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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
 12 Months Ended
Dec. 31, 2016
Supplemental Cash Flow Information [Abstract]  
Schedule of Cash Flow Supplemental Disclosures Other Items
Included in the line item "Other items, net" of the "Operating activities" section of the Consolidated Statements of Cash Flows are specific changes to certain balance sheet accounts as follows:
 
For years ended December 31,
(Dollars in millions)
2016
 
2015
 
2014
Current assets
$
(35
)
 
$
5

 
$
(12
)
Other assets
37

 
75

 
45

Current liabilities
(98
)
 
22

 
(88
)
Long-term liabilities
(29
)
 
(72
)
 
52

Total
$
(125
)
 
$
30

 
$
(3
)
Schedule of Cash Paid for Interest and Income Taxes and Noncash Investing and Financing Activities
 
For years ended December 31,
(Dollars in millions)
2016
 
2015
 
2014
Cash paid for interest and income taxes is as follows:
 
 
 
 
 
Interest, net of amounts capitalized
$
280

 
$
265

 
$
184

Income taxes
120

 
124

 
152

Non-cash investing and financing activities:
 
 
 
 
 
Outstanding trade payables related to capital expenditures
34

 
10

 
19

(Gain) loss from equity investments
(15
)
 
(15
)
 
(13
)