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Debt (Tables)
3 Months Ended
Mar. 31, 2018
Debt Disclosure [Abstract]  
Schedule of Debt [Table Text Block]
The Company’s short and long-term debt consists of the following:
 
March 31
 
December 31
 
2018
 
2017
 
(Dollars in Millions)
Short-Term Debt:
 
 
 
Current portion of long-term debt
$

 
$
2

Short-term borrowings
35

 
44

 
$
35

 
$
46

Long-Term Debt:
 
 
 
Term debt facility
$
347

 
$
347