
Accumulated Other Comprehensive Income (Loss)    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance (3,077) (6,711)
Change in OCI before reclassifications (754) 2,272
Amounts reclassified from AOCI 611 93
Income tax benefit (expense) (230) (395)
Ending Balance (3,450) (4,741)
Cash Flow Hedging | Total net unrealized investment gains (losses)    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance (231) 1,780
Ending Balance 536 1,659
Fair Value Hedging | Total net unrealized investment gains (losses)    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning Balance (123) (64)
Ending Balance $ (139) $ (134)