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Variable Interest Entities - Summary Of VIE Consolidated By FHN (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Assets |  |
Other assets | $ 3,598 | $ 3,542
Liabilities: |  |
Other liabilities | 2,085 | 1,563
Rabbi Trusts used for Deferred Compensation Plans |  |
Assets |  |
Other assets | 183 | 205
Liabilities: |  |
Other liabilities | $ 157 | $ 179

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