Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventory, Net [Abstract]

Schedule Of Inventory

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

	2018		2017
Finished goods	$	1,031.2	$	982.5
Work in process	313.9		309.7
Raw materials	565.0		548.6
Total	$	1,910.1	$	1,840.8