The following tables summarize the applicable holding company and bank regulatory capital requirements: | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2020 (1) | | Minimum Requirement | | To Be Well
Capitalized | | | Amount | | Ratio | | | Basel III Regulatory Capital Rules | (Dollars in millions) | | Common equity Tier 1 capital: | | | | | | | | | Regions Financial Corporation | $ | 10,525 | | | 9.84 | % | | 4.50 | % | | N/A | | Regions Bank | 12,972 | | | 12.17 | | | 4.50 | | | 6.50 | % | | Tier 1 capital: | | | | | | | | | Regions Financial Corporation | $ | 12,181 | | | 11.39 | % | | 6.00 | % | | 6.00 | % | | Regions Bank | 12,972 | | | 12.17 | | | 6.00 | | | 8.00 | | | Total capital: | | | | | | | | | Regions Financial Corporation | $ | 14,498 | | | 13.56 | % | | 8.00 | % | | 10.00 | % | | Regions Bank | 14,803 | | | 13.89 | | | 8.00 | | | 10.00 | | | Leverage capital: | | | | | | | | | Regions Financial Corporation | $ | 12,181 | | | 8.71 | % | | 4.00 | % | | N/A | | Regions Bank | 12,972 | | | 9.30 | | | 4.00 | | | 5.00 | % |
| | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2019 | | Minimum Requirement | | To Be Well
Capitalized | | | Amount | | Ratio | | | Basel III Regulatory Capital Rules | (Dollars in millions) | | Common equity Tier 1 capital: | | | | | | | | | Regions Financial Corporation | $ | 10,228 | | | 9.68 | % | | 4.50 | % | | N/A | | Regions Bank | 12,212 | | | 11.58 | | | 4.50 | | | 6.50 | % | | Tier 1 capital: | | | | | | | | | Regions Financial Corporation | $ | 11,537 | | | 10.91 | % | | 6.00 | % | | 6.00 | % | | Regions Bank | 12,212 | | | 11.58 | | | 6.00 | | | 8.00 | | | Total capital: | | | | | | | | | Regions Financial Corporation | $ | 13,406 | | | 12.68 | % | | 8.00 | % | | 10.00 | % | | Regions Bank | 13,621 | | | 12.92 | | | 8.00 | | | 10.00 | | | Leverage capital: | | | | | | | | | Regions Financial Corporation | $ | 11,537 | | | 9.65 | % | | 4.00 | % | | N/A | | Regions Bank | 12,212 | | | 10.24 | | | 4.00 | | | 5.00 | % |
_________ (1)The 2020 Basel III CET1 capital, Tier 1 capital, Total capital, and Leverage capital ratios are estimated.
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