Quarterly report pursuant to Section 13 or 15(d)

Borrowings and Deposits - Related Party (Details)

v2.4.0.6
Borrowings and Deposits - Related Party (Details) (USD $)
3 Months Ended 3 Months Ended
Mar. 31, 2013
Mar. 31, 2013
Extendible One-Year Revolving Credit Facility
Revolving Credit Facility
Bank of America
Mar. 31, 2013
Revolving Unsecured Line of Credit Maturing February 2014
Revolving Credit Facility
Bank of America
Dec. 31, 2012
Revolving Unsecured Line of Credit Maturing February 2014
Revolving Credit Facility
Bank of America
Mar. 31, 2012
Senior And Subordinated Debt
Merrill Lynch Pierce Fenner & Smith Incorporated
Mar. 31, 2013
Revolving Unsecured Line of Credit Maturing November 2013
Merrill Lynch Pierce Fenner & Smith Incorporated
Revolving Credit Facility
Bank of America
Dec. 31, 2012
Revolving Unsecured Line of Credit Maturing November 2013
Merrill Lynch Pierce Fenner & Smith Incorporated
Revolving Credit Facility
Bank of America
Mar. 31, 2013
Revolving 364-day Unsecured Line of Credit Maturing August 2013
Merrill Lynch Pierce Fenner & Smith Incorporated
Revolving Credit Facility
Bank of America
Dec. 31, 2012
Revolving 364-day Unsecured Line of Credit Maturing August 2013
Merrill Lynch Pierce Fenner & Smith Incorporated
Revolving Credit Facility
Bank of America
Debt Instrument [Line Items]                  
Debt securities guaranteed by Bank of America $ 7,200,000,000                
Maximum borrowing capacity under line of credit   75,000,000,000 25,000,000,000     4,000,000,000   15,000,000,000  
Amount outstanding under line of credit     0 0   0 0 900,000,000 900,000,000
Early repayment of subordinated notes         1,200,000,000        
Gain on retirement of subordinated notes         $ 328,000,000        
Debt Instrument, Automatic Extension Period   1 year       1 year      
Debt Instrument, Cancellation Notice, Period   45 days       45 days