v3.25.2
SHAREHOLDERS' EQUITY - Changes in Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Accumulated Other Comprehensive Income [Roll Forward]        
Balance, beginning of period $ 26,338 $ 23,537 $ 26,098 $ 21,985
Other comprehensive income (loss), net of tax 1,368 1,810 2,487 2,228
Balance, end of period 27,200 26,047 27,200 26,047
Unrealized Foreign Currency Translation Gains (Losses)        
Accumulated Other Comprehensive Income [Roll Forward]        
Balance, beginning of period (4,549) (4,666) (4,998) (4,069)
Other comprehensive income (loss) before reclassifications net of tax 267 (425) 716 (1,022)
Amounts reclassified from accumulated other comprehensive income (loss) net of tax 0 0 0 0
Other comprehensive income (loss), net of tax 267 (425) 716 (1,022)
Balance, end of period (4,282) (5,091) (4,282) (5,091)
Unrealized Gains (Losses) on Fixed Maturity Securities        
Accumulated Other Comprehensive Income [Roll Forward]        
Balance, beginning of period (1,233) 1,092 24 1,139
Other comprehensive income (loss) before reclassifications net of tax (606) (652) (1,831) (566)
Amounts reclassified from accumulated other comprehensive income (loss) net of tax 11 (39) (21) (172)
Other comprehensive income (loss), net of tax (595) (691) (1,852) (738)
Balance, end of period (1,828) 401 (1,828) 401
Unrealized Gains (Losses) on Derivatives        
Accumulated Other Comprehensive Income [Roll Forward]        
Balance, beginning of period (18) (26) (20) (22)
Other comprehensive income (loss) before reclassifications net of tax 0 3 1 (2)
Amounts reclassified from accumulated other comprehensive income (loss) net of tax 1 1 2 2
Other comprehensive income (loss), net of tax 1 4 3 0
Balance, end of period (17) (22) (17) (22)
Effect of Changes in Discount Rate Assumptions        
Accumulated Other Comprehensive Income [Roll Forward]        
Balance, beginning of period 3,899 (1,495) 2,006 (2,560)
Other comprehensive income (loss) before reclassifications net of tax 1,695 2,920 3,588 3,985
Amounts reclassified from accumulated other comprehensive income (loss) net of tax 0 0 0 0
Other comprehensive income (loss), net of tax 1,695 2,920 3,588 3,985
Balance, end of period 5,594 1,425 5,594 1,425
Pension Liability Adjustment        
Accumulated Other Comprehensive Income [Roll Forward]        
Balance, beginning of period 42 (7) 10 (8)
Other comprehensive income (loss) before reclassifications net of tax (1) 3 32 4
Amounts reclassified from accumulated other comprehensive income (loss) net of tax 1 (1) 0 (1)
Other comprehensive income (loss), net of tax 0 2 32 3
Balance, end of period 42 (5) 42 (5)
Accumulated Other Comprehensive Income (Loss)        
Accumulated Other Comprehensive Income [Roll Forward]        
Balance, beginning of period (1,859) (5,102) (2,978) (5,520)
Other comprehensive income (loss) before reclassifications net of tax 1,355 1,849 2,506 2,399
Amounts reclassified from accumulated other comprehensive income (loss) net of tax 13 (39) (19) (171)
Other comprehensive income (loss), net of tax 1,368 1,810 2,487 2,228
Balance, end of period $ (491) $ (3,292) $ (491) $ (3,292)