Annual report pursuant to Section 13 and 15(d)

Regulatory Requirements and Restrictions (Details)

v3.6.0.2
Regulatory Requirements and Restrictions (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Leverage-based Capital Metrics [Abstract]    
Capital Required for Capital Adequacy to Risk Weighted Assets, Transition Capital Conservation Buffer 0.625%  
Capital Required for Capital Adequacy to Risk Weighted Assets, GSIB Surcharge 0.75%  
Capital Required for Capital Adequacy to Risk Weighted Assets, Countercyclical Capital Buffer 0.00%  
Bank of America Corporation    
Risk-based capital metrics:    
Common equity tier 1 capital ratio, regulatory minimum 5.875% 4.50%
Tier 1 capital ratio, regulatory minimum 7.375% 6.00%
Total capital ratio, regulatory minimum 9.375% 8.00%
Leverage-based Capital Metrics [Abstract]    
Tier 1 leverage ratio, regulatory minimum 4.00% 4.00%
Bank of America, N.A.    
Risk-based capital metrics:    
Common equity tier 1 capital ratio, regulatory minimum 6.50% 6.50%
Tier 1 capital ratio, regulatory minimum 8.00% 8.00%
Total capital ratio, regulatory minimum 10.00% 10.00%
Leverage-based Capital Metrics [Abstract]    
Tier 1 leverage ratio, regulatory minimum 5.00% 5.00%
Standardized Approach | Bank of America Corporation    
Risk-based capital metrics:    
Common equity tier 1 capital $ 168,866 $ 163,026
Tier 1 capital 190,315 180,778
Total capital 228,187 220,676
Risk-weighted assets (in billions) $ 1,399,000 $ 1,403,000
Common equity tier 1 capital ratio 12.10% 11.60%
Tier 1 capital ratio 13.60% 12.90%
Total capital ratio 16.30% 15.70%
Leverage-based Capital Metrics [Abstract]    
Adjusted quarterly average assets (in billions) $ 2,131,000 $ 2,103,000
Tier 1 leverage ratio 8.90% 8.60%
Standardized Approach | Bank of America, N.A.    
Risk-based capital metrics:    
Common equity tier 1 capital $ 149,755 $ 144,869
Tier 1 capital 149,755 144,869
Total capital 163,471 159,871
Risk-weighted assets (in billions) $ 1,176,000 $ 1,183,000
Common equity tier 1 capital ratio 12.70% 12.20%
Tier 1 capital ratio 12.70% 12.20%
Total capital ratio 13.90% 13.50%
Leverage-based Capital Metrics [Abstract]    
Adjusted quarterly average assets (in billions) $ 1,611,000 $ 1,575,000
Tier 1 leverage ratio 9.30% 9.20%
Advanced Approaches | Bank of America Corporation    
Risk-based capital metrics:    
Common equity tier 1 capital $ 168,866 $ 163,026
Tier 1 capital 190,315 180,778
Total capital 218,981 210,912
Risk-weighted assets (in billions) $ 1,530,000 $ 1,602,000
Common equity tier 1 capital ratio 11.00% 10.20%
Tier 1 capital ratio 12.40% 11.30%
Total capital ratio 14.30% 13.20%
Leverage-based Capital Metrics [Abstract]    
Adjusted quarterly average assets (in billions) $ 2,131,000 $ 2,103,000
Tier 1 leverage ratio 8.90% 8.60%
Advanced Approaches | Bank of America, N.A.    
Risk-based capital metrics:    
Common equity tier 1 capital $ 149,755 $ 144,869
Tier 1 capital 149,755 144,869
Total capital 154,697 150,624
Risk-weighted assets (in billions) $ 1,045,000 $ 1,104,000
Common equity tier 1 capital ratio 14.30% 13.10%
Tier 1 capital ratio 14.30% 13.10%
Total capital ratio 14.80% 13.60%
Leverage-based Capital Metrics [Abstract]    
Adjusted quarterly average assets (in billions) $ 1,611,000 $ 1,575,000
Tier 1 leverage ratio 9.30% 9.20%