Securitizations and Other Variable Interest Entities - First Lien Mortgages VIE (Details) (USD $)
In Millions, unless otherwise specified |
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
Home Equity [Member]
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Dec. 31, 2010
Home Equity [Member]
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Dec. 31, 2011
Unconsolidated VIEs [Member]
Home Equity [Member]
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Dec. 31, 2010
Unconsolidated VIEs [Member]
Home Equity [Member]
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Dec. 31, 2011
Unconsolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Unconsolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2011
Unconsolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Unconsolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
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Dec. 31, 2011
Unconsolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Unconsolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Unconsolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Unconsolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
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Dec. 31, 2011
Unconsolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Unconsolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2011
Consolidated VIEs [Member]
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Apr. 14, 2011
Consolidated VIEs [Member]
Trust
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Dec. 31, 2010
Consolidated VIEs [Member]
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Dec. 31, 2011
Consolidated VIEs [Member]
Home Equity [Member]
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Dec. 31, 2010
Consolidated VIEs [Member]
Home Equity [Member]
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Dec. 31, 2011
Consolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Consolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Consolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Consolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Consolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Consolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Consolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Consolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Consolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Consolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2011
Senior Securities [Member]
Unconsolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Senior Securities [Member]
Unconsolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Senior Securities [Member]
Unconsolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Senior Securities [Member]
Unconsolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Senior Securities [Member]
Unconsolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Senior Securities [Member]
Unconsolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Senior Securities [Member]
Unconsolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Senior Securities [Member]
Unconsolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Senior Securities [Member]
Unconsolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Senior Securities [Member]
Unconsolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2011
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
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Dec. 31, 2010
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Prime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Alt-A Loan [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2010
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Maximum loss exposure | $ 10,235 | [1] | $ 12,324 | [1] | $ 7,563 | [1] | $ 9,132 | [1] | $ 37,519 | [2] | $ 46,093 | [2] | $ 2,375 | [2] | $ 2,794 | [2] | $ 289 | [2] | $ 416 | [2] | $ 506 | [2] | $ 651 | [2] | $ 981 | [2] | $ 1,199 | [2] | $ 2,672 | [1] | $ 3,192 | [1] | $ 50,648 | [2] | $ 32,746 | [2] | $ 450 | [2] | $ 46 | [2] | $ 419 | [2] | $ 42 | [2] | $ 0 | [2] | $ 0 | [2] | $ 0 | [2] | $ 0 | [2] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Trading account assets | 5 | [3],[4] | 209 | [3],[4] | 5 | [3],[4] | 209 | [3],[4] | 0 | [3],[4] | 0 | [3],[4] | 8,744 | [3] | 10,693 | [3] | 94 | [3] | 147 | [3] | 3 | [3] | 126 | [3] | 343 | [3] | 645 | [3] | 21 | [3] | 146 | [3] | 0 | 0 | 0 | 0 | 30 | [3] | 12 | [3] | 0 | 0 | 3 | [3] | 8 | [3] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
AFS Debt Securities | 276,151 | 337,627 | 13 | [3],[5] | 35 | [3],[5] | 13 | [3],[5] | 35 | [3],[5] | 0 | 2,601 | 0 | [3],[5] | 0 | [3],[5] | 28,775 | [3] | 35,400 | [3] | 2,001 | [3] | 2,593 | [3] | 174 | [3] | 234 | [3] | 163 | [3] | 0 | 846 | [3] | 984 | [3] | 0 | 0 | 26 | [3] | 39 | [3] | 30 | [3] | 35 | [3] | 0 | 6 | [3] | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Residual interests held | 0 | 0 | 8 | 6 | 9 | 9 | 0 | 0 | 43 | 61 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Other Assets | 145,686 | 182,124 | 0 | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 4,769 | 7,086 | 495 | 220 | 63 | 46 | 59 | 16 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Total assets | 2,129,046 | [6] | 2,264,909 | [6] | 2,690 | 3,436 | 18 | 244 | 37,519 | 46,093 | 2,129 | 2,794 | 246 | 416 | 506 | 651 | 913 | 1,199 | 151,761 | 169,828 | 2,672 | 3,192 | 50,648 | 32,746 | 1,361 | 46 | 1,573 | 748 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Principal balance outstanding | 17,397 | 23,624 | 14,422 | 20,095 | 1,198,766 | [7] | 1,297,159 | [7] | 61,207 | [7] | 75,762 | [7] | 73,949 | [7] | 92,710 | [7] | 101,622 | [7] | 116,233 | [7] | 76,645 | [7] | 73,597 | [7] | 2,975 | 3,529 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loans and leases | 926,200 | 940,440 | 2,975 | 3,529 | 0 | 0 | 140,194 | 145,469 | 2,975 | 3,529 | 50,159 | 32,563 | 1,298 | 0 | 892 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Allowance for Loan and Lease Losses | (33,783) | (41,885) | (37,200) | (23,071) | [8] | (303) | (337) | 0 | 0 | (5,066) | (8,935) | (303) | (337) | (6) | (37) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loans held-for-sale | 13,762 | 35,058 | 1,635 | 1,953 | 0 | 0 | 0 | 0 | 622 | 732 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Commercial paper and other short-term borrowings | 35,698 | 59,962 | 5,777 | 6,742 | 0 | 0 | 0 | 0 | 650 | 706 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Long-term Debt | 372,265 | 448,431 | 3,081 | 3,635 | 0 | 0 | 49,054 | 71,013 | 3,081 | 3,635 | 0 | 0 | 1,360 | 0 | 911 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Other Liabilities | 66 | 23 | 0 | 0 | 1,116 | 9,141 | 66 | 23 | 0 | 3 | 0 | 9 | 57 | 62 | 0 | 0 | 0 | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Liabilities | $ 1,898,945 | $ 2,036,661 | $ 3,147 | $ 3,658 | $ 0 | $ 0 | $ 55,947 | $ 86,896 | $ 3,147 | $ 3,658 | $ 0 | $ 3 | $ 1,360 | $ 9 | $ 1,618 | $ 768 | $ 0 | $ 0 | $ 0 | $ 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
In Text Details [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Number of Securities, Entity has a Loss Sharing Reinsurance Obligation | 12 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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