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Property, Plant and Equipment (Notes)
 6 Months Ended
Jun. 30, 2017
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
PROPERTY, PLANT AND EQUIPMENT
 
PROPERTY, PLANT AND EQUIPMENT BY SEGMENT (in millions)

 
June 30,
2017
 
December 31, 2016
Gathering and Processing
$
2,593

 
$
1,983

Terminalling and Transportation
2,120

 
2,076

Property, Plant and Equipment, at Cost
4,713

 
4,059

Accumulated depreciation
(702
)
 
(615
)
Property, Plant and Equipment, Net
$
4,011

 
$
3,444