Quarterly report pursuant to Section 13 or 15(d)

Allowance for Credit Losses - Allowance and Carrying Value by Portfolio Segment (Details)

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Allowance for Credit Losses - Allowance and Carrying Value by Portfolio Segment (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Jun. 30, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Impaired loans and troubled debt restructurings            
Allowance for loan and lease losses $ 1,489 [1],[2]   $ 2,087 [1],[2]      
Carrying value 30,019 [1],[3]   36,585 [1],[3]      
Allowance as a percentage of carrying value 4.96% [1]   5.70% [1]      
Loans collectively evaluated for impairment            
Allowance for loan and lease losses 12,027   12,848      
Carrying value 831,704 [3],[4]   856,341 [3],[4]      
Allowance as a percentage of carrying value 1.45% [4]   1.50% [4]      
Purchased credit-impaired loans            
Carrying value gross of valuation allowance 21,409 [5]   25,265 [5]      
Valuation allowance as a percentage of carrying value 7.43%   9.87%      
Total            
Allowance for loan and lease losses 15,106 15,811 17,428 19,432 21,235 24,179
Carrying value 883,132 [3],[4]   918,191 [3],[4]      
Allowance as a percentage of carrying value 1.71% [4]   1.90% [4]      
Loans and leases, measured at fair value 8,183   10,042      
Home Loans
            
Impaired loans and troubled debt restructurings            
Allowance for loan and lease losses 918 [1],[2]   1,231 [1],[2]      
Carrying value 26,190 [1],[3]   31,458 [1],[3]      
Allowance as a percentage of carrying value 3.51% [1]   3.91% [1]      
Loans collectively evaluated for impairment            
Allowance for loan and lease losses 3,968   4,794      
Carrying value 264,637 [3],[4]   285,015 [3],[4]      
Allowance as a percentage of carrying value 1.50% [4]   1.68% [4]      
Purchased credit-impaired loans            
Valuation allowance 1,590   2,493      
Carrying value gross of valuation allowance 21,409   25,265      
Valuation allowance as a percentage of carrying value 7.43%   9.87%      
Total            
Allowance for loan and lease losses 6,476 6,908 8,518 10,513 12,396 14,933
Carrying value 312,236 [3],[4]   341,738 [3],[4]      
Allowance as a percentage of carrying value 2.07% [4]   2.49% [4]      
Credit Card and Other Consumer
            
Impaired loans and troubled debt restructurings            
Allowance for loan and lease losses 383 [1],[2]   579 [1],[2]      
Carrying value 1,351 [1],[3]   2,079 [1],[3]      
Allowance as a percentage of carrying value 28.35% [1]   27.85% [1]      
Loans collectively evaluated for impairment            
Allowance for loan and lease losses 3,815   4,326      
Carrying value 184,378 [3],[4]   185,969 [3],[4]      
Allowance as a percentage of carrying value 2.07% [4]   2.33% [4]      
Purchased credit-impaired loans            
Carrying value gross of valuation allowance 21,409 [5]   25,265 [5]      
Total            
Allowance for loan and lease losses 4,198 4,417 4,905 5,430 5,671 6,140
Carrying value 185,729 [3],[4]   188,048 [3],[4]      
Allowance as a percentage of carrying value 2.26% [4]   2.61% [4]      
Loans and leases, measured at fair value 2,129 [6]   2,164 [6]      
Commercial
            
Impaired loans and troubled debt restructurings            
Allowance for loan and lease losses 188 [1],[2]   277 [1],[2]      
Carrying value 2,478 [1],[3]   3,048 [1],[3]      
Allowance as a percentage of carrying value 7.59% [1]   9.09% [1]      
Loans collectively evaluated for impairment            
Allowance for loan and lease losses 4,244   3,728      
Carrying value 382,689 [3],[4]   385,357 [3],[4]      
Allowance as a percentage of carrying value 1.11% [4]   0.97% [4]      
Total            
Allowance for loan and lease losses 4,432 4,486 4,005 3,489 3,168 3,106
Carrying value 385,167 [3],[4]   388,405 [3],[4]      
Allowance as a percentage of carrying value 1.15% [4]   1.03% [4]      
Loans and leases, measured at fair value 6,054 [6]   7,878 [7]      
Commercial | United States
            
Total            
Loans and leases, measured at fair value 1,300   1,500      
Small Business Commercial Loan | United States
            
Total            
Allowance for loan and lease losses $ 37   $ 36      
[1] 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.
[2] Allowance for loan and lease losses includes $37 million and $36 million related to impaired U.S. small business commercial at September 30, 2014 and December 31, 2013.
[3] Amounts are presented gross of the allowance for loan and lease losses.
[4] Outstanding loan and lease balances and ratios do not include loans accounted for under the fair value option of $8.2 billion and $10.0 billion at September 30, 2014 and December 31, 2013.
[5] PCI loan amounts are shown gross of the valuation allowance.
[6] Consumer loans accounted for under the fair value option were residential mortgage loans of $2.0 billion and home equity loans of $179 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 $4.8 billion. For additional information, see Note 14 – Fair Value Measurements and Note 15 – Fair Value Option
[7] 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