Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventories comprise:

(In millions)	December 31, 2017		December 31, 2016
Finished goods	$	926.1	$	1,380.0
Work-in-progress	1,574.0		1,491.0
Raw materials	791.4		691.3
	$	3,291.5	$	3,562.3