v3.26.1
Loan Sale and Servicing Activities and Variable Interest Entities (Loan Sale and Servicing Activities and Variable Interest Entities) (Narrative) (Details) - Low Income Housing Tax Credit And Market Tax Credit - USD ($)
$ in Billions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Amortization recognized $ 0.2 $ 0.1
Tax credits 0.2 0.2
Other tax benefits (March 31,2026 and December 31, 2025 Less than $0.1 billion) $ 0.1 $ 0.1