Inventories, Net of Inventory Reserves

3 Months Ended

Mar. 31, 2018

Inventories, Net of Inventory Reserves [Abstract]

Inventories, Net of Inventory Reserves

7.   Inventories, Net of Inventory Reserves

Inventories, net of inventory reserves comprise the following (in millions):

	March 31,		December 31,
	2018		2017
Finished goods	$	786	$	739
Work in process		340		322
Raw materials and accessories		350		306
Supplies and packing materials		358		345
Total inventories, net of inventory reserves	$	1,834	$	1,712