Securitizations and Other Variable Interest Entities - Home Equity Loans (Details) (USD $)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Dec. 31, 2008
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Dec. 31, 2011
Consolidated VIEs [Member]
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Dec. 31, 2010
Consolidated VIEs [Member]
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Dec. 31, 2011
Home Equity [Member]
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Dec. 31, 2010
Home Equity [Member]
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Dec. 31, 2011
Home Equity [Member]
Consolidated VIEs [Member]
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Dec. 31, 2010
Home Equity [Member]
Consolidated VIEs [Member]
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Dec. 31, 2011
Home Equity [Member]
Unconsolidated VIEs [Member]
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Dec. 31, 2010
Home Equity [Member]
Unconsolidated VIEs [Member]
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Dec. 31, 2011
Senior Debt Securities [Member]
Home Equity [Member]
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Dec. 31, 2010
Senior Debt Securities [Member]
Home Equity [Member]
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Dec. 31, 2011
Subordinated Debt Securities [Member]
Home Equity [Member]
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Dec. 31, 2010
Subordinated Debt Securities [Member]
Home Equity [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||||||||||||||||||
Collection reinvested in revolving period securitizations | $ 0 | $ 21,000,000 | |||||||||||||||||||||||||||||||||||
Maximum loss exposure | 10,235,000,000 | [1] | 12,324,000,000 | [1] | 2,672,000,000 | [1] | 3,192,000,000 | [1] | 7,563,000,000 | [1] | 9,132,000,000 | [1] | |||||||||||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||||||||||||||||||
Trading account assets | 5,000,000 | [2],[3] | 209,000,000 | [2],[3] | 0 | [2],[3] | 0 | [2],[3] | 5,000,000 | [2],[3] | 209,000,000 | [2],[3] | 3,000,000 | 204,000,000 | 2,000,000 | 5,000,000 | |||||||||||||||||||||
AFS Debt Securities | 276,151,000,000 | 337,627,000,000 | 0 | 2,601,000,000 | 13,000,000 | [3],[4] | 35,000,000 | [3],[4] | 0 | [3],[4] | 0 | [3],[4] | 13,000,000 | [3],[4] | 35,000,000 | [3],[4] | |||||||||||||||||||||
Loans and leases | 926,200,000,000 | 940,440,000,000 | 140,194,000,000 | 145,469,000,000 | 2,975,000,000 | 3,529,000,000 | 2,975,000,000 | 3,529,000,000 | 0 | 0 | 13,000,000 | 35,000,000 | |||||||||||||||||||||||||
Allowance for Loan and Lease Losses | (33,783,000,000) | (41,885,000,000) | (37,200,000,000) | (23,071,000,000) | [5] | (5,066,000,000) | (8,935,000,000) | (303,000,000) | (337,000,000) | (303,000,000) | (337,000,000) | 0 | 0 | ||||||||||||||||||||||||
Total assets | 2,129,046,000,000 | [6] | 2,264,909,000,000 | [6] | 151,761,000,000 | 169,828,000,000 | 2,690,000,000 | 3,436,000,000 | 2,672,000,000 | 3,192,000,000 | 18,000,000 | 244,000,000 | |||||||||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||||||||||||||||||
Long-term Debt | 372,265,000,000 | 448,431,000,000 | 49,054,000,000 | 71,013,000,000 | 3,081,000,000 | 3,635,000,000 | 3,081,000,000 | 3,635,000,000 | 0 | 0 | |||||||||||||||||||||||||||
Other Liabilities | 1,116,000,000 | 9,141,000,000 | 66,000,000 | 23,000,000 | 66,000,000 | 23,000,000 | 0 | 0 | |||||||||||||||||||||||||||||
Total liabilities | 1,898,945,000,000 | 2,036,661,000,000 | 55,947,000,000 | 86,896,000,000 | 3,147,000,000 | 3,658,000,000 | 3,147,000,000 | 3,658,000,000 | 0 | 0 | |||||||||||||||||||||||||||
Principal balance outstanding | 17,397,000,000 | 23,624,000,000 | 2,975,000,000 | 3,529,000,000 | 14,422,000,000 | 20,095,000,000 | |||||||||||||||||||||||||||||||
In Text Details [Abstract] | |||||||||||||||||||||||||||||||||||||
Trust certificates outstanding | 10,700,000,000 | 12,500,000,000 | |||||||||||||||||||||||||||||||||||
Remaining Borrowing Capacity On Home Equity Line | 460,000,000 | 639,000,000 | |||||||||||||||||||||||||||||||||||
Reserve For Losses For Home Equity Securitizations | 69,000,000 | 131,000,000 | |||||||||||||||||||||||||||||||||||
Servicing Fees, Net | $ 62,000,000 | $ 79,000,000 | |||||||||||||||||||||||||||||||||||
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