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ASSET IMPAIRMENTS AND RESTRUCTURING (Tables)
 12 Months Ended
Dec. 31, 2016
Restructuring Costs and Asset Impairment Charges [Abstract]  
Schedule of Restructuring and Related Charges
 
For years ended December 31,
(Dollars in millions)
2016
 
2015
 
2014
Asset impairments
$
12

 
$
85

 
$
28

Gain on sale of assets, net
(2
)
 
(1
)
 
(7
)
Intangible asset and goodwill impairments
—

 
22

 
24

Severance charges
32

 
68

 
13

Site closure and restructuring charges
3

 
9

 
19

Total
$
45

 
$
183

 
$
77
Schedule of Changes to Restructuring Reserve and Related Activities
 
Balance at
January 1,
2016
 
Provision/ Adjustments
 
Non-cash Reductions/ Additions
 
Cash
Reductions
 
Balance at
December 31,
2016
Noncash charges
$
—

 
$
12

 
$
(12
)
 
$
—

 
$
—

Severance costs
55

 
32

 
—

 
(45
)
 
42

Site closure & restructuring costs
11

 
1

 
4

 
(3
)
 
13

Total
$
66

 
$
45

 
$
(8
)
 
$
(48
)
 
$
55

 
Balance at
January 1,
2015
 
Provision/ Adjustments
 
Non-cash Reductions/ Additions
 
Cash
Reductions
 
Balance at
December 31,
2015
Noncash charges
$
—

 
$
107

 
$
(107
)
 
$
—

 
$
—

Severance costs
13

 
67

 
1

 
(26
)
 
55

Site closure & restructuring costs
15

 
9

 
3

 
(16
)
 
11

Total
$
28

 
$
183

 
$
(103
)
 
$
(42
)
 
$
66

 
Balance at
January 1,
2014
 
Provision/ Adjustments
 
Non-cash Reductions/ Additions
 
Cash
Reductions
 
Balance at
December 31,
2014
Noncash charges
$
—

 
$
52

 
$
(52
)
 
$
—

 
$
—

Severance costs
22

 
13

 
—

 
(22
)
 
13

Site closure & restructuring costs
14

 
12

 
(4
)
 
(7
)
 
15

Total
$
36

 
$
77

 
$
(56
)
 
$
(29
)
 
$
28