Annual report pursuant to Section 13 and 15(d)

Regulatory Requirements and Restrictions - Other Regulatory Matters (Details)

v3.8.0.1
Regulatory Requirements and Restrictions - Other Regulatory Matters (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
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 $ 8,900 $ 7,700
Cash segregated under other regulations 4,100 4,800
Securities segregated under other regulations 17,300 14,600
Deposits with clearing organizations 11,900 $ 10,200
Bank of America, N.A.    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Cash dividends paid to parent company by consolidated subsidiaries $ 22,200  
Preceding period of net profits for dividends 2 years  
Cash dividends allowable to be declared and paid by parent company by consolidated subsidiaries $ 6,000  
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 275  
Cash dividends allowable to be declared and paid by parent company by consolidated subsidiaries $ 195