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Property, Plant and Equipment
6 Months Ended
Jun. 30, 2017
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, Plant and Equipment
 
Property, plant and equipment with associated accumulated depreciation is shown below:
(In millions)
June 30, 2017
 
December 31, 2016
Natural gas gathering and NGL transportation pipelines and facilities
$
4,919

 
$
4,748

Processing, fractionation and storage facilities(1)
3,736

 
3,547

Pipelines and related assets
2,156

 
1,799

Barges and towing vessels
484

 
479

Terminals and related assets(1)
784

 
759

Land, building, office equipment and other
723

 
757

Construction-in-progress
816

 
1,013

Total
13,618

 
13,102

Less accumulated depreciation
1,980

 
1,694

Property, plant and equipment, net
$
11,638

 
$
11,408


(1)
Certain prior period amounts have been updated to conform to current period presentation.