v3.24.2
Accumulated Other Comprehensive (Loss) Income - Reconciliation of the Components of Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2024
Jun. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance $ 40,710 $ 39,405 $ 37,460 $ 36,330 $ 39,405 $ 36,330
Other comprehensive income (loss) (22) (52) (116) 442 (74) 326
Other comprehensive income attributable to noncontrolling interests, net of tax benefit (expense) of $0, $0, $0 and $0, respectively 0   0   0 (2)
Ending balance 42,297 40,710 38,312 37,460 42,297 38,312
AOCI Including Portion Attributable to Noncontrolling Interest            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (1,365) (1,313) (2,050) (2,490) (1,313) (2,490)
Ending balance (1,387) (1,365) (2,166) (2,050) (1,387) (2,166)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Including Noncontrolling Interest            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (688) (632) (1,330) (1,755) (632) (1,755)
Other comprehensive income (loss) before reclassifications, net of tax benefit (expense) of $26, $61, $75 and $(25), respectively (82)   (191)   (245) 146
Amounts reclassified from accumulated other comprehensive income, net of tax benefit of $(17), $(23), $(49) and $(51), respectively 56   72   163 162
Other comprehensive income (loss) (26)   (119)   (82) 308
Ending balance (714) (688) (1,449) (1,330) (714) (1,449)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Noncontrolling Interest            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Other comprehensive income attributable to noncontrolling interests, net of tax benefit (expense) of $0, $0, $0 and $0, respectively 0   0   0 (2)
Non-credit components of impairments on investments:            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (3) (3) (5) (3) (3) (3)
Other comprehensive income (loss) 0   (1)   0 (3)
Ending balance (3) (3) (6) (5) (3) (6)
Net cash flow hedges:            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (209) (211) (218) (229) (211) (229)
Other comprehensive income (loss) 4   4   6 15
Ending balance (205) (209) (214) (218) (205) (214)
Pension and other postretirement benefits:            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (455) (459) (497) (499) (459) (499)
Other comprehensive income (loss) 4   3   8 5
Ending balance (451) (455) (494) (497) (451) (494)
Future policy benefits:            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance 8 10 15 13 10 13
Other comprehensive income (loss) 1   (3)   (1) (1)
Ending balance 9 8 12 15 9 12
Foreign currency translation adjustments:            
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]            
Beginning balance (18) (18) (15) (17) (18) (17)
Other comprehensive income (loss) (5)   0   (5) 2
Ending balance $ (23) $ (18) $ (15) $ (15) $ (23) $ (15)