v3.25.4
Shareholder's Equity - Changes in AOCI Components (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Changes in balances of each component of AOCI, net of tax      
Beginning balance $ 5,228 $ 4,729 $ 3,803
OCI before reclassifications 1,018 (157) 756
Amounts reclassified from AOCI (2) 15 24
Total other comprehensive income (loss), net of tax 1,016 (142) 780
Ending balance 6,549 5,228 4,729
Total AOCI      
Changes in balances of each component of AOCI, net of tax      
Beginning balance (1,908) (1,766) (2,546)
Total other comprehensive income (loss), net of tax 1,016 (142) 780
Ending balance (892) (1,908) (1,766)
Net Unrealized Gains (Losses) on Securities      
Changes in balances of each component of AOCI, net of tax      
Beginning balance (1,452) (1,241) (2,043)
OCI before reclassifications 946 (226) 779
Amounts reclassified from AOCI (2) 15 23
Total other comprehensive income (loss), net of tax 944 (211) 802
Ending balance (508) (1,452) (1,241)
Net Unrealized Gains (Losses) on Derivatives      
Changes in balances of each component of AOCI, net of tax      
Beginning balance 5 5 3
OCI before reclassifications (9) 0 2
Amounts reclassified from AOCI 0 0 0
Total other comprehensive income (loss), net of tax (9) 0 2
Ending balance (4) 5 5
Effect of changes in discount rate assumptions on certain long-duration contracts      
Changes in balances of each component of AOCI, net of tax      
Beginning balance 27 (126) (72)
OCI before reclassifications (72) 153 (54)
Amounts reclassified from AOCI 0 0 0
Total other comprehensive income (loss), net of tax (72) 153 (54)
Ending balance (45) 27 (126)
Effect of changes in instrument-specific credit risk on market risk benefits (“MRBs”)      
Changes in balances of each component of AOCI, net of tax      
Beginning balance (147) (85) (20)
OCI before reclassifications 20 (62) (65)
Amounts reclassified from AOCI 0 0 0
Total other comprehensive income (loss), net of tax 20 (62) (65)
Ending balance (127) (147) (85)
Defined Benefit Plans      
Changes in balances of each component of AOCI, net of tax      
Beginning balance (45) (60) (75)
OCI before reclassifications 14 15 14
Amounts reclassified from AOCI 0 0 1
Total other comprehensive income (loss), net of tax 14 15 15
Ending balance (31) (45) (60)
Foreign Currency Translation      
Changes in balances of each component of AOCI, net of tax      
Beginning balance (295) (258) (338)
OCI before reclassifications 118 (37) 80
Amounts reclassified from AOCI 0 0 0
Total other comprehensive income (loss), net of tax 118 (37) 80
Ending balance (177) (295) (258)
Other      
Changes in balances of each component of AOCI, net of tax      
Beginning balance (1) (1) (1)
OCI before reclassifications 1 0 0
Amounts reclassified from AOCI 0 0 0
Total other comprehensive income (loss), net of tax 1 0 0
Ending balance $ 0 $ (1) $ (1)