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OTHER OPERATING COSTS, NET (Tables)
 6 Months Ended
Jun. 30, 2018
Items Included in Other Operating Costs, Net
ITEMS INCLUDED IN OTHER OPERATING COSTS, NET
 
QUARTER ENDED
 
YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS
JUNE 2018
 
JUNE 2017
 
JUNE 2018
 
JUNE 2017
Gain on disposition of nonstrategic assets 
$
(1
)
 
$
(2
)
 
$
(3
)
 
$
(9
)
Foreign exchange losses, net
(2
)
 
—

 
—

 
3

Litigation expense, net
8

 
3

 
13

 
6

Other, net(1)
12

 
11

 
35

 
14

Total other operating costs, net
$
17

 
$
12

 
$
45

 
$
14