Inventories (Tables)

9 Months Ended

Sep. 30, 2011

Inventories (Tables) [Abstract]

Inventories at Lower of Cost or Market

	September 30,		December 31,
	2011		2010
	(in millions)
Raw materials, components and sub-assemblies	$	139	$	114
Work in process		153		130
Finished goods		60		59
Total	$	352	$	303