XML 48 R33.htm IDEA: XBRL DOCUMENT v3.5.0.2
Acquisitions Acquisition of Terminal Assets from and Joint Venture With BP (Details)
$ in Millions
6 Months Ended
Feb. 01, 2016
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Business Acquisition [Line Items]      
Contributions from noncontrolling interests   $ 87 $ 0
BP Terminal Assets      
Business Acquisition [Line Items]      
Number of terminals 15    
Payments to Acquire Businesses, Gross $ 349 349  
New Joint Venture with BP [Member] | BP Terminal Assets      
Business Acquisition [Line Items]      
Jointly Owned Utility Plant, Proportionate Ownership Share 75.00%    
Number of terminals contributed to equity investment 14    
BP [Member] | New Joint Venture with BP [Member] | BP Terminal Assets      
Business Acquisition [Line Items]      
Jointly Owned Utility Plant, Proportionate Ownership Share 25.00%    
Contributions from noncontrolling interests   $ 84  
Terminals | New Joint Venture with BP [Member] | BP Terminal Assets      
Business Acquisition [Line Items]      
Number of terminals contributed to equity investment 10    
Products Pipelines | New Joint Venture with BP [Member] | BP Terminal Assets      
Business Acquisition [Line Items]      
Number of terminals contributed to equity investment 5