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Property, Plant and Equipment, net (Tables)
12 Months Ended
Dec. 31, 2018
Property Plant And Equipment [Abstract]  
Summary of Property, Plant and Equipment

Property, plant and equipment consist of (in millions):

 

 

 

Estimated

 

December 31,

 

 

 

Useful Lives

 

2018

 

 

2017

 

Information technology assets

 

1-7 Years

 

$

45

 

 

$

48

 

Operating equipment

 

2-15 Years

 

 

92

 

 

 

93

 

Buildings and land (1)

 

5-35 Years

 

 

99

 

 

 

97

 

Total property, plant and equipment

 

 

 

 

236

 

 

 

238

 

Less: accumulated depreciation

 

 

 

 

(130

)

 

 

(119

)

Property, plant and equipment, net

 

 

 

$

106

 

 

$

119

 

 

 

(1)

Land has an indefinite life.