v3.26.3
Derivatives (Gross Interest Rate Swaps and Collateral Pledge) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Derivative Assets    
Asset Derivatives $ 148 $ 84
Derivative Liabilities    
Derivative liability 285 179
Interest rate contracts    
Derivative Assets    
Derivative assets gross amounts offsetting the balance sheets 0 0
Asset Derivatives 146 84
Derivative asset, subject to master netting arrangement, collateral, obligation to return security not offset 0 26
Derivative asset, subject to master netting arrangement, collateral, obligation to return cash not offset 146 35
Derivative asset, subject to master netting arrangement, before offset of collateral 0 23
Derivative Liabilities    
Derivative liability, gross amounts offset in balance sheets 0 0
Derivative liability 279 179
Derivative liability, subject to master netting arrangement, collateral, right to reclaim security not offset 0 26
Derivative liability, subject to master netting arrangement, collateral, right to reclaim cash not offset 0 0
Derivative liability, subject to master netting arrangement, before offset of collateral 279 153
Interest rate contracts | Not Designated as Hedging Instrument    
Derivative Assets    
Derivative assets, gross amounts of recognized assets 146 84
Derivative Liabilities    
Derivative liability, subject to master netting arrangement, before offset $ 279 $ 179