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Securities - Certain Corporate and Strategic Investments (Details) (USD $)
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12 Months Ended | |
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Dec. 31, 2013
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Dec. 31, 2014
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| Merchant Servicing Joint Venture | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Equity method investment ownership percentage |
49.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bac_MerchantServicingJointVentureMember |
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| Other assets | Merchant Servicing Joint Venture | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Equity method investments |
$ 3,200,000,000us-gaap_EquityMethodInvestments / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bac_MerchantServicingJointVentureMember |
3,100,000,000us-gaap_EquityMethodInvestments / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherAssetsMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bac_MerchantServicingJointVentureMember |
| Equity Investment Income | China Construction Bank Corporation | ||
| Schedule of Equity Method Investments [Line Items] | ||
| Realized gain (loss) on sale of equity method investment |
$ 753,000,000us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal / us-gaap_IncomeStatementLocationAxis = bac_PrincipalInvestmentGainsLossesMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bac_ChinaConstructionBankCorporationMember |
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- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of gain (loss) on sale or disposal of an equity method investment. No definition available.
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- Definition
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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