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Warranty Obligations (Tables)
 6 Months Ended
Jun. 30, 2018
Product Warranties Disclosures [Abstract]  
Changes in Warranty Liabilities [Table Text Block]
Changes in warranty liabilities — 
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2018
 
2017
 
2018
 
2017
Balance, beginning of period
$
76

 
$
73

 
$
76

 
$
66

Acquisitions
1

 


 
1

 
8

Amounts accrued for current period sales
8

 
8

 
18

 
15

Adjustments of prior estimates


 
2

 


 
5

Settlements of warranty claims
(8
)
 
(11
)
 
(19
)
 
(23
)
Currency impact
(2
)
 
2

 
(1
)
 
3

Balance, end of period
$
75

 
$
74

 
$
75

 
$
74