Document and Entity Information
Aug. 07, 2019
Cover [Abstract]  
Document Period End Date Aug. 07, 2019
Entity Registrant Name HollyFrontier Corp
Amendment Flag true
Amendment Description Amendment 1
Entity Central Index Key 0000048039
Document Type 8-K/A
Entity Incorporation, State or Country Code DE
Entity File Number 001-03876
Entity Tax Identification Number 75-1056913
Entity Address, Address Line One 2828 N. Harwood
Entity Address, Address Line Two Suite 1300
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75201
City Area Code (214)
Local Phone Number 871-3555
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol HFC
Security Exchange Name NYSE
Entity Emerging Growth Company false