Quarterly report pursuant to Section 13 or 15(d)

Allowance and Carrying Value of Outstanding Loans and Leases by Portfolio Segment (Details)

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Allowance and Carrying Value of Outstanding Loans and Leases by Portfolio Segment (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses $ 15,811 $ 16,618 $ 17,428 $ 21,235 $ 22,441 $ 24,179
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality 23,404   25,265      
Financing Receivable, Collectively Evaluated for Impairment 845,652 [1],[2]   856,341 [1],[2]      
Financing Receivable, Individually Evaluated for Impairment 31,942 [2],[3]   36,585 [2],[3]      
Carrying Value 900,998 [1],[2]   918,191 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 1.75% [1]   1.90% [1]      
Loans Receivable, Fair Value Disclosure 10,901   10,042      
Impaired Loans and Troubled Debt Restructurings [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 1,785 [3],[4]   2,087 [3],[4]      
Valuation Allowance As A Percentage Of Carrying Value 5.59% [3]   5.70% [3]      
Collectively Evaluated For Impairment [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 12,190   12,848      
Valuation Allowance As A Percentage Of Carrying Value 1.44% [1]   1.50% [1]      
Purchased Credit-Impaired Loans [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 1,836   2,493      
Valuation Allowance As A Percentage Of Carrying Value 7.84%   9.87%      
Home Loans [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 6,908 7,556 8,518 12,396 13,438 14,933
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality 23,404   25,265      
Financing Receivable, Collectively Evaluated for Impairment 275,711 [1],[2]   285,015 [1],[2]      
Financing Receivable, Individually Evaluated for Impairment 27,520 [2],[3]   31,458 [2],[3]      
Carrying Value 326,635 [1],[2]   341,738 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 2.11% [1]   2.49% [1]      
Home Loans [Member] | Impaired Loans and Troubled Debt Restructurings [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 1,069 [3],[4]   1,231 [3],[4]      
Valuation Allowance As A Percentage Of Carrying Value 3.88% [3]   3.91% [3]      
Home Loans [Member] | Collectively Evaluated For Impairment [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 4,003   4,794      
Valuation Allowance As A Percentage Of Carrying Value 1.45% [1]   1.68% [1]      
Home Loans [Member] | Purchased Credit-Impaired Loans [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 1,836   2,493      
Valuation Allowance As A Percentage Of Carrying Value 7.84%   9.87%      
Credit Card and Other Consumer [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 4,417 4,775 4,905 5,671 5,874 6,140
Financing Receivable, Collectively Evaluated for Impairment 184,143 [1],[2]   185,969 [1],[2]      
Financing Receivable, Individually Evaluated for Impairment 1,541 [2],[3]   2,079 [2],[3]      
Carrying Value 185,684 [1],[2]   188,048 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 2.38% [1]   2.61% [1]      
Credit Card and Other Consumer [Member] | Impaired Loans and Troubled Debt Restructurings [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 438 [3],[4]   579 [3],[4]      
Valuation Allowance As A Percentage Of Carrying Value 28.42% [3]   27.85% [3]      
Credit Card and Other Consumer [Member] | Collectively Evaluated For Impairment [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 3,979   4,326      
Valuation Allowance As A Percentage Of Carrying Value 2.16% [1]   2.33% [1]      
Commercial [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 4,486 4,287 4,005 3,168 3,129 3,106
Financing Receivable, Collectively Evaluated for Impairment 385,798 [1],[2]   385,357 [1],[2]      
Financing Receivable, Individually Evaluated for Impairment 2,881 [2],[3]   3,048 [2],[3]      
Carrying Value 388,679 [1],[2]   388,405 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 1.15% [1]   1.03% [1]      
Loans Receivable, Fair Value Disclosure 8,747 [5]   7,878 [6]      
Commercial [Member] | Impaired Loans and Troubled Debt Restructurings [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 278 [3],[4]   277 [3],[4]      
Valuation Allowance As A Percentage Of Carrying Value 9.65% [3]   9.09% [3]      
Commercial [Member] | Collectively Evaluated For Impairment [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 4,208   3,728      
Valuation Allowance As A Percentage Of Carrying Value 1.09% [1]   0.97% [1]      
Small Business Commercial Loan [Member] | UNITED STATES
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses $ 39   $ 36      
[1] Outstanding loan and lease balances and ratios do not include loans accounted for under the fair value option of $10.9 billion and $10.0 billion at June 30, 2014 and December 31, 2013.
[2] Amounts are presented gross of the allowance for loan and lease losses.
[3] Impaired loans include nonperforming commercial loans and all TDRs, including both commercial and consumer TDRs. Impaired loans exclude nonperforming consumer loans unless they are TDRs, and all consumer and commercial loans accounted for under the fair value option.
[4] Allowance for loan and lease losses includes $39 million and $36 million related to impaired U.S. small business commercial at June 30, 2014 and December 31, 2013.
[5] Consumer loans accounted for under the fair value option were residential mortgage loans of $2.0 billion and home equity loans of $170 million. Commercial loans accounted for under the fair value option were U.S. commercial loans of $1.3 billion and non-U.S. commercial loans of $7.4 billion. For additional information, see Note 14 – Fair Value Measurements and Note 15 – Fair Value Option
[6] Consumer loans accounted for under the fair value option were residential mortgage loans of $2.0 billion and home equity loans of $147 million. Commercial loans accounted for under the fair value option were U.S. commercial loans of $1.5 billion and non-U.S. commercial loans of $6.4 billion. For additional information, see Note 14 – Fair Value Measurements and Note 15 – Fair Value Option