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Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

The components of total inventories are summarized as follows:



(in millions)	September 30, 2017				December 31, 2016
Finished goods	$	234			$	220
Work in process	55				42
Raw materials	273				260
Total inventories	$	562			$	522