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VARIABLE INTEREST ENTITIES - Assets and Liabilities Related to VIE (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Property, plant and equipment, net | $ 23,595.1 | $ 22,136.5
Variable Interest Entities |  |
Assets: |  |
Property, plant and equipment, net | 133.6 | 140.7
Evergy Kansas Central |  |
Assets: |  |
Property, plant and equipment, net | 11,988.3 | 11,080.8
Evergy Kansas Central | Variable Interest Entities |  |
Assets: |  |
Property, plant and equipment, net | $ 133.6 | $ 140.7

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