Investment Securities (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | ||||||||
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Mar. 31, 2013
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Mar. 31, 2012
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Dec. 31, 2012
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Investment Securities [Abstract] | |||||||||
Available-for-sale, amortized cost | $ 615 | [1] | $ 656 | ||||||
Available-for-sale, fair value | 615 | [1] | 656 | ||||||
Other Debt Securities Carried at Fair Value | 7,512 | [2] | 7,722 | [2] | |||||
Equity investments | 2,080 | 2,627 | |||||||
Other investments | 2,880 | 2,620 | |||||||
Total | 13,087 | 13,625 | |||||||
Other than Temporary Impairment Losses, Investments [Abstract] | |||||||||
OTTI losses related to non-agency mortgage-backed AFS securities | 0 | 2 | |||||||
OTTI losses for AFS debt securities that Merrill Lynch does not intend to hold to recovery | 0 | 2 | |||||||
Corporate Asset Backed and Non-agency Mortgage Backed Securities [Member]
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Investment Securities [Abstract] | |||||||||
Available-for-sale, amortized cost | 212 | 266 | |||||||
Available-for-sale, fair value | 212 | 266 | |||||||
Corporate ABS
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Investment Securities [Abstract] | |||||||||
Available-for-sale, amortized cost | 175 | 226 | |||||||
Available-for-sale, fair value | 175 | 226 | |||||||
Non-agency mortgage backed securities
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Investment Securities [Abstract] | |||||||||
Available-for-sale, amortized cost | 37 | 40 | |||||||
Available-for-sale, fair value | 37 | 40 | |||||||
Other than Temporary Impairment Losses, Investments [Abstract] | |||||||||
OTTI losses related to non-agency mortgage-backed AFS securities | 0 | 2 | |||||||
U.S. Government and agencies
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Investment Securities [Abstract] | |||||||||
Available-for-sale, amortized cost | 403 | 390 | |||||||
Available-for-sale, fair value | $ 403 | $ 390 | |||||||
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- Definition
Total debt and equity financial instruments including securities held-to-maturity, securities-available for-sale and other non-qualifying investment securities. No definition available.
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- Details
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- Definition
Other Debt Securities Carried at Fair Value No definition available.
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- Definition
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the aggregate cost of investments accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Includes other investments and securities that are not at fair value as of the balance sheet date and those that are not accounted for under the equity method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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