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]
|
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]
|
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]
|
Dec. 31, 2011
Unconsolidated VIEs [Member]
Subprime Loan [Member]
First Lien Mortgages [Member]
|
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]
|
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]
|
Dec. 31, 2011
Consolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
|
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]
|
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]
|
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]
|
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]
|
Dec. 31, 2010
Senior Securities [Member]
Unconsolidated VIEs [Member]
Commercial Mortgage Backed Securities [Member]
First Lien Mortgages [Member]
|
Dec. 31, 2011
Subordinate Securities [Member]
Unconsolidated VIEs [Member]
Agency Securities [Member]
First Lien Mortgages [Member]
|
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) | [4] | (10,693) | [4] | (94) | [4] | (147) | [4] | (3) | [4] | (126) | [4] | (343) | [4] | (645) | [4] | (21) | [4] | (146) | [4] | 0 | 0 | 0 | 0 | (30) | [4] | (12) | [4] | 0 | 0 | (3) | [4] | (8) | [4] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
AFS Debt Securities | 276,151 | 337,627 | 13 | [4],[5] | 35 | [4],[5] | 13 | [4],[5] | 35 | [4],[5] | 0 | 2,601 | 0 | [4],[5] | 0 | [4],[5] | (28,775) | [4] | (35,400) | [4] | (2,001) | [4] | (2,593) | [4] | (174) | [4] | (234) | [4] | (163) | [4] | 0 | (846) | [4] | (984) | [4] | 0 | 0 | (26) | [4] | (39) | [4] | (30) | [4] | (35) | [4] | 0 | (6) | [4] | 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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