v3.26.1
Derivatives - Schedule of Derivative Liabilities and Collateral Pledged (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Gross amounts of recognized liabilities $ 410 $ 376
Gross amounts offset in the Balance Sheets 0 0
Net amounts of liabilities presented in the Balance Sheets 410 376
Derivative assets  available for offset (66) (83)
Collateral pledged (113) (98)
Net amount 231 195
Derivative liabilities not subject to master netting agreements 22 26
Interest rate derivative contracts    
Derivative [Line Items]    
Gross amounts of recognized liabilities 403 368
Gross amounts offset in the Balance Sheets 0 0
Net amounts of liabilities presented in the Balance Sheets 403 368
Derivative assets  available for offset (63) (79)
Collateral pledged (110) (94)
Net amount 230 195
Forward contracts    
Derivative [Line Items]    
Gross amounts of recognized liabilities 7 8
Gross amounts offset in the Balance Sheets 0 0
Net amounts of liabilities presented in the Balance Sheets 7 8
Derivative assets  available for offset (3) (4)
Collateral pledged (3) (4)
Net amount $ 1 $ 0