Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory, Net [Abstract]

Schedule Of Inventory

The classes of inventory as of December 31 are summarized as follows ($ in millions):

	2016		2015
Finished goods	$	884.4	$	854.6
Work in process	299.4		242.8
Raw materials	525.6		475.7
Total	$	1,709.4	$	1,573.1