Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation Plans - Additional Information (Details)

v3.22.0.1
Stock-based Compensation Plans - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 20, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation cost   $ 3,000 $ 2,100 $ 2,100
Tax benefit from compensation expense   723 505 511
Cash used to settle awards   72 81 84
Restricted Stock and Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized compensation cost   $ 2,300    
Expected period of total unrecognized compensation cost   4 years    
Total unrecognized compensation cost, period for recognition   2 years 4 months 24 days    
Fair value of vested in period   $ 2,300 $ 2,300 $ 2,600
Cash-settled Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cash-settled RSUs outstanding (in shares)   2,000,000    
Bank of America Corporation Equity Plan (Key Employee Equity Plan)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of additional shares authorized (in shares) 115,000,000      
Number of shares authorized (in shares)   715,000,000    
Bank of America Corporation Equity Plan (Key Employee Equity Plan) | Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units granted in period (in shares)   99,000,000 86,000,000  
Key Employee Equity Plan, Vesting In One-Third Increments | Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units granted in period (in shares)   18,000,000 57,000,000  
Number of vesting installments   3 years    
Key Employee Equity Plan, Vesting In One-Third Increments | Restricted Stock Units (RSUs) | Year 1        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   33.33%    
Key Employee Equity Plan, Vesting In One-Third Increments | Restricted Stock Units (RSUs) | Year 2        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   33.33%    
Key Employee Equity Plan, Vesting In One-Third Increments | Restricted Stock Units (RSUs) | Year 3        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   33.33%    
Key Employee Equity Plan, Vesting In One-Fourth Increments | Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units granted in period (in shares)   81,000,000 29,000,000  
Number of vesting installments   4 years    
Key Employee Equity Plan, Vesting In One-Fourth Increments | Restricted Stock Units (RSUs) | Share-based Payment Arrangement, Employee        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units granted in period (in shares)   27,000,000 25,000,000  
Key Employee Equity Plan, Vesting In One-Fourth Increments | Restricted Stock Units (RSUs) | Year 1        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   25.00%    
Key Employee Equity Plan, Vesting In One-Fourth Increments | Restricted Stock Units (RSUs) | Year 2        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   25.00%    
Key Employee Equity Plan, Vesting In One-Fourth Increments | Restricted Stock Units (RSUs) | Year 3        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   25.00%    
Key Employee Equity Plan, Vesting In One-Fourth Increments | Restricted Stock Units (RSUs) | Year 4        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   25.00%