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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2016
Accounting Policies [Abstract]  
Accounts and notes receivable, net
 
 
2016
 
2015
Accounts and notes receivable
 
$
383

 
$
338

Allowance for doubtful accounts
 
(13
)
 
(14
)
Accounts and notes receivable, net
 
$
370

 
$
324