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Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings - Narrative (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | ||
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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| Federal Funds Sold or Purchased, Securities Financing Agreements and Short-Term Borrowings [Line Items] | |||
| Average liability amount during year | $ 244,134us-gaap_ShorttermDebtAverageOutstandingAmount | $ 252,972us-gaap_ShorttermDebtAverageOutstandingAmount | |
| Average liability rate during year (percent) | 1.01%bac_ShorttermDebtAverageOutstandingRate | 0.97%bac_ShorttermDebtAverageOutstandingRate | |
| Short-term Investments [Abstract] | |||
| Federal funds sold and securities borrowed or purchased under agreements to resell (includes $60,451 and $62,182 measured at fair value) | 206,708us-gaap_FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell | 191,823us-gaap_FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell | |
| Short-term Debt [Abstract] | |||
| Federal funds purchased and securities loaned or sold under agreements to repurchase (includes $27,129 and $35,357 measured at fair value) | 203,758us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase | 201,277us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase | |
| Short-term borrowings | 33,270us-gaap_OtherShortTermBorrowings | 31,172us-gaap_OtherShortTermBorrowings | |
| Total | 237,028us-gaap_ShortTermBorrowings | 232,449us-gaap_ShortTermBorrowings | |
| Weighted average interest rate | 1.12%us-gaap_ShortTermDebtWeightedAverageInterestRate | 1.04%us-gaap_ShortTermDebtWeightedAverageInterestRate | |
| Federal funds purchased and securities loaned or sold under agreements to repurchase | |||
| Federal Funds Sold or Purchased, Securities Financing Agreements and Short-Term Borrowings [Line Items] | |||
| Average liability amount during year |
214,722us-gaap_ShorttermDebtAverageOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
204,804us-gaap_ShorttermDebtAverageOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
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| Average liability rate during year (percent) |
0.94%bac_ShorttermDebtAverageOutstandingRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
1.03%bac_ShorttermDebtAverageOutstandingRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
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| Maximum month-end liability balance during year |
219,212us-gaap_ShorttermDebtMaximumMonthendOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
216,884us-gaap_ShorttermDebtMaximumMonthendOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
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| Short-term Debt [Abstract] | |||
| Weighted average interest rate |
1.02%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
0.98%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseMember |
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| Short-term borrowings | |||
| Federal Funds Sold or Purchased, Securities Financing Agreements and Short-Term Borrowings [Line Items] | |||
| Average liability amount during year |
29,412us-gaap_ShorttermDebtAverageOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
48,168us-gaap_ShorttermDebtAverageOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
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| Average liability rate during year (percent) |
1.47%bac_ShorttermDebtAverageOutstandingRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
0.75%bac_ShorttermDebtAverageOutstandingRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
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| Maximum month-end liability balance during year |
33,270us-gaap_ShorttermDebtMaximumMonthendOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
51,409us-gaap_ShorttermDebtMaximumMonthendOutstandingAmount / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
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| Short-term Debt [Abstract] | |||
| Weighted average interest rate |
2.00%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
1.47%us-gaap_ShortTermDebtWeightedAverageInterestRate / us-gaap_ShortTermDebtTypeAxis = us-gaap_ShortTermDebtMember |
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| Federal funds sold and securities borrowed or purchased under agreements to resell | |||
| Federal Funds Sold or Purchased, Securities Financing Agreements and Short-Term Borrowings [Line Items] | |||
| Average asset outstanding amount |
213,931bac_ShorttermInvestmentsAverageOutstandingAmount / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
212,504bac_ShorttermInvestmentsAverageOutstandingAmount / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
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| Average asset outstanding rate (percent) |
0.44%bac_ShorttermInvestmentsAverageOutstandingRate / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
0.51%bac_ShorttermInvestmentsAverageOutstandingRate / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
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| Maximum month-end asset outstanding amount |
$ 226,502bac_ShorttermInvestmentsMaximumMonthendOutstandingAmount / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
$ 219,181bac_ShorttermInvestmentsMaximumMonthendOutstandingAmount / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
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| Short-term Investments [Abstract] | |||
| Weighted average interest rate |
0.42%bac_ShorttermInvestmentsWeightedAverageInterestRate / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
0.47%bac_ShorttermInvestmentsWeightedAverageInterestRate / us-gaap_InvestmentTypeAxis = us-gaap_FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellMember |
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- Definition
This represents the yearly average interest rate applicable to short-term borrowings. No definition available.
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Short-term Investments, Average Outstanding Amount No definition available.
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Short-term Investments, Average Outstanding Rate No definition available.
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Short-term Investments, Maximum Month-end Outstanding Amount No definition available.
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Short-term Investments, Weighted Average Interest Rate No definition available.
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- Definition
Amount after offset of short term borrowing where a bank borrows, at the federal funds rate, from another bank and securities that an entity sells and agrees to repurchase at a specified date for a specified price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Includes: (1) the amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements (Federal Funds Sold) and (2) the dollar amount outstanding of funds lent in the form of security resale agreements regardless of maturity, if the agreement requires the bank to resell the identical security purchased or a security that meets the definition of substantially the same in the case of a dollar roll. Also include purchases of participations in pools of securities, regardless of maturity (Securities Purchased Under Agreements to Re-sell). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period. No definition available.
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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, maximum month-end borrowings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Weighted average interest rate of short-term debt outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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