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, 2018
Dec. 31, 2017
Dec. 31, 2016
Financing Receivable, Impaired [Line Items]      
Lending commitments $ 297 $ 205  
Commercial Real Estate      
Unpaid Principal Balance      
With no recorded allowance 0 83  
With an allowance recorded 247 133  
Total 247 216  
Carrying Value      
With no recorded allowance 0 80  
With an allowance recorded 162 41  
Total 162 121  
Related Allowance 16 4  
Average Carrying Value      
With no recorded allowance 44 69 $ 67
With an allowance recorded 46 73 92
Total 90 142 159
Commercial lease financing      
Unpaid Principal Balance      
With no recorded allowance 0 0  
With an allowance recorded 71 20  
Total 71 20  
Carrying Value      
With no recorded allowance 0 0  
With an allowance recorded 71 18  
Total 71 18  
Related Allowance 0 3  
Average Carrying Value      
With no recorded allowance 3 0 0
With an allowance recorded 42 8 2
Total 45 8 2
Small Business Commercial      
Unpaid Principal Balance      
With an allowance recorded 83 84  
Total 83 84  
Carrying Value      
With an allowance recorded 72 70  
Total 72 70  
Related Allowance 29 27  
Average Carrying Value      
With an allowance recorded 73 73 87
Total 73 73 87
United States      
Unpaid Principal Balance      
With no recorded allowance 638 576  
With an allowance recorded 1,437 1,393  
Total 2,075 1,969  
Carrying Value      
With no recorded allowance 616 571  
With an allowance recorded 1,270 1,109  
Total 1,886 1,680  
Related Allowance 121 98  
Average Carrying Value      
With no recorded allowance 655 772 787
With an allowance recorded 1,162 1,260 1,569
Total 1,817 2,032 2,356
Non United States      
Unpaid Principal Balance      
With no recorded allowance 93 14  
With an allowance recorded 155 528  
Total 248 542  
Carrying Value      
With no recorded allowance 93 11  
With an allowance recorded 149 507  
Total 242 518  
Related Allowance 30 58  
Average Carrying Value      
With no recorded allowance 43 46 34
With an allowance recorded 327 463 409
Total $ 370 $ 509 $ 443