Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Nonperforming, Credit Quality (Details)

v3.10.0.1
Outstanding Loans and Leases - Nonperforming, Credit Quality (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases $ 5,897 $ 6,470
Accruing past due 90 days or more $ 3,689 $ 4,415
Threshold period past due for nonperforming status of financing receivables 90 days 90 days
Residential Mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Accruing past due 90 days or more $ 742 $ 1,000
Consumer Portfolio Segment    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 4,639 5,166
Accruing past due 90 days or more 3,383 4,170
Consumer real estate | Core Portfolio Residential Mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 1,052 1,087
Accruing past due 90 days or more 344 417
Consumer real estate | Core Portfolio, Home Equity Financing Receivable    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 1,077 1,079
Accruing past due 90 days or more 0 0
Consumer real estate | Non-core Portfolio, Residential Financing Receivable    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 1,088 1,389
Accruing past due 90 days or more 2,139 2,813
Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 1,375 1,565
Accruing past due 90 days or more 0 0
Credit card and other consumer | Credit Card Receivable | United States    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Accruing past due 90 days or more 865 900
Credit card and other consumer | Direct/Indirect Consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 47 46
Accruing past due 90 days or more 35 40
Credit card and other consumer | Other consumer    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 0 0
Accruing past due 90 days or more 0 0
Commercial Portfolio Segment    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 1,258 1,304
Accruing past due 90 days or more $ 306 245
Threshold period past due for nonperforming status of financing receivables 90 days  
Commercial Portfolio Segment | United States    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases $ 881 814
Accruing past due 90 days or more 221 144
Commercial Portfolio Segment | Non United States    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 170 299
Accruing past due 90 days or more 0 3
Commercial Portfolio Segment | Commercial Real Estate    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 117 112
Accruing past due 90 days or more 0 4
Commercial Portfolio Segment | Commercial Lease Financing    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 34 24
Accruing past due 90 days or more 12 19
Commercial Portfolio Segment | Small Business Commercial    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases 56 55
Accruing past due 90 days or more 73 75
Federal Housing Administration | Residential Mortgage    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonperforming loans and leases $ 1,700 $ 2,200