Outstanding Loans and Leases - Home Loans Impaired Loans (Details) (USD $)
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12 Months Ended | |||||||||||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | $ 522,000,000 | [1] | $ 728,000,000 | [1] | $ 1,440,000,000 | [1] | ||||||||
Residential Portfolio Segment [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | 10,537,000,000 | [2] | 13,086,000,000 | [2] | 10,547,000,000 | [2] | ||||||||
Real Estate Acquired Through Foreclosure | 533,000,000 | 650,000,000 | ||||||||||||
Residential Mortgage [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | 10,016,000,000 | [2] | 12,228,000,000 | [2] | 9,991,000,000 | [2] | ||||||||
Unpaid Principal Balance | 34,908,000,000 | 34,449,000,000 | ||||||||||||
Carrying Value | 29,312,000,000 | 28,125,000,000 | ||||||||||||
Related Allowance | 991,000,000 | 1,252,000,000 | ||||||||||||
Average Carrying Value | 30,551,000,000 | 22,512,000,000 | 16,059,000,000 | |||||||||||
Interest Income Recognized | 1,237,000,000 | [3] | 789,000,000 | [3] | 566,000,000 | [3] | ||||||||
Home Equity Line of Credit [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | 521,000,000 | [2] | 858,000,000 | [2] | 556,000,000 | [2] | ||||||||
Unpaid Principal Balance | 4,142,000,000 | 3,880,000,000 | ||||||||||||
Carrying Value | 2,146,000,000 | 2,125,000,000 | ||||||||||||
Related Allowance | 240,000,000 | 448,000,000 | ||||||||||||
Average Carrying Value | 2,157,000,000 | 1,879,000,000 | 1,799,000,000 | |||||||||||
Interest Income Recognized | 117,000,000 | [3] | 93,000,000 | [3] | 57,000,000 | [3] | ||||||||
Loans Discharged in Chapter Seven Bankruptcy [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Nonperforming Troubled Debt Restructurings | 1,800,000,000 | |||||||||||||
Carrying Value | 3,600,000,000 | |||||||||||||
Loans Discharged in Chapter Seven Bankruptcy [Member] | Residential Portfolio Segment [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | 1,429,000,000 | [4] | 3,534,000,000 | [4] | ||||||||||
Loans Discharged in Chapter Seven Bankruptcy [Member] | Residential Mortgage [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | 1,151,000,000 | [4] | 2,936,000,000 | [4] | ||||||||||
Loans Discharged in Chapter Seven Bankruptcy [Member] | Home Equity Line of Credit [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | 278,000,000 | [4] | 598,000,000 | [4] | ||||||||||
Fully Insured Loans [Member] | Loans Discharged in Chapter Seven Bankruptcy [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Carrying Value | 1,800,000,000 | |||||||||||||
Discharged in the Current Year [Member] | Additional Troubled Debt Restructurings Recognized [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Toubled Debt Restructuring Carrying Value, Percentage | 27.00% | |||||||||||||
Discharged in the Prior Year [Member] | Additional Troubled Debt Restructurings Recognized [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Toubled Debt Restructuring Carrying Value, Percentage | 30.00% | |||||||||||||
Discharged Two or More Years Ago [Member] | Additional Troubled Debt Restructurings Recognized [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Toubled Debt Restructuring Carrying Value, Percentage | 43.00% | |||||||||||||
Financing Receivable With Related Allowance [Member] | Residential Mortgage [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Unpaid Principal Balance | 13,341,000,000 | 14,223,000,000 | ||||||||||||
Carrying Value | 12,862,000,000 | 13,158,000,000 | ||||||||||||
Related Allowance | 991,000,000 | 1,252,000,000 | ||||||||||||
Average Carrying Value | 13,926,000,000 | 11,575,000,000 | 9,552,000,000 | |||||||||||
Interest Income Recognized | 616,000,000 | [3] | 423,000,000 | [3] | 325,000,000 | [3] | ||||||||
Financing Receivable With Related Allowance [Member] | Home Equity Line of Credit [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Unpaid Principal Balance | 893,000,000 | 1,256,000,000 | ||||||||||||
Carrying Value | 761,000,000 | 1,022,000,000 | ||||||||||||
Related Allowance | 240,000,000 | 448,000,000 | ||||||||||||
Average Carrying Value | 912,000,000 | 1,145,000,000 | 1,357,000,000 | |||||||||||
Interest Income Recognized | 41,000,000 | [3] | 44,000,000 | [3] | 34,000,000 | [3] | ||||||||
Financing Receivable Without Related Allowance [Member] | Residential Mortgage [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Unpaid Principal Balance | 21,567,000,000 | 20,226,000,000 | ||||||||||||
Carrying Value | 16,450,000,000 | 14,967,000,000 | ||||||||||||
Related Allowance | 0 | 0 | ||||||||||||
Average Carrying Value | 16,625,000,000 | 10,937,000,000 | 6,507,000,000 | |||||||||||
Interest Income Recognized | 621,000,000 | [3] | 366,000,000 | [3] | 241,000,000 | [3] | ||||||||
Financing Receivable Without Related Allowance [Member] | Home Equity Line of Credit [Member]
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Financing Receivable, Impaired [Line Items] | ||||||||||||||
Unpaid Principal Balance | 3,249,000,000 | 2,624,000,000 | ||||||||||||
Carrying Value | 1,385,000,000 | 1,103,000,000 | ||||||||||||
Related Allowance | 0 | 0 | ||||||||||||
Average Carrying Value | 1,245,000,000 | 734,000,000 | 442,000,000 | |||||||||||
Interest Income Recognized | $ 76,000,000 | [3] | $ 49,000,000 | [3] | $ 23,000,000 | [3] | ||||||||
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