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Variable Interest Entities - Summary of VIE Consolidated By FHN (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Assets: |  |
Other assets | $ 4,080 | $ 3,542
Liabilities: |  |
Other liabilities | 2,479 | 1,563
Rabbi Trusts Used For Deferred Compensation Plans |  |
Assets: |  |
Other assets | 181 | 205
Liabilities: |  |
Other liabilities | $ 150 | $ 179

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