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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2018
Property, Plant and Equipment [Abstract]  
Components of property and equipment, net
Property and equipment, net is stated at cost and consisted of the following (in millions):
 
Estimated Useful
Lives (Years)
 
December 31,
 
 
2018
 
2017
Pipelines and related facilities (1)
10 - 70
 
$
10,137

 
$
9,585

Storage, terminal and rail facilities
30 - 70
 
5,854

 
5,558

Trucking equipment and other
2 - 15
 
410

 
414

Construction in progress
 
795

 
610

Office property and equipment
2 - 50
 
248

 
255

Land and other
N/A
 
422

 
440

Property and equipment, gross
 
 
17,866

 
16,862

Accumulated depreciation
 
 
(3,079
)
 
(2,773
)
Property and equipment, net
 
 
$
14,787

 
$
14,089


 
(1) 
We include rights-of-way, which are intangible assets, in our Pipelines and related facilities amounts within property and equipment.