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Other (Income) Expense
 12 Months Ended
Dec. 31, 2018
Other Income and Expenses [Abstract]  
Other (Income) Expense Other (Income) Expense

 
 
2018
 
2017
 
2016
Foreign exchange net (gain) loss and other
 
$
1

 
$
5

 
$
(6
)
Loss associated with corporate aircraft(a)
 
—

 
2

 
9

Closure and impairment expense
 
6

 
3

 
15

Other (income) expense
 
$
7


$
10


$
18



(a)
During 2016, we made the decision to no longer operate a corporate aircraft fleet and offered our owned aircraft for sale, one of which was sold during 2016 and one that was sold in 2017. The losses associated with these sales reflect the shortfall of the proceeds, including estimated proceeds in held-for-sale impairment evaluations, less any selling costs, over the carrying value of the aircraft.