Goodwill And Intangible Assets (Changes To Goodwill) (Detail) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Balance at beginning of period	$ 1,167.9	$ 1,193.3
Currency translation and other	9.0	(23.4)
Balance at end of period	$ 1,176.9	$ 1,167.9