Goodwill (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill Disclosure

Schedule of changes in the carrying amount of goodwill

	(in millions)
Balance at January 1, 2016	$	1,724.8
Acquisitions		103.4
Disposal of businesses		(1.0)
Effect of foreign currency translation		0.2
Balance at December 31, 2016		1,827.4
Acquisitions		10.3
Effect of foreign currency translation		4.9
Balance at December 31, 2017		1,842.6
Acquisitions		33.8
Effect of foreign currency translation		(5.6)
Balance at December 31, 2018	$	1,870.8