Inventories (Tables)

3 Months Ended

Mar. 31, 2017

Inventories [Abstract]

Inventories at Lower of Cost or Realizable Value

The table below presents the components of inventories at the lower of cost (first-in, first-out or average cost) or realizable value.

	March 31, 2017		December 31, 2016
	(in millions)
Raw materials, components and sub-assemblies	$	184	$	165
Work in process		93		106
Finished goods		76		59
Total	$	353	$	330