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Accrued Liabilities
6 Months Ended
Jun. 30, 2018
Payables And Accruals [Abstract]  
Accrued Liabilities

4. Accrued Liabilities

Accrued liabilities consist of (in millions):

 

 

 

June 30, 2018

 

 

December 31, 2017

 

Compensation and other related expenses

 

$

32

 

 

$

36

 

Contract liabilities (1)

 

 

29

 

 

 

19

 

Taxes (non-income)

 

 

12

 

 

 

15

 

Other

 

 

30

 

 

 

33

 

Total

 

$

103

 

 

$

103

 

 

 

 

 

 

 

 

 

 

(1) Previously shown as customer credits and prepayments.