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Condensed Consolidated Statements of Cash Flows (Parenthetical) (Bank of America, USD $)
In Billions, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Consumer Mortgage [Member]
Jun. 30, 2012
Capital Contribution [Member]
Other Significant Noncash Transactions [Line Items]    
Other Significant Noncash Transaction, Value of Consideration Received $ 4.3 $ 1.1