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Regulatory Capital and Restrictions (Tables) | 12 Months Ended
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Dec. 31, 2019
Brokers and Dealers [Abstract] |
Summary Of Actual Capital Amounts And Ratios | The actual capital amounts and ratios of FHN and First Horizon Bank are presented in the table below.
(Dollars in thousands) |  | First Horizon National Corporation |  | First Horizon Bank
Amount |  | Ratio |  | Amount |  | Ratio
On December 31, 2019 |  |  |  |  |  |  |  |
Actual: |  |  |  |  |  |  |  |
Total Capital |  | $ | 4,154,885 |  |  | 11.22 | % |  | $ | 3,944,613 |  |  | 10.77 | %
Tier 1 Capital |  | 3,760,450 |  |  | 10.15 |  |  | 3,728,683 |  |  | 10.18 |
Common Equity Tier 1 |  | 3,408,936 |  |  | 9.20 |  |  | 3,433,867 |  |  | 9.38 |
Leverage |  | 3,760,450 |  |  | 9.04 |  |  | 3,728,683 |  |  | 9.12 |
Minimum Requirement for Capital Adequacy Purposes: |  |  |  |  |  |  |  |
Total Capital |  | 2,963,663 |  |  | 8.00 |  |  | 2,930,159 |  |  | 8.00 |
Tier 1 Capital |  | 2,222,747 |  |  | 6.00 |  |  | 2,197,620 |  |  | 6.00 |
Common Equity Tier 1 |  | 1,667,060 |  |  | 4.50 |  |  | 1,648,215 |  |  | 4.50 |
Leverage |  | 1,663,338 |  |  | 4.00 |  |  | 1,634,695 |  |  | 4.00 |
Minimum Requirement to be Well Capitalized Under Prompt Corrective Action Provisions: |  |  |  |  |  |  |  |
Total Capital |  |  |  |  |  | 3,662,699 |  |  | 10.00 |
Tier 1 Capital |  |  |  |  |  | 2,930,159 |  |  | 8.00 |
Common Equity Tier 1 |  |  |  |  |  | 2,380,755 |  |  | 6.50 |
Leverage |  |  |  |  |  | 2,043,368 |  |  | 5.00 |
On December 31, 2018 |  |  |  |  |  |  |  |
Actual: |  |  |  |  |  |  |  |
Total Capital |  | $ | 3,940,117 |  |  | 11.94 | % |  | $ | 3,689,180 |  |  | 11.32 | %
Tier 1 Capital |  | 3,565,373 |  |  | 10.80 |  |  | 3,492,541 |  |  | 10.72 |
Common Equity Tier 1 |  | 3,223,702 |  |  | 9.77 |  |  | 3,197,725 |  |  | 9.81 |
Leverage |  | 3,565,373 |  |  | 9.09 |  |  | 3,492,541 |  |  | 9.10 |
Minimum Requirement for Capital Adequacy Purposes: |  |  |  |  |  |  |  |
Total Capital |  | 2,640,208 |  |  | 8.00 |  |  | 2,607,406 |  |  | 8.00 |
Tier 1 Capital |  | 1,980,156 |  |  | 6.00 |  |  | 1,955,555 |  |  | 6.00 |
Common Equity Tier 1 |  | 1,485,117 |  |  | 4.50 |  |  | 1,466,666 |  |  | 4.50 |
Leverage |  | 1,568,870 |  |  | 4.00 |  |  | 1,535,279 |  |  | 4.00 |
Minimum Requirement to be Well Capitalized Under Prompt Corrective Action Provisions: |  |  |  |  |  |  |  |
Total Capital |  |  |  |  |  | 3,259,258 |  |  | 10.00 |
Tier 1 Capital |  |  |  |  |  | 2,607,406 |  |  | 8.00 |
Common Equity Tier 1 |  |  |  |  |  | 2,118,518 |  |  | 6.50 |
Leverage |  |  |  |  |  | 1,919,099 |  |  | 5.00 |

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1G -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958577-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 + Details
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