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Variable Interest Entities - Summary Of VIE Consolidated By FHN (Details) - USD ($) $ in Millions | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Assets |  |
Other assets | $ 3,710 | $ 4,072
Liabilities: |  |
Other liabilities | 1,614 | 1,699
Rabbi Trusts used for Deferred Compensation Plans |  |
Assets |  |
Other assets | 200 | 195
Liabilities: |  |
Other liabilities | $ 170 | $ 165

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