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PROPERTIES AND ACCUMULATED DEPRECIATION (Tables)
12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
Schedule of Properties
 
December 31,
(Dollars in millions)
2015
 
2014
Properties
 
 
 
Land
$
163

 
$
175

Buildings and building equipment
1,148

 
1,128

Machinery and equipment
9,333

 
9,252

Construction in progress
590

 
471

Properties and equipment at cost
$
11,234

 
$
11,026

Less:  Accumulated depreciation
6,104

 
5,939

Net properties
$
5,130

 
$
5,087