Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Consumer Real Estate - Impaired Loans (Details)

v3.10.0.1
Outstanding Loans and Leases - Consumer Real Estate - Impaired Loans (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Financing Receivable, Impaired [Line Items]          
Loans and leases $ 935,824   $ 935,824   $ 936,749
Consumer real estate          
Financing Receivable, Impaired [Line Items]          
Real estate acquired through foreclosure 263   263   236
Loans with formal foreclosure proceeding in process 3,000   3,000    
Reclassified consumer real estate loans 151 $ 226 319 $ 426  
Consumer real estate | Residential Mortgage          
Unpaid Principal Balance          
With no recorded allowance 6,544   6,544   8,856
With an allowance recorded 2,482   2,482   2,908
Total 9,026   9,026   11,764
Carrying Value          
With no recorded allowance 5,223   5,223   6,870
With an allowance recorded 2,421   2,421   2,828
Total 7,644   7,644   9,698
Related Allowance 149   149   174
Average Carrying Value          
With no recorded allowance 5,362 7,886 5,978 8,192  
With an allowance recorded 2,482 3,647 2,597 3,723  
Total 7,844 11,533 8,575 11,915  
Interest Income Recognized          
With no recorded allowance 50 81 115 160  
With an allowance recorded 24 33 49 68  
Total 74 114 164 228  
Loans held for sale 1,200        
Gain (loss) on the sale of loans and leases receivable 572        
Consumer real estate | Home equity lines of credit          
Unpaid Principal Balance          
With no recorded allowance 3,545   3,545   3,622
With an allowance recorded 962   962   972
Total 4,507   4,507   4,594
Carrying Value          
With no recorded allowance 1,932   1,932   1,956
With an allowance recorded 894   894   900
Total 2,826   2,826   2,856
Related Allowance 178   178   $ 174
Average Carrying Value          
With no recorded allowance 1,944 1,999 1,953 2,000  
With an allowance recorded 891 868 889 842  
Total 2,835 2,867 2,842 2,842  
Interest Income Recognized          
With no recorded allowance 25 28 52 55  
With an allowance recorded 6 7 12 12  
Total 31 $ 35 64 $ 67  
Consumer real estate | Chapter Seven Bankruptcy          
Financing Receivable, Impaired [Line Items]          
Loans and leases 1,000   1,000    
Consumer real estate | Chapter Seven Bankruptcy | Nonperforming Financing Receivable          
Financing Receivable, Impaired [Line Items]          
Loans and leases 263   263    
Consumer real estate | Chapter Seven Bankruptcy | Fully Insured Loans | Federal Housing Administration          
Financing Receivable, Impaired [Line Items]          
Loans and leases $ 382   $ 382