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EQUITY METHOD INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2016
EQUITY METHOD INVESTMENTS [Abstract]  
Schedule of Equity Method Investments [Table Text Block]
As of December 31, 2016 and 2015, investments in investees and joint ventures accounted for under the equity method, included in Other assets on our consolidated balance sheet, were as follows (dollars in millions):
 
 
Ownership Interest as of
December 31, 2016
 
2016
 
Ownership Interest as of
December 31, 2015
 
2015
South Fork Plant (U.S.)
 
50%
 
$
—

 
50%
 
$
—

Koma Kulshan Plant (U.S.)
 
50%
 
4

 
50%
 
5

TARTECH (U.S.) (1)
 
50%
 
1

 
50%
 
5

Ambiente 2000 (Italy)
 
40%
 
—

 
40%
 
—

Total investments in investees and joint ventures
 
 
 
$
5

 
 
 
$
10

 
 
 
 
 
 
 
 
 
Investments in investees and joint ventures classified as held for sale: (2)
 
 
 
 
 
 
 
 
Sanfeng (China)
 
—%
 
—

 
40%
 
$
17

Chengdu (China)
 
—%
 
—

 
49%
 
22

Total investments in investees and joint ventures classified as held for sale
 
 
 
$
—

 
 
 
$
39


(1)
During 2016, we recorded a net impairment of our investment in this joint venture, see Note 14. Supplementary Information for additional information.
(2)
During 2016, we divested the majority of our investments in China, see Note 4. Dispositions, Assets Held for Sale and Discontinued Operations for additional information.