The following tables summarize the applicable holding company and bank regulatory capital requirements: | | | | | | | | | | | | | | | December 31, 2019 (1) | | Minimum Requirement | | To Be Well Capitalized | | Amount | | Ratio | | Transitional Basis Basel III Regulatory Capital Rules | (Dollars in millions) | Basel III 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 | % |
| | | | | | | | | | | | | | | December 31, 2018 | | Minimum Requirement | | To Be Well Capitalized | | Amount | | Ratio | | Transitional Basis Basel III Regulatory Capital Rules | (Dollars in millions) | Basel III common equity Tier 1 capital: | | | | | | | | Regions Financial Corporation | $ | 10,371 |
| | 9.90 | % | | 4.50 | % | | N/A |
| Regions Bank | 12,109 |
| | 11.59 |
| | 4.50 |
| | 6.50 | % | Tier 1 capital: | | | | | | | | Regions Financial Corporation | $ | 11,190 |
| | 10.68 | % | | 6.00 | % | | 6.00 | % | Regions Bank | 12,109 |
| | 11.59 |
| | 6.00 |
| | 8.00 |
| Total capital: | | | | | | | | Regions Financial Corporation | $ | 13,056 |
| | 12.46 | % | | 8.00 | % | | 10.00 | % | Regions Bank | 13,494 |
| | 12.92 |
| | 8.00 |
| | 10.00 |
| Leverage capital: | | | | | | | | Regions Financial Corporation | $ | 11,190 |
| | 9.32 | % | | 4.00 | % | | N/A |
| Regions Bank | 12,109 |
| | 10.12 |
| | 4.00 |
| | 5.00 | % |
_________ (1) The 2019 Basel III CET1 capital, Tier 1 capital, Total capital, and Leverage capital ratios are estimated.
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