Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Home Loans Impaired Loans (Details)

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Outstanding Loans and Leases - Home Loans Impaired Loans (Details) (USD $)
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended
Sep. 30, 2013
Home Loans [Member]
Sep. 30, 2012
Home Loans [Member]
Sep. 30, 2013
Home Loans [Member]
Sep. 30, 2012
Home Loans [Member]
Dec. 31, 2012
Home Loans [Member]
Sep. 30, 2013
Residential Mortgage [Member]
Sep. 30, 2012
Residential Mortgage [Member]
Sep. 30, 2013
Residential Mortgage [Member]
Sep. 30, 2012
Residential Mortgage [Member]
Dec. 31, 2012
Residential Mortgage [Member]
Sep. 30, 2013
Residential Mortgage [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2012
Residential Mortgage [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2013
Residential Mortgage [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2012
Residential Mortgage [Member]
Financing Receivable With Related Allowance [Member]
Dec. 31, 2012
Residential Mortgage [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2013
Residential Mortgage [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2012
Residential Mortgage [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2013
Residential Mortgage [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2012
Residential Mortgage [Member]
Financing Receivable Without Related Allowance [Member]
Dec. 31, 2012
Residential Mortgage [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2013
Home Equity [Member]
Sep. 30, 2012
Home Equity [Member]
Sep. 30, 2013
Home Equity [Member]
Sep. 30, 2012
Home Equity [Member]
Dec. 31, 2012
Home Equity [Member]
Sep. 30, 2013
Home Equity [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2012
Home Equity [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2013
Home Equity [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2012
Home Equity [Member]
Financing Receivable With Related Allowance [Member]
Dec. 31, 2012
Home Equity [Member]
Financing Receivable With Related Allowance [Member]
Sep. 30, 2013
Home Equity [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2012
Home Equity [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2013
Home Equity [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2012
Home Equity [Member]
Financing Receivable Without Related Allowance [Member]
Dec. 31, 2012
Home Equity [Member]
Financing Receivable Without Related Allowance [Member]
Sep. 30, 2013
Additional Troubled Debt Restructurings Recognized [Member]
Dec. 31, 2012
Additional Troubled Debt Restructurings Recognized [Member]
Dec. 31, 2011
Additional Troubled Debt Restructurings Recognized [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Home Loans [Member]
Sep. 30, 2012
Fully Insured Loans [Member]
Home Loans [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Home Loans [Member]
Sep. 30, 2012
Fully Insured Loans [Member]
Home Loans [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Residential Mortgage [Member]
Sep. 30, 2012
Fully Insured Loans [Member]
Residential Mortgage [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Residential Mortgage [Member]
Sep. 30, 2012
Fully Insured Loans [Member]
Residential Mortgage [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Home Equity [Member]
Sep. 30, 2012
Fully Insured Loans [Member]
Home Equity [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Home Equity [Member]
Sep. 30, 2012
Fully Insured Loans [Member]
Home Equity [Member]
Sep. 30, 2013
Fully Insured Loans [Member]
Financing Receivable, Impaired [Line Items]                                                                                                        
Troubled Debt Restructurings Carrying Value $ 3,094,000,000 [1] $ 6,939,000,000 [1] $ 9,578,000,000 [1] $ 8,964,000,000 [1]   $ 2,947,000,000 [1] $ 6,250,000,000 [1] $ 9,153,000,000 [1] $ 8,179,000,000 [1]                       $ 147,000,000 [1] $ 689,000,000 [1] $ 425,000,000 [1] $ 785,000,000 [1]                             $ 3,700,000,000 $ 351,000,000 [2] $ 3,465,000,000 [2] $ 1,265,000,000 [3] $ 3,465,000,000 [3] $ 280,000,000 [2] $ 2,877,000,000 [2] $ 1,033,000,000 [3] $ 2,877,000,000 [3] $ 71,000,000 [2] $ 588,000,000 [2] $ 232,000,000 [3] $ 588,000,000 [3] $ 1,800,000,000
