Annual report pursuant to Section 13 and 15(d)

Regulatory Requirements and Restrictions - Other Regulatory Matters (Details)

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Regulatory Requirements and Restrictions - Other Regulatory Matters (Details) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Average daily reserve balance requirements, in excess of vault cash, maintained with the Federal Reserve $ 9,800,000,000 $ 9,100,000,000
Cash segregated under other regulations 12,100,000,000 7,700,000,000
Securities segregated under other regulations 17,500,000,000 $ 19,200,000,000
Bank of America, N.A.    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Cash dividends paid to parent company by consolidated subsidiaries $ 18,800,000,000  
Preceding period of net profits for dividends 2 years  
Cash dividends allowable to be declared and paid by parent company by consolidated subsidiaries $ 5,000,000,000  
Subsidiaries, Bank of America California, N.A.    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Cash dividends paid to parent company by consolidated subsidiaries 0  
Cash dividends allowable to be declared and paid by parent company by consolidated subsidiaries $ 895,000,000