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Regulatory Requirements (Narrative) (Details) (USD $)
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Jun. 30, 2012
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Dec. 31, 2011
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| Tier 1 capital to RWAs, being well-capitalized for regulatory purposes | 6.00% | |
| Total capital to RWAs, being well-capitalized for regulatory purposes | 10.00% | |
| Tier 1 leverage ratio, being well-capitalized for regulatory purposes | 5.00% | |
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MS&Co. [Member]
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| Net capital | $ 6,943,000,000 | $ 8,249,000,000 |
| Amount of capital that exceeds the minimum required | 5,682,000,000 | 7,215,000,000 |
| Net capital, minimum amount required to hold | 1,000,000,000 | |
| Net capital, minimum amount required to hold in accordance with the market and credit risk standards | 500,000,000 | |
| Amount by which if net capital falls below, the company is required to notify the SEC | $ 5,000,000,000 |
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- Definition
Notification Requirements for Net Capital No definition available.
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- Definition
Total net capital requirement computed under the alternative method allowed under regulatory reporting requirements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount by which the company's Total Capital exceeds the minimum required for capital adequacy purposes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net capital is equal to the net worth of the broker dealer, less certain items such as exchange memberships, carrying value of securities not readily marketable, haircuts on marketable securities in proprietary accounts, furniture and equipment and other illiquid assets as defined. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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