Inventories (Tables)

9 Months Ended

Oct. 01, 2017

Inventory Disclosure [Abstract]

Inventories

	Balance at
Inventories (in millions):	October 1, 2017			January 1, 2017
Raw materials and supplies	$	201.2		$	146.0
Work in process	193.4			147.8
Finished goods	57.7			43.0
	452.3			336.8
Progress payments	(8.4		)	(9.1		)
Reduction to LIFO cost basis	(12.0		)	(13.5		)
Total inventories, net	$	431.9		$	314.2