Goodwill (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill.

Schedule of changes in the carrying amount of goodwill

	(in millions)
Balance at January 1, 2014	$	1,691.6
Acquisitions		51.3
Consolidation of a joint venture entity		15.2
Purchase price allocation adjustments		2.1
Sale of business		(17.1)
Effect of foreign currency translation		(6.7)
Balance at December 31, 2014		1,736.4
Acquisitions		0.4
Purchase price allocation adjustments		(0.4)
Effect of foreign currency translation		(11.6)
Balance at December 31, 2015		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