v3.26.1
Long-Term Obligations - Revolving Credit Facilities Schedule (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Apr. 09, 2026
Apr. 08, 2026
Dec. 31, 2025
Line of Credit Facility [Line Items]        
Outstanding Borrowings $ 3,248.1     $ 3,283.3
Outstanding Letters of Credit 170.0     250.0
Revolving Credit Facility | Letter of Credit        
Line of Credit Facility [Line Items]        
Total Capacity $ 625.0      
Revolving Credit Facility | Line of Credit | Minimum | Base Rate        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate (percentage) 0.00%      
Revolving Credit Facility | Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR) and Canadian Overnight Financing Rate (CDOR)        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate (percentage) 1.00%      
Revolving Credit Facility | Line of Credit | Maximum        
Line of Credit Facility [Line Items]        
Unused capacity, commitment fee percentage 0.25%      
Revolving Credit Facility | Line of Credit | Maximum | Base Rate        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate (percentage) 0.50%      
Revolving Credit Facility | Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR) and Canadian Overnight Financing Rate (CDOR)        
Line of Credit Facility [Line Items]        
Debt instrument, basis spread on variable rate (percentage) 1.50%      
Revolving Credit Facility | Line of Credit | Delek Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Total Capacity $ 1,250.0 $ 1,250.0 $ 1,100.0  
Outstanding Borrowings 0.0      
Outstanding Letters of Credit 453.3      
Available Capacity 796.7      
Revolving Credit Facility | Line of Credit | Delek Logistics Revolving Facility        
Line of Credit Facility [Line Items]        
Total Capacity 1,300.0      
Outstanding Borrowings 248.1     $ 211.8
Outstanding Letters of Credit 0.0      
Available Capacity $ 1,051.9      
Revolving Credit Facility | Line of Credit | Delek Logistics Revolving Facility | Minimum        
Line of Credit Facility [Line Items]        
Unused capacity, commitment fee percentage 0.30%      
Revolving Credit Facility | Line of Credit | Delek Logistics Revolving Facility | Maximum        
Line of Credit Facility [Line Items]        
Unused capacity, commitment fee percentage 0.50%      
Revolving Credit Facility | Line of Credit | DKL Revolver, Senior Secured Revolving Commitment        
Line of Credit Facility [Line Items]        
Weighted average interest rate (percentage) 6.05%     6.58%
Letter of Credit | Line of Credit | Delek Logistics Revolving Facility        
Line of Credit Facility [Line Items]        
Total Capacity $ 150.0      
US Swing Line Sublimit | Line of Credit | Delek Logistics Revolving Facility        
Line of Credit Facility [Line Items]        
Total Capacity $ 50.0