Trading Account Assets and Liabilities (Details) (USD $) In Millions |
Sep. 30, 2011 |
Dec. 31, 2010 |
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Components of trading account assets and liabilities | ||||||
Trading account assets | $ 176,398 | $ 194,671 | ||||
Trading account liabilities | 68,026 | 71,985 | ||||
U.S. government and agency securities [Member] |
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Components of trading account assets and liabilities | ||||||
Trading account assets | 51,725 | [1] | 60,811 | [1] | ||
Trading account liabilities | 21,373 | 29,340 | ||||
Corporate securities, trading loans and other [Member] |
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Components of trading account assets and liabilities | ||||||
Trading account assets | 45,482 | 49,352 | ||||
Non-U.S. sovereign debt [Member] |
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Components of trading account assets and liabilities | ||||||
Trading account assets | 43,112 | 33,523 | ||||
Trading account liabilities | 17,767 | 15,813 | ||||
Equity securities [Member] |
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Components of trading account assets and liabilities | ||||||
Trading account assets | 23,639 | 32,129 | ||||
Trading account liabilities | 18,614 | 15,482 | ||||
Mortgage trading loans and ABS [Member] |
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Components of trading account assets and liabilities | ||||||
Trading account assets | 12,440 | 18,856 | ||||
Corporate securities and other [Member] |
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Components of trading account assets and liabilities | ||||||
Trading account liabilities | 10,272 | 11,350 | ||||
Government sponsored enterprise obligations [Member] |
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Components of trading account assets and liabilities | ||||||
Trading account assets | $ 23,800 | $ 29,700 | ||||
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X | ||||||||||
- Definition Components of trading account assets and liabilities.
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X | ||||||||||
- Definition The carrying amount of liabilities as of the balance sheet date that pertain to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading. Examples include short positions in securities, derivatives and commodities, obligations under repurchase agreements, and securities borrowed arrangements.
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X | ||||||||||
- Definition The total of financial instruments that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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