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Regulatory Requirements and Restrictions (Tables)
 12 Months Ended
Dec. 31, 2022
Banking and Thrift, Interest [Abstract]  
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations The table below presents capital ratios and related information in accordance with Basel 3 Standardized and Advanced approaches as measured at December 31, 2022 and 2021 for the Corporation and BANA.
Regulatory Capital under Basel 3
Bank of America CorporationBank of America, N.A.
Standardized Approach (1)
Advanced Approaches (1)
Regulatory Minimum (2)
Standardized Approach (1)
Advanced Approaches (1)
Regulatory Minimum (3)
(Dollars in millions, except as noted)December 31, 2022
Risk-based capital metrics:  
Common equity tier 1 capital$180,060 $180,060 $181,089 $181,089 
Tier 1 capital208,446 208,446 181,089 181,089 
Total capital (4)
238,773 230,916 194,254 186,648 
Risk-weighted assets (in billions)1,605 1,411 1,386 1,087 
Common equity tier 1 capital ratio11.2 %12.8 %10.4 %13.1 %16.7 %7.0 %
Tier 1 capital ratio13.0 14.8 11.9 13.1 16.7 8.5 
Total capital ratio14.9 16.4 13.9 14.0 17.2 10.5 
Leverage-based metrics:
Adjusted quarterly average assets (in billions) (5)
$2,997 $2,997 $2,358 $2,358 
Tier 1 leverage ratio7.0 %7.0 %4.0 7.7 %7.7 %5.0 
Supplementary leverage exposure (in billions)$3,523 $2,785 
Supplementary leverage ratio5.9 %5.0 6.5 %6.0 
 December 31, 2021
Risk-based capital metrics:    
Common equity tier 1 capital$171,759 $171,759 $182,526 $182,526 
Tier 1 capital196,465 196,465 182,526 182,526 
Total capital (4)
227,592 220,616 194,773 188,091 
Risk-weighted assets (in billions)1,618 1,399 1,352 1,048 
Common equity tier 1 capital ratio10.6 %12.3 %9.5 %13.5 %17.4 %7.0 %
Tier 1 capital ratio12.1 14.0 11.0 13.5 17.4 8.5 
Total capital ratio14.1 15.8 13.0 14.4 17.9 10.5 
Leverage-based metrics:
Adjusted quarterly average assets (in billions) (5)
$3,087 $3,087 $2,414 $2,414 
Tier 1 leverage ratio6.4 %6.4 %4.0 7.6 %7.6 %5.0 
Supplementary leverage exposure (in billions)$3,604 $2,824 
Supplementary leverage ratio5.5 %5.0 6.5 %6.0 
(1)As of December 31, 2022 and 2021, capital ratios are calculated using the regulatory capital rule that allows a five-year transition period related to the adoption of the current expected credit losses accounting standard on January 1, 2020.
(2)The capital conservation buffer and global systemically important bank (G-SIB) surcharge were 2.5 percent at both December 31, 2022 and 2021. The Corporation’s stress capital buffer applied in place of the capital conservation buffer under the Standardized approach was 3.4 percent at December 31, 2022 and 2.5 percent at December 31, 2021. The countercyclical capital buffer for both periods was zero. The CET1 capital regulatory minimum is the sum of the CET1 capital ratio minimum of 4.5 percent, the Corporation’s G-SIB surcharge of 2.5 percent and the Corporation’s capital conservation buffer of 2.5 percent or the SCB, as applicable, of 3.4 percent at December 31, 2022 and 2.5 percent at December 31, 2021. The SLR regulatory minimum includes a leverage buffer of 2.0 percent.
(3)Risk-based capital regulatory minimums at December 31, 2022 and 2021 are the minimum ratios under Basel 3, including a capital conservation buffer of 2.5 percent. The regulatory minimums for the leverage ratios as of both period ends are the percent required to be considered well capitalized under the PCA framework.
(4)Total capital under the Advanced approaches differs from the Standardized approach due to differences in the amount permitted in Tier 2 capital related to the qualifying allowance for credit losses.
(5)Reflects total average assets adjusted for certain Tier 1 capital deductions.