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Cushing Connect Joint Venture - Schedule of Variable Interest Entities (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Holly Energy Partners Entity [Line Items)    
Cash and cash equivalents $ 874 $ 800
Properties, plants and equipment, at cost 11,140 10,931
Accumulated depreciation (4,622) (4,373)
Intangibles and other 923 962
Variable Interest Entity, Not Primary Beneficiary | Cushing Connect    
Holly Energy Partners Entity [Line Items)    
Cash and cash equivalents 2 5
Properties, plants and equipment, at cost 103 103
Accumulated depreciation (13) (12)
Intangibles and other $ 29 $ 30