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INCOME TAXES (Tables)
6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
 
Second Quarter
 
First Six Months
(Dollars in millions)
2018
 
2017
 
2018
 
2017
 
$
 
%
 
$
 
%
 
$
 
%
 
$
 
%
Provision for income taxes and tax rate
$
84

 
20
%
 
$
65

 
18
%
 
$
144

 
19
%
 
$
127

 
18
%