Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ (24.3)	$ 55.8	$ 22.4	$ 52.1
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	27.3	(3.5)	(82.3)	(11.0)
Unrealized gain (loss) on securities	(0.1)	1.0	0.4	0.8
Unrealized gain (loss) on derivatives	0.3	(5.5)	(4.5)	(5.0)
Unrealized gain (loss) on pension and other benefit plan obligations	(2.8)	(0.7)	(4.0)	4.8
Other comprehensive income (loss), before tax	24.7	(8.7)	(90.4)	(10.4)
Income tax benefit related to items of other comprehensive income	0.8	2.3	3.4	1.0
Other comprehensive income (loss), net of tax	25.5	(6.4)	(87.0)	(9.4)
Comprehensive income (loss)	1.2	49.4	(64.6)	42.7
Less: Comprehensive income attributable to noncontrolling interests	1.0	2.0	2.2	1.5
Comprehensive income (loss) attributable to controlling interests	$ 0.2	$ 47.4	$ (66.8)	$ 41.2