v3.26.1
Debt - Schedule of Carrying Amounts of Long-Term Debt (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Total debt at face value $ 2,800 $ 2,800
Unamortized discount and debt issuance costs (28) (31)
Long-term debt 2,772 2,769
Level 2    
Debt Instrument [Line Items]    
HF Sinclair, HollyFrontier and HEP Senior Notes 2,834 2,858
Senior Notes    
Debt Instrument [Line Items]    
Total debt at face value 2,800 2,800
Senior Notes | HEP    
Debt Instrument [Line Items]    
Total debt at face value 1 1
Senior Notes | HF Sinclair Senior Notes:    
Debt Instrument [Line Items]    
Total debt at face value $ 2,724 2,724
Senior Notes | 5.000% Senior Notes    
Debt Instrument [Line Items]    
Stated interest rate 5.00%  
Total debt at face value $ 499 499
Senior Notes | 4.500% Senior Notes    
Debt Instrument [Line Items]    
Stated interest rate 4.50%  
Total debt at face value $ 325 325
Senior Notes | 5.750% Senior Notes    
Debt Instrument [Line Items]    
Stated interest rate 5.75%  
Total debt at face value $ 650 650
Senior Notes | 5.500% Senior Notes    
Debt Instrument [Line Items]    
Stated interest rate 5.50%  
Total debt at face value $ 500 500
Senior Notes | 6.250% Senior Notes    
Debt Instrument [Line Items]    
Stated interest rate 6.25%  
Total debt at face value $ 750 750
Senior Notes | HollyFrontier Senior Notes:    
Debt Instrument [Line Items]    
Total debt at face value $ 75 75
Senior Notes | 4.500% Senior Notes    
Debt Instrument [Line Items]    
Stated interest rate 4.50%  
Total debt at face value $ 75 75
Senior Notes | HEP 5.000% Senior Notes | HEP    
Debt Instrument [Line Items]    
Stated interest rate 5.00%  
Total debt at face value $ 1 1
Line of Credit    
Debt Instrument [Line Items]    
Total debt at face value 0 0
Line of Credit | Senior Unsecured Revolving Credit Facility Maturing April 2030    
Debt Instrument [Line Items]    
Total debt at face value $ 0 $ 0