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
Sep. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Dec. 31, 2011
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses $ 19,432 $ 21,235 $ 24,179 $ 26,233 $ 30,288 $ 33,783
Carrying Value Gross of Valuation Allowance 924,196 [1],[2]   898,817 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 2.10% [2]   2.69% [2]      
Loans Receivable, Fair Value Disclosure 10,196   9,002      
Impaired Loans and Troubled Debt Restructurings [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 2,415 [3],[4]   3,314 [3],[4]      
Carrying Value Gross of Valuation Allowance 38,378 [1],[4]   39,077 [1],[4]      
Valuation Allowance As A Percentage Of Carrying Value 6.29% [4]   8.48% [4]      
Collectively Evaluated For Impairment [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 13,783   15,329      
Carrying Value Gross of Valuation Allowance 858,650 [1],[2]   833,622 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 1.61% [2]   1.84% [2]      
Purchased Credit-Impaired Loans [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 3,234   5,536      
Carrying Value Gross of Valuation Allowance 27,168   26,118      
Valuation Allowance As A Percentage Of Carrying Value 11.90%   21.20%      
Home Loans [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 10,513 12,396 14,933 16,534 19,964 21,079
Carrying Value Gross of Valuation Allowance 350,149 [1],[2]   361,069 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 3.00% [2]   4.14% [2]      
Home Loans [Member] | Impaired Loans and Troubled Debt Restructurings [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 1,484 [3],[4]   1,700 [3],[4]      
Carrying Value Gross of Valuation Allowance 32,606 [1],[4]   30,250 [1],[4]      
Valuation Allowance As A Percentage Of Carrying Value 4.55% [4]   5.62% [4]      
Home Loans [Member] | Collectively Evaluated For Impairment [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 5,795   7,697      
Carrying Value Gross of Valuation Allowance 290,375 [1],[2]   304,701 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 2.00% [2]   2.53% [2]      
Home Loans [Member] | Purchased Credit-Impaired Loans [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 3,234   5,536      
Carrying Value Gross of Valuation Allowance 27,168   26,118      
Valuation Allowance As A Percentage Of Carrying Value 11.90%   21.20%      
Credit Card and Other Consumer [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 5,430 5,671 6,140 6,521 7,024 8,569
Carrying Value Gross of Valuation Allowance 187,311 [1],[2]   191,365 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 2.90% [2]   3.21% [2]      
Financing Receivable, Modifications, Recorded Investment 2,416   3,946      
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 645 [3],[4]   1,139 [3],[4]      
Carrying Value Gross of Valuation Allowance 2,416 [1],[4]   3,946 [1],[4]      
Valuation Allowance As A Percentage Of Carrying Value 26.70% [4]   28.86% [4]      
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 4,785   5,001      
Carrying Value Gross of Valuation Allowance 184,895 [1],[2]   187,419 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 2.59% [2]   2.67% [2]      
Commercial [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 3,489 3,168 3,106 3,178 3,300 4,135
Carrying Value Gross of Valuation Allowance 386,736 [1],[2]   346,383 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 0.90% [2]   0.90% [2]      
Loans Receivable, Fair Value Disclosure 8,010 [5]   7,997 [6]      
Commercial [Member] | Impaired Loans and Troubled Debt Restructurings [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 286 [3],[4]   475 [3],[4]      
Carrying Value Gross of Valuation Allowance 3,356 [1],[4]   4,881 [1],[4]      
Valuation Allowance As A Percentage Of Carrying Value 8.52% [4]   9.73% [4]      
Commercial [Member] | Collectively Evaluated For Impairment [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Allowance for Loan and Lease Losses 3,203   2,631      
Carrying Value Gross of Valuation Allowance 383,380 [1],[2]   341,502 [1],[2]      
Valuation Allowance As A Percentage Of Carrying Value 0.84% [2]   0.77% [2]      
Small Business Commercial Loan [Member]
            
Carrying Value of Outstanding Loans and Leases [Abstract]            
Financing Receivable, Modifications, Recorded Investment $ 45   $ 97      
[1] Amounts are presented gross of the allowance for loan and lease losses.
[2] Outstanding loan and lease balances and ratios do not include loans accounted for under the fair value option of $10.2 billion and $9.0 billion at September 30, 2013 and December 31, 2012.
[3] Allowance for loan and lease losses includes $45 million and $97 million related to impaired U.S. small business commercial at September 30, 2013 and December 31, 2012.
[4] 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.
[5] Consumer loans accounted for under the fair value option were residential mortgage loans of $2.2 billion. Commercial loans accounted for under the fair value option were U.S. commercial loans of $1.8 billion and non-U.S. commercial loans of $6.2 billion. For additional information, see Note 16 – Fair Value Measurements and Note 17 – Fair Value Option.
[6] Consumer loans accounted for under the fair value option were residential mortgage loans of $1.0 billion. Commercial loans accounted for under the fair value option were U.S. commercial loans of $2.3 billion and non-U.S. commercial loans of $5.7 billion. For additional information, see Note 16 – Fair Value Measurements and Note 17 – Fair Value Option.