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Summary of Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2014
SUMMARY OF ACCOUNTING POLICIES [Abstract]  
Schedule of Other Costs [Table Text Block]
Engineering, research, development, and advertising expenses for the years ended
December 31 were as follows (in billions):
 
2014
 
2013
 
2012
Engineering, research, and development
$
6.9

 
$
6.4

 
$
5.5

Advertising
4.3

 
4.4

 
4.0