Consolidated Statements Of Comprehensive Income (Unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other comprehensive income (loss):
Income tax expense (benefit) on translation adjustments on net investment hedge	$ 1.0	$ (3.6)	$ 0.6	$ 3.8
Income tax expense (benefit) on unrealized gain (loss) on investments	1.0	(0.4)	1.3	0
Income tax expense (benefit) on defined benefit pension plans and retiree health care plan	$ 0.4	$ 1.0	$ 0.4	$ 1.0