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ASSETS IMPAIRMENTS AND RESTRUCTURING (Tables)
 9 Months Ended
Sep. 30, 2017
Restructuring Costs and Asset Impairment Charges [Abstract]  
Restructuring and Related Costs [Table Text Block]
 
 
 
 
 
 
 
 
 
Third Quarter
 
First Nine Months
(Dollars in millions)
2017
 
2016
 
2017
 
2016
Severance
$
—

 
$
30

 
$
—

 
$
30

Gain on sale of assets
—

 
—

 
—

 
(2
)
Total
$
—

 
$
30

 
$
—

 
$
28
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
The following table summarizes the changes in asset impairments and restructuring charges and gains, the non-cash reductions attributable to asset impairments, and the cash reductions in restructuring reserves for severance costs and site closure costs paid in first nine months 2017 and full year 2016:
(Dollars in millions)
Balance at January 1, 2017
 
Provision/ Adjustments
 
Non-cash Reductions/
Additions
 
Cash Reductions
 
Balance at September 30, 2017
Severance costs
$
42

 
$
—

 
$
1

 
$
(26
)
 
$
17

Site closure and restructuring costs
13

 
—

 
1

 
(5
)
 
9

Total
$
55

 
$
—

 
$
2

 
$
(31
)
 
$
26



(Dollars in millions)
Balance at January 1, 2016
 
Provision/ Adjustments
 
Non-cash Reductions/
Additions
 
Cash Reductions
 
Balance at December 31, 2016
Non-cash charges
$
—

 
$
12

 
$
(12
)
 
$
—

 
$
—

Severance costs
55

 
32

 
—

 
(45
)
 
42

Site closure and restructuring costs
11

 
1

 
4

 
(3
)
 
13

Total
$
66

 
$
45

 
$
(8
)
 
$
(48
)
 
$
55