Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases - Commercial Loans - Impaired Loans (Details)

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Outstanding Loans and Leases - Commercial Loans - Impaired Loans (Details) - Commercial Portfolio Segment - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Impaired [Line Items]      
Lending commitments $ 445 $ 297  
Commercial Real Estate      
Unpaid Principal Balance      
With no recorded allowance 67 0  
With an allowance recorded 322 247  
Total 389 247  
Carrying Value      
With no recorded allowance 58 0  
With an allowance recorded 236 162  
Total 294 162  
Related Allowance 64 16  
Average Carrying Value      
With no recorded allowance 96 44 $ 69
With an allowance recorded 149 46 73
Total 245 90 142
Commercial lease financing      
Unpaid Principal Balance      
With no recorded allowance 12 0  
With an allowance recorded 57 71  
Total 69 71  
Carrying Value      
With no recorded allowance 12 0  
With an allowance recorded 51 71  
Total 63 71  
Related Allowance 1 0  
Average Carrying Value      
With no recorded allowance 5 3 0
With an allowance recorded 73 42 8
Total 78 45 8
Small Business Commercial      
Unpaid Principal Balance      
With an allowance recorded 91 83  
Total 91 83  
Carrying Value      
With an allowance recorded 77 72  
Total 77 72  
Related Allowance 30 29  
Average Carrying Value      
With an allowance recorded 75 73 73
Total 75 73 73
United States      
Unpaid Principal Balance      
With no recorded allowance 534 638  
With an allowance recorded 1,776 1,437  
Total 2,310 2,075  
Carrying Value      
With no recorded allowance 520 616  
With an allowance recorded 1,574 1,270  
Total 2,094 1,886  
Related Allowance 216 121  
Average Carrying Value      
With no recorded allowance 635 655 772
With an allowance recorded 1,316 1,162 1,260
Total 1,951 1,817 2,032
Non United States      
Unpaid Principal Balance      
With no recorded allowance 123 93  
With an allowance recorded 113 155  
Total 236 248  
Carrying Value      
With no recorded allowance 123 93  
With an allowance recorded 113 149  
Total 236 242  
Related Allowance 9 30  
Average Carrying Value      
With no recorded allowance 79 43 46
With an allowance recorded 218 327 463
Total $ 297 $ 370 $ 509