v3.25.2
Credit Quality and the Allowance for Loan and Lease Losses - Summary of Loans That Were Modified for Borrowers Experiencing Financial Difficulty (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Jun. 30, 2024
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months $ 804 $ 460
Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 685 415
30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 22 22
90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 97 23
Commercial | Commercial and industrial loans    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 386 210
Commercial | Commercial and industrial loans | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 321 199
Commercial | Commercial and industrial loans | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 3 3
Commercial | Commercial and industrial loans | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 62 8
Commercial | Commercial mortgage owner-occupied loans    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 123 34
Commercial | Commercial mortgage owner-occupied loans | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 100 34
Commercial | Commercial mortgage owner-occupied loans | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Commercial | Commercial mortgage owner-occupied loans | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 23 0
Commercial | Commercial mortgage nonowner-occupied loans    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 51 50
Commercial | Commercial mortgage nonowner-occupied loans | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 51 50
Commercial | Commercial mortgage nonowner-occupied loans | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Commercial | Commercial mortgage nonowner-occupied loans | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Commercial | Commercial construction loans    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 118 23
Commercial | Commercial construction loans | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 118 23
Commercial | Commercial construction loans | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Commercial | Commercial construction loans | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Residential Mortgage    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 87 100
Residential Mortgage | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 63 74
Residential Mortgage | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 15 15
Residential Mortgage | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 9 11
Consumer | Home equity    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 15 15
Consumer | Home equity | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 13 13
Consumer | Home equity | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 1 1
Consumer | Home equity | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 1 1
Consumer | Credit card    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 19 23
Consumer | Credit card | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 14 17
Consumer | Credit card | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 3 3
Consumer | Credit card | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 2 3
Consumer | Solar energy installation loans    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 2 1
Consumer | Solar energy installation loans | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 2 1
Consumer | Solar energy installation loans | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Consumer | Solar energy installation loans | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Consumer | Other consumer loans    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 3 4
Consumer | Other consumer loans | Current    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 3 4
Consumer | Other consumer loans | 30-89 days past due    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months 0 0
Consumer | Other consumer loans | 90 Days or More    
Financing Receivable, Recorded Investment, Past Due    
Financing receivable, excluding accrued interest, modified, after 12 months $ 0 $ 0