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Asset Quality - Schedule of Aging Analysis of Past Due and Current Loans (Details) - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total loans | $ 110,430 | $ 106,541
Accrued interest | 453 | 459
Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 81,568 | 76,509
Accrued interest | 338 | 338
Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 28,862 | 30,032
Accrued interest | 114 | 121
Non-performing Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 809 | 615
Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 620 | 420
Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 189 | 195
Current |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 109,398 | 105,607
Current | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 80,836 | 75,889
Current | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 28,562 | 29,718
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 81 | 148
30-59 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 31 | 88
30-59 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 50 | 60
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 57 | 72
60-89 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 35 | 37
60-89 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 22 | 35
90 and Greater Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 85 | 99
90 and Greater Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 46 | 75
90 and Greater Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 39 | 24
Total Past Due and Non-performing Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,032 | 934
Total Past Due and Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 732 | 620
Total Past Due and Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 300 | 314
Commercial and industrial | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 62,734 | 57,688
Commercial and industrial | Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 358 | 256
Commercial and industrial | Current | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 62,303 | 57,336
Commercial and industrial | 30-59 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 24 | 38
Commercial and industrial | 60-89 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 13 | 17
Commercial and industrial | 90 and Greater Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 36 | 41
Commercial and industrial | Total Past Due and Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 431 | 352
Total commercial real estate loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 16,837 | 16,551
Total commercial real estate loans | Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 256 | 157
Total commercial real estate loans | Current | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 16,543 | 16,293
Total commercial real estate loans | 30-59 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 7 | 47
Total commercial real estate loans | 60-89 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 22 | 20
Total commercial real estate loans | 90 and Greater Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9 | 34
Total commercial real estate loans | Total Past Due and Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 294 | 258
Commercial mortgage | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 13,941 | 13,707
Commercial mortgage | Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 256 | 157
Commercial mortgage | Current | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 13,648 | 13,450
Commercial mortgage | Current | Total commercial loans | Government National Mortgage Association (GNMA) |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 54 | 66
Commercial mortgage | 30-59 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 7 | 47
Commercial mortgage | 60-89 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 22 | 20
Commercial mortgage | 90 and Greater Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 8 | 33
Commercial mortgage | Total Past Due and Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 293 | 257
Construction | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 2,896 | 2,844
Construction | Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 0 | 0
Construction | Current | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 2,895 | 2,843
Construction | 30-59 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 0 | 0
Construction | 60-89 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 0 | 0
Construction | 90 and Greater Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1 | 1
Construction | Total Past Due and Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1 | 1
Commercial lease financing | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,997 | 2,270
Commercial lease financing | Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6 | 7
Commercial lease financing | Current | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1,990 | 2,260
Commercial lease financing | 30-59 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 0 | 3
Commercial lease financing | 60-89 Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 0 | 0
Commercial lease financing | 90 and Greater Days Past Due | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 1 | 0
Commercial lease financing | Total Past Due and Non-performing Loans | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 7 | 10
Real estate — residential mortgage | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 18,178 | 18,732
Real estate — residential mortgage | Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 100 | 104
Real estate — residential mortgage | Current | Total commercial loans | Government National Mortgage Association (GNMA) |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5 | 6
Real estate — residential mortgage | Current | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 18,052 | 18,593
Real estate — residential mortgage | 30-59 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 12 | 21
Real estate — residential mortgage | 60-89 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5 | 14
Real estate — residential mortgage | 90 and Greater Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9 | 0
Real estate — residential mortgage | Total Past Due and Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 126 | 139
Home equity loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5,408 | 5,703
Home equity loans | Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 79 | 80
Home equity loans | Current | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5,302 | 5,593
Home equity loans | 30-59 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 19 | 18
Home equity loans | 60-89 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5 | 7
Home equity loans | 90 and Greater Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 3 | 5
Home equity loans | Total Past Due and Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 106 | 110
Other consumer loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,349 | 4,644
Other consumer loans | Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4 | 4
Other consumer loans | Current | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 4,304 | 4,606
Other consumer loans | 30-59 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 14 | 15
Other consumer loans | 60-89 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9 | 10
Other consumer loans | 90 and Greater Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 18 | 9
Other consumer loans | Total Past Due and Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 45 | 38
Credit cards | Total commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 208 | 205
Credit cards | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 927 | 953
Credit cards | Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 6 | 7
Credit cards | Current | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 904 | 926
Credit cards | 30-59 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 5 | 6
Credit cards | 60-89 Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 3 | 4
Credit cards | 90 and Greater Days Past Due | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | 9 | 10
Credit cards | Total Past Due and Non-performing Loans | Total consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total loans | $ 23 | $ 27

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