v3.26.1
Derivatives - Schedule of Derivative Assets and Collateral Received (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivative [Line Items]    
Gross amounts of recognized assets $ 328 $ 327
Gross amounts offset in the Balance Sheets 0 0
Net amounts of assets presented in the Balance Sheets 328 327
Derivative liabilities available for offset (66) (83)
Collateral received (243) (210)
Net amount 19 34
Derivative assets not subject to master netting agreements (less than) 1 1
Interest rate derivative contracts    
Derivative [Line Items]    
Gross amounts of recognized assets 321 320
Gross amounts offset in the Balance Sheets 0 0
Net amounts of assets presented in the Balance Sheets 321 320
Derivative liabilities available for offset (63) (79)
Collateral received (242) (209)
Net amount 16 32
Forward contracts    
Derivative [Line Items]    
Gross amounts of recognized assets 7 7
Gross amounts offset in the Balance Sheets 0 0
Net amounts of assets presented in the Balance Sheets 7 7
Derivative liabilities available for offset (3) (4)
Collateral received (1) (1)
Net amount $ 3 $ 2