Goodwill (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill.

Schedule of changes in the carrying amount of goodwill

	(in millions)
Balance at January 1, 2012	$	1,244.3
Acquisitions		68.0
Effect of foreign currency translation		2.3
Balance at December 31, 2012		1,314.6
Acquisitions		382.4
Effect of foreign currency translation		(5.4	)
Balance at December 31, 2013		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