Goodwill

3 Months Ended

Mar. 31, 2017

Goodwill.

Goodwill

4.  Goodwill

The change in the carrying amount of goodwill is as follows:

	(in millions)
Balance at January 1, 2017	$	1,827.4
Acquisition		1.3
Effect of foreign currency translation		0.5
Balance at March 31, 2017	$	1,829.2

We had no accumulated impairment losses related to goodwill at March 31, 2017.