Troubled Debt Restructurings, Non-performing With No Change in Repayment Terms At Time of Discharge                                                                             1,900,000,000                          
Troubled Debt Restructurings Carrying Value Loans Discharged, Percent                                                                       21.00% 33.00%                              
Toubled Debt Restructuring Carrying Value, Cumulative to Date Percentage                                                                           46.00%                            
Real Estate Acquired Through Foreclosure 546,000,000   546,000,000   650,000,000                                                                                              
Unpaid Principal Balance           36,321,000,000   36,321,000,000   34,449,000,000 13,793,000,000   13,793,000,000   14,223,000,000 22,528,000,000   22,528,000,000   20,226,000,000 4,071,000,000   4,071,000,000   3,880,000,000 1,069,000,000   1,069,000,000   1,256,000,000 3,002,000,000   3,002,000,000   2,624,000,000                                  
Carrying Value           30,392,000,000   30,392,000,000   28,125,000,000 13,227,000,000   13,227,000,000   13,158,000,000 17,165,000,000   17,165,000,000   14,967,000,000 2,214,000,000   2,214,000,000   2,125,000,000 886,000,000   886,000,000   1,022,000,000 1,328,000,000   1,328,000,000   1,103,000,000                                  
Related Allowance           1,141,000,000   1,141,000,000   1,252,000,000 1,141,000,000   1,141,000,000   1,252,000,000           343,000,000   343,000,000   448,000,000 343,000,000   343,000,000   448,000,000                                            
Average Carrying Value           31,011,000,000 23,041,000,000 30,784,000,000 21,095,000,000   14,027,000,000 11,435,000,000 14,221,000,000 11,361,000,000   16,984,000,000 11,606,000,000 16,563,000,000 9,734,000,000   2,188,000,000 1,914,000,000 2,150,000,000 1,789,000,000   902,000,000 1,095,000,000 942,000,000 1,186,000,000   1,286,000,000 819,000,000 1,208,000,000 603,000,000                                    
Interest Income Recognized           $ 325,000,000 [4] $ 185,000,000 [4] $ 887,000,000 [4] $ 544,000,000 [4]   $ 173,000,000 [4] $ 97,000,000 [4] $ 451,000,000 [4] $ 305,000,000 [4]   $ 152,000,000 [4] $ 88,000,000 [4] $ 436,000,000 [4] $ 239,000,000 [4]   $ 28,000,000 [4] $ 25,000,000 [4] $ 86,000,000 [4] $ 66,000,000 [4]   $ 9,000,000 [4] $ 12,000,000 [4] $ 31,000,000 [4] $ 34,000,000 [4]   $ 19,000,000 [4] $ 13,000,000 [4] $ 55,000,000 [4] $ 32,000,000 [4]                                    
[1] TDRs entered into during the three and nine months ended September 30, 2013 include residential mortgage modifications with principal forgiveness of $118 million and $462 million. TDRs entered into during the three and nine months ended September 30, 2012 include residential mortgage modifications with principal forgiveness of $294 million and $462 million
[2] Includes loans discharged in Chapter 7 bankruptcy with no change in repayment terms that are classified as TDRs in accordance with regulatory guidance implemented in the third quarter of 2012. The amount for the three months ended September 30, 2012 represents the cumulative impact upon adoption of the regulatory guidance. For the three months ended September 30, 2013, home loans of $196 million, or 56 percent of loans discharged in Chapter 7 bankruptcy, were current or less than 60 days past due.
[3] Includes loans discharged in Chapter 7 bankruptcy with no change in repayment terms that are classified as TDRs in accordance with regulatory guidance implemented in the third quarter of 2012. The amount for the nine months ended September 30, 2012 represents the cumulative impact upon adoption of the regulatory guidance. For the nine months ended September 30, 2013, home loans of $671 million, or 53 percent of loans discharged in Chapter 7 bankruptcy, were current or less than 60 days past due.
[4] Interest income recognized includes interest accrued and collected on the outstanding balances of accruing impaired loans as well as interest cash collections on nonaccruing impaired loans for which the principal is considered collectible.