Annual report pursuant to Section 13 and 15(d)

Regulatory Requirements and Restrictions - Narrative (Details)

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Regulatory Requirements and Restrictions - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
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 $ 0 $ 3,800
Cash segregated under other regulations 4,000 4,900
Securities segregated under other regulations 10,600 16,800
Deposits with clearing organizations $ 28,600 $ 10,900
Bank of America, N.A.    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Preceding period of net profits for dividends 2 years  
Cash dividends allowable to be declared and paid by consolidated subsidiaries to the parent company $ 14,700  
Subsidiaries, Bank of America California, N.A.    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Cash dividends allowable to be declared and paid by consolidated subsidiaries to the parent company 234  
Bank of America, N.A.    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Proceeds from dividends received 15,600  
Subsidiaries, Bank of America California, N.A.    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Proceeds from dividends received $ 29