v3.19.3
Cover Page - shares
9 Months Ended
Sep. 30, 2019
Nov. 04, 2019
Cover page.    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2019  
Document Transition Report false  
Entity File Number 1-13245  
Entity Registrant Name PIONEER NATURAL RESOURCES CO  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 75-2702753  
Entity Address, Address Line One 5205 N. O'Connor Blvd.  
Entity Address, Address Line Two Suite 200  
Entity Address, City or Town Irving  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 75039  
City Area Code 972  
Local Phone Number 444-9001  
Title of 12(b) Security Common Stock, par value $.01 per share  
Trading Symbol PXD  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   165,646,527
Amendment Flag false  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --12-31  
Entity Central Index Key 0001038357