Inventories

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Inventories

INVENTORIES

Inventories are stated at the lower of cost, determined on a first-in, first-out basis, or net realizable value, including direct material costs and direct and indirect manufacturing costs. A summary of inventories is shown below:

	December 31, 2017		December 31, 2016
	(in millions)
Productive material	$	584	$	491
Work-in-process	100		72
Finished goods	399		296
Total	$	1,083	$	859