v3.26.1
Derivatives (Credit Risk on Freestanding Derivatives) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Credit Derivatives [Line Items]    
Estimated fair value of derivatives in a net liability position $ 3,449 $ 3,957
Derivative, Collateral, Right to Reclaim Cash 75 68
Derivative Asset, Fair Value, Amount Not Offset Against Collateral 7,814 7,178
Derivative Liability, Fair Value, Amount Not Offset Against Collateral 7,036 7,547
Derivative Asset, Fair Value, Amount Offset Against Collateral 112 32
Derivative Liability, Fair Value, Amount Offset Against Collateral 13 13
Derivative assets (2) 7,665 7,045
Derivative liabilities (2) 6,993 7,548
Derivative, Collateral, Obligation to Return Cash 66 29
Collateral Amount Not Provided Due to Downgrade Threshold 15  
Customer Securities for which Entity has Right to Sell or Repledge, Fair Value of Securities Sold or Repledged 0  
Derivative [Line Items]    
Derivative assets (2) 7,665 7,045
Derivative liabilities (2) 6,993 7,548
Exchange Traded [Member]    
Credit Derivatives [Line Items]    
Derivative, Collateral, Right to Reclaim Securities 231 215
Gross estimated fair value of derivative assets 28 6
Gross estimated fair value of derivative liabilities 15 6
Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset (2) 0
Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset (2) 0
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset 0 0
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset (4) (1)
Derivative Asset, Collateral, Obligation to Return Securities, Offset 0 0
Derivative Liability, Collateral, Right to Reclaim Securities, Offset (9) (5)
Over the Counter [Member]    
Credit Derivatives [Line Items]    
Derivative, Collateral, Right to Reclaim Securities 1,300 1,300
Gross estimated fair value of derivative assets 7,612 7,053
Gross estimated fair value of derivative liabilities 6,400 6,972
Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset (2,951) (3,015)
Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset (2,951) (3,015)
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset (2,323) (1,808)
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset 0 0
Derivative Asset, Collateral, Obligation to Return Securities, Offset (2,279) (2,211)
Derivative Liability, Collateral, Right to Reclaim Securities, Offset (3,436) (3,945)
Derivative, Collateral, Obligation to Return Securities 392 381
Exchange Cleared [Member]    
Credit Derivatives [Line Items]    
Derivative, Collateral, Right to Reclaim Securities 765 751
Gross estimated fair value of derivative assets 174 119
Gross estimated fair value of derivative liabilities 621 569
Derivative Asset, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset (7) (7)
Derivative Liability, Subject to Master Netting Arrangement, Deduction of Financial Instrument Not Offset (7) (7)
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset (140) (105)
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset (609) (555)
Derivative Asset, Collateral, Obligation to Return Securities, Offset 0 0
Derivative Liability, Collateral, Right to Reclaim Securities, Offset (5) (6)
Fixed maturity securities AFS    
Credit Derivatives [Line Items]    
Estimated fair value of collateral provided: 4,177 4,672
Accrued Liabilities [Member]    
Credit Derivatives [Line Items]    
Derivative assets (2) 149 133
Derivative liabilities (2) 43 (1)
Derivative [Line Items]    
Derivative assets (2) 149 133
Derivative liabilities (2) 43 (1)
Derivatives
Subject to
Credit-
Contingent
Provisions    
Credit Derivatives [Line Items]    
Estimated fair value of derivatives in a net liability position 3,434 3,946
Derivatives
Subject to
Credit-
Contingent
Provisions | Fixed maturity securities AFS    
Credit Derivatives [Line Items]    
Estimated fair value of collateral provided: 4,161 4,661
Derivatives
Not Subject
to Credit-
Contingent
Provisions    
Credit Derivatives [Line Items]    
Estimated fair value of derivatives in a net liability position 15 11
Derivatives
Not Subject
to Credit-
Contingent
Provisions | Fixed maturity securities AFS    
Credit Derivatives [Line Items]    
Estimated fair value of collateral provided: $ 16 $ 11