Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories at June 30, 2015 and December 31, 2014 were as follows (in millions):

	June 30, 2015			December 31, 2014
Raw materials and supplies	$	239.2		$	249.3
Work-in-process	1,166.3			1,184.1
Finished goods	191.8			172.2
Total inventories at current cost	1,597.3			1,605.6
Adjustment from current cost to LIFO cost basis	9.3			4.8
Inventory valuation reserves	(71.0		)	(68.8		)
Progress payments	(62.7		)	(68.8		)
Total inventories, net	$	1,472.9		$	1,472.8