v3.8.0.1
Equity Equity, Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Nov. 14, 2017
Oct. 30, 2017
Oct. 18, 2017
Sep. 30, 2017
Jun. 30, 2017
 [1]
Mar. 31, 2017
 [1]
Dec. 31, 2016
Sep. 30, 2017
Sep. 30, 2016
Feb. 27, 2017
Distribution Made to Limited Partner, Distributions Declared, Per Unit       $ 0.9852 [1],[2] $ 0.9710 $ 0.9400 $ 0.9100      
Distribution Made to Limited Partner, Distribution Date       Nov. 14, 2017 [1],[2] Aug. 14, 2017 May 15, 2017 Feb. 14, 2017      
(Gain) loss attributable to Predecessors [3]               $ (15) $ 21  
General partner units issued (units)       2,202,880     2,100,900 2,202,880   101,980
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest               2.00%    
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage               33.00%    
Common units issued (units)       108,075,130     102,981,495 108,075,130   5,000,000
Shares Issued, Price Per Share                   $ 56.19
Proceeds from issuance of units, net of issuance costs               $ 287    
Public common units                    
Limited Partners' Capital Account, Units Outstanding       74,020,088       74,020,088    
Andeavor common units                    
Limited Partners' Capital Account, Units Outstanding       34,055,042       34,055,042    
Common                    
(Gain) loss attributable to Predecessors               $ 0    
Proceeds from issuance of units, net of issuance costs               281    
General Partner                    
(Gain) loss attributable to Predecessors               0    
Proceeds from issuance of units, net of issuance costs               $ 6    
Subsequent Event                    
Distribution Made to Limited Partner, Declaration Date     Oct. 18, 2017              
WNRL Merger | Subsequent Event                    
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage   59.00%                
WNRL Merger | Subsequent Event | Public common units                    
Limited Partners' Capital Account, Units Outstanding   89,203,084                
Common units issued (units)   15,182,996                
WNRL Merger | Subsequent Event | Andeavor common units                    
Limited Partners' Capital Account, Units Outstanding   126,908,584                
Common units issued (units)   14,853,542                
IDR/GP Transaction | Subsequent Event                    
Common units issued (units)   78,000,000                
Western Refining Logistics                    
Distribution Made to Limited Partner, Distributions Declared, Per Unit [4],[5]       $ 0.4675            
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage               52.00%    
Western Refining Logistics | Public common units                    
Limited Partners' Capital Account, Units Outstanding       29,013,944       29,013,944    
Western Refining Logistics | Andeavor common units                    
Limited Partners' Capital Account, Units Outstanding       32,018,847       32,018,847    
Western Refining Logistics | Subsequent Event                    
Distribution Made to Limited Partner, Declaration Date     Jul. 25, 2017              
Distribution Made to Limited Partner, Distribution Date Aug. 18, 2017                  
[1] This distribution is net of $12.5 million waived by TLGP on either IDRs or common units for each of the three months ended September 30, 2017, June 30, 2017, and March 31, 2017.
[2] This distribution was declared on October 18, 2017 and will be paid on the date of distribution.
[3] Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.
[4] Adjusted to include the historical results of the Predecessors. See Note 1 for further discussion.
[5] Total general partner earnings and limited partner earnings on common units for the nine months ended September 30, 2017 differ from the amounts recognized in equity as of September 30, 2017. The table above reconciles general and limited earnings calculated using the ownership structure in place after the WNRL Merger and IDR/GP Transaction to amounts recorded to equity as of September 30, 2017 by showing the earnings that were allocated to the general partner’s capital account based on the ownership structure in place for three months ended September 30, 2017.