XML 79 R65.htm IDEA: XBRL DOCUMENT v3.7.0.1
Allowance for Loan and Lease Losses - Components of Allowance for Loan and Lease Losses by Impairment Methodology (Detail) - USD ($)
$ in Millions
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Allowance for loan and lease losses by impairment methodology:            
Collectively evaluated $ 6,677   $ 6,007      
Asset-specific 462   465      
Total allowance for loan and lease losses 7,170   6,503      
Loans held for investment by impairment methodology:            
Collectively evaluated 228,654   227,555      
Asset-specific 2,753   2,960      
Loans held for investment $ 244,302   $ 245,586 $ 234,603    
Allowance as a percentage of period-end loans held for investment 2.93%   2.65%      
Credit Card Portfolio Segment [Member]            
Allowance for loan and lease losses by impairment methodology:            
Collectively evaluated $ 4,945   $ 4,367      
Asset-specific 265   239      
Total allowance for loan and lease losses 5,210 $ 5,058 4,606 4,086 $ 3,785 $ 3,654
Loans held for investment by impairment methodology:            
Collectively evaluated 100,845   104,835      
Asset-specific 745   715      
Loans held for investment $ 101,590   $ 105,552      
Allowance as a percentage of period-end loans held for investment 5.13%   4.36%      
Consumer Portfolio Segment [Member]            
Allowance for loan and lease losses by impairment methodology:            
Collectively evaluated $ 1,113   $ 1,016      
Asset-specific 56   57      
Total allowance for loan and lease losses 1,199 1,163 1,102 972 914 868
Loans held for investment by impairment methodology:            
Collectively evaluated 61,859   57,862      
Asset-specific 743   736      
Loans held for investment $ 74,973   $ 73,054      
Allowance as a percentage of period-end loans held for investment 1.60%   1.51%      
Commercial Banking            
Allowance for loan and lease losses by impairment methodology:            
Collectively evaluated $ 616   $ 622      
Asset-specific 141   169      
Total allowance for loan and lease losses 758 761 793 821 714 604
Loans held for investment by impairment methodology:            
Collectively evaluated 65,883   64,794      
Asset-specific 1,265   1,509      
Loans held for investment $ 67,672   $ 66,916      
Allowance as a percentage of period-end loans held for investment 1.12%   1.19%      
Other            
Allowance for loan and lease losses by impairment methodology:            
Collectively evaluated $ 3   $ 2      
Asset-specific 0   0      
Total allowance for loan and lease losses 3 $ 2 2 $ 2 $ 3 $ 4
Loans held for investment by impairment methodology:            
Collectively evaluated 67   64      
Asset-specific 0   0      
Loans held for investment $ 67   $ 64      
Allowance as a percentage of period-end loans held for investment 4.48%   3.13%      
Receivables Acquired with Deteriorated Credit Quality [Member]            
Allowance for loan and lease losses by impairment methodology:            
Financing Receivable, Allowance for Credit Losses $ 31   $ 31      
Loans held for investment by impairment methodology:            
Loans held for investment 12,895   15,071      
Receivables Acquired with Deteriorated Credit Quality [Member] | Credit Card Portfolio Segment [Member]            
Allowance for loan and lease losses by impairment methodology:            
Financing Receivable, Allowance for Credit Losses 0   0      
Loans held for investment by impairment methodology:            
Loans held for investment 0   2      
Receivables Acquired with Deteriorated Credit Quality [Member] | Consumer Portfolio Segment [Member]            
Allowance for loan and lease losses by impairment methodology:            
Financing Receivable, Allowance for Credit Losses 30   29      
Loans held for investment by impairment methodology:            
Loans held for investment 12,371   14,456      
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial Banking            
Allowance for loan and lease losses by impairment methodology:            
Financing Receivable, Allowance for Credit Losses 1   2      
Loans held for investment by impairment methodology:            
Loans held for investment 524   613      
Receivables Acquired with Deteriorated Credit Quality [Member] | Other            
Allowance for loan and lease losses by impairment methodology:            
Financing Receivable, Allowance for Credit Losses 0   0      
Loans held for investment by impairment methodology:            
Loans held for investment $ 0   $ 0