Fair Value Option - Changes in FV of Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified
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12 Months Ended |
Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
$ 9,595
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$ 9,069
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$ 1,658
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Trading Account Assets [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
73
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157
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|
259
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Corporate Loans [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
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84
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546
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Consumer and Commercial Loans [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(260)
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Loans held-for-sale [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
4,265
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9,584
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8,628
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Securities Financing Agreements [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
127
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|
52
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(292)
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Other Assets [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
196
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|
107
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202
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Long-term Deposits [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(77)
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(48)
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|
35
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Asset-backed Secured Financings [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(30)
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(95)
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(11)
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Unfunded loan commitments [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(429)
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23
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1,365
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Short-term Debt [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
261
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(192)
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(236)
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Long-term Debt [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
5,469
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[1] |
(603)
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[1] |
(8,838)
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[1] |
Trading Account Profits (Losses) [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
2,478
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(654)
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(3,722)
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Trading Account Profits (Losses) [Member] | Trading Account Assets [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
73
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|
157
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|
259
|
|
Trading Account Profits (Losses) [Member] | Corporate Loans [Member]
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
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2
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25
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Trading Account Profits (Losses) [Member] | Consumer and Commercial Loans [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
15
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Trading Account Profits (Losses) [Member] | Loans held-for-sale [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(20)
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0
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(211)
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Trading Account Profits (Losses) [Member] | Other Assets [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
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379
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Trading Account Profits (Losses) [Member] | Asset-backed Secured Financings [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
0
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0
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0
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Trading Account Profits (Losses) [Member] | Short-term Debt [Member]
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
261
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(192)
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(236)
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Trading Account Profits (Losses) [Member] | Long-term Debt [Member]
|
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|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
2,149
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[1] |
(621)
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[1] |
(3,938)
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[1] |
Mortgage Banking Income (Loss) [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
4,107
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8,996
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8,240
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Mortgage Banking Income (Loss) [Member] | Loans held-for-sale [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
4,137
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|
9,091
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8,251
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Mortgage Banking Income (Loss) [Member] | Asset-backed Secured Financings [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
|
|
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(30)
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|
(95)
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(11)
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|
Other Income [Member]
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
3,010
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|
727
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(2,860)
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[2] |
Other Income [Member] | Corporate Loans [Member]
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
|
|
82
|
|
521
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[2] |
Other Income [Member] | Consumer and Commercial Loans [Member]
|
|
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(275)
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|
|
|
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Other Income [Member] | Loans held-for-sale [Member]
|
|
|
|
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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|
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
148
|
|
493
|
|
588
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[2] |
Other Income [Member] | Securities Financing Agreements [Member]
|
|
|
|
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
|
|
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
127
|
|
52
|
|
(292)
|
[2] |
Other Income [Member] | Other Assets [Member]
|
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|
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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|
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
196
|
|
107
|
|
|
|
Other Income [Member] | Long-term Deposits [Member]
|
|
|
|
|
|
|
Fair Value, Option, Quantitative Disclosures [Line Items] |
|
|
|
|
|
|
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(77)
|
|
(48)
|
|
35
|
[2] |
Other Income [Member] | Asset-backed Secured Financings [Member]
|
|
|
|
|
|
|
Fair Value, Option, Quantitative Disclosures [Line Items] |
|
|
|
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
0
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|
0
|
|
0
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|
Other Income [Member] | Unfunded loan commitments [Member]
|
|
|
|
|
|
|
Fair Value, Option, Quantitative Disclosures [Line Items] |
|
|
|
|
|
|
Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
(429)
|
|
23
|
|
1,365
|
[2] |
Other Income [Member] | Short-term Debt [Member]
|
|
|
|
|
|
|
Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
0
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|
0
|
|
0
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Other Income [Member] | Long-term Debt [Member]
|
|
|
|
|
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
3,320
|
[1] |
18
|
[1] |
(4,900)
|
[1],[2] |
Equity Securities [Member] | Other Income [Member] | Other Assets [Member]
|
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Fair Value, Option, Quantitative Disclosures [Line Items] |
|
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Gains (Losses) Relating to Assets and Liabilities Accounted for Using Fair Value Option |
|
|
|
|
$ (177)
|
[2] |
|
|