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Valuation and Qualifying Accounts (Tables)
12 Months Ended
Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]  
Valuation And Qualifying Accounts
The following table presents the valuation and qualifying account activity for the years ended December 31, 2017, 2016, and 2015:
 
Balance at
January 1
 
Charged to
Earnings
 
Used
 
Adjustments*
 
Balance at
December 31
2017
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
44

 
$
16

 
$
(16
)
 
$
1

 
$
45

Inventory reserves
131

 
21

 
(19
)
 

 
133

2016
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
28

 
44

 
(26
)
 
(2
)
 
44

Inventory reserves
142

 
20

 
(33
)
 
2

 
131

2015
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
35

 
9

 
(17
)
 
1

 
28

Inventory reserves
131

 
24

 
(13
)
 

 
142

* Adjustments include translation adjustments