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Collateralized Transactions (Narrative) (Details) (USD $)
In Billions, unless otherwise specified |
Dec. 31, 2012
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Dec. 31, 2011
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|---|---|---|
| Customer margin loans outstanding | $ 24.0 | $ 16.2 |
| Fair value of financial instruments received as collateral where the Company is permitted to sell or repledge the securities | 560 | 488 |
| Fair value of financial instruments received as collateral where the Company has sold or repledged | $ 397 | $ 335 |
| Financial instruments, percentage of total assets | 12.00% | |
| Securities collateral, percentage of total assets | 24.00% |
| X | ||||||||||
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- Definition
Financial Instruments Owned, Percentage Of Assets No definition available.
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| X | ||||||||||
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- Definition
Securities Collateral, Percentage Of Total Assets No definition available.
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| X | ||||||||||
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- Definition
Fair value as of the balance sheet date of customer securities accepted as collateral by the entity that it has sold or re-pledged to counterparties as collateral. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the fair values, as of the date of each statement of financial position presented, of assets which are owned but transferred to serve as collateral for the payment of debt obligations, primarily secured borrowings, repurchase agreements or other current or potential obligations, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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