Inventories, Net of Inventory Reserves (Tables)

12 Months Ended

Dec. 31, 2018

Inventories, Net of Inventory Reserves [Abstract]

Inventories, Net

	December 31,
	2018		2017
Finished goods	$	854	$	739
Work in process		386		322
Raw materials and accessories		409		306
Supplies and packing materials		388		345
Total inventories, net of inventory reserves	$	2,037	$	1,712