v3.6.0.2
Segment Disclosures, Results (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information                        
Cash and cash equivalents $ 688       $ 16       $ 688 $ 16 $ 19 $ 23
Revenues                        
Affiliate                 715 615 497  
Third-party                 505 497 103  
Total revenues 319 $ 308 $ 293 $ 300 292 $ 282 $ 275 $ 263 1,220 1,112 600  
Operating Income (Loss) 123 $ 127 $ 118 $ 119 97 $ 100 $ 97 $ 99 487 393 164  
Segment Reporting Operating Income Loss                 540 447 203  
Interest and financing costs, net                 (191) (150) (109)  
Equity in earnings of equity method investments                 13 7 1  
Other Income, net                 6 0 0  
Identifiable Assets                        
Total Assets 5,860       5,131       5,860 5,131    
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest                 315 250 56  
Depreciation and amortization expenses                 190 187 85  
Crude Oil Gathering [Member]                        
Revenues                        
Affiliate                 81 89 105  
Third-party                 258 250 30  
Total revenues                 339 339 135  
Operating Income (Loss)                 132 142 47  
Identifiable Assets                        
Total Assets 1,765       1,850       1,765 1,850    
Depreciation and amortization expenses                 62 67 11  
Capital expenditures                 99 213 156  
Processing                        
Revenues                        
Affiliate                 98 96 7  
Third-party                 178 182 16  
Total revenues                 276 278 23  
Operating Income (Loss)                 111 105 6  
Identifiable Assets                        
Total Assets 1,627       1,619       1,627 1,619    
Depreciation and amortization expenses                 45 44 4  
Capital expenditures                 20 15 4  
Terminalling and Transportation                        
Revenues                        
Affiliate [1]                 536 430 385  
Third-party                 69 65 57  
Total revenues                 605 495 442  
Operating Income (Loss)                 297 200 150  
Identifiable Assets                        
Total Assets 1,768       1,641       1,768 1,641    
Depreciation and amortization expenses                 83 76 70  
Capital expenditures                 154 158 112  
Corporate, Non-Segment [Member]                        
Revenues                        
Unallocated general and administrative expenses                 53 54 39  
Identifiable Assets                        
Total Assets [2] $ 700       $ 21       700 21    
4610 Pipe Lines (No Natural Gas)                        
Identifiable Assets                        
Depreciation and amortization expenses                     85  
Capital expenditures                 $ 273 $ 386 $ 272  
[1] Our Predecessors did not record revenue for transactions with Tesoro in the Terminalling and Transportation segment for assets acquired in the Acquisitions from Tesoro prior to the effective date of each acquisition, except for the RCA tariffs charged to Tesoro on the refined products pipeline included in the acquisition of the West Coast Logistics Assets.
[2] Other consists mainly of $688 million in cash and cash equivalents as of December 31, 2016, which was used to fund the acquisition of the North Dakota Gathering and Processing Assets on January 1, 2017.