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Inventories, Net (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
 
December 31,
  
2018
 
2017
 
(in millions)
Raw materials
$
217

 
$
199

Work in process
70

 
107

Finished goods
1,492

 
1,424

 
$
1,779

 
$
1,730