Goodwill (Tables)

6 Months Ended

Jun. 30, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Change in Carrying Value of Goodwill

The change in carrying value of goodwill as of and for the six months ended June 30, 2019 is as follows (in millions):

Balance at December 31, 2018	$	7,858.0
Adjustments to prior acquisitions		(4.9	)
Effect of foreign currency translation		33.0
Balance at June 30, 2019	$	7,886.1