Employee Benefit Plans (Changes in Benefit Obligation) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Ending fair value of plan assets	$ 166.7	$ 160.5
U.S. Plans [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning benefit obligation	152.6	143.2
Impact of foreign currency exchange rate change	0	0
Service cost	1.4	1.4	1.5
Interest cost	8.1	8.3	8.2
Curtailment loss	0	0
Settlements (gain) loss	0	0
Benefits paid	(9.8)	(10.0)
Employee contributions	0	0
Amendments / Change in assumptions	0.7	0.4
Actuarial (gain) loss	14.2	9.3
Ending benefit obligation	167.2	152.6	143.2
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Beginning fair value of plan assets	123.6	110.0
Impact of foreign currency exchange rate change	0	0
Actual return on plan assets	(4.7)	13.6
Company contributions	17.5	10.0
Settlements	0	0
Ending fair value of plan assets	126.6	123.6	110.0
Funded status at end of year	(40.6)	(29.0)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Other Assets	0	0
Accrued liabilities	(0.4)	(0.4)
Other liabilities	(40.2)	(28.6)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net actuarial loss	84.9	60.2
Prior service cost	0.6	0.4
Transition obligation	0	0
Total recognized in accumulated other comprehensive income	85.5	60.6
Non-U.S. Plans [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning benefit obligation	107.5	99.5
Impact of foreign currency exchange rate change	(2.8)	(0.9)
Service cost	3.1	2.7	2.6
Interest cost	5.7	5.6	5.7
Curtailment loss	0	(1.8)
Settlements (gain) loss	(1.4)	(1.0)
Benefits paid	(4.9)	(6.3)
Employee contributions	0.1	0.1
Amendments / Change in assumptions	4.1	2.4
Actuarial (gain) loss	2.8	7.2
Ending benefit obligation	114.2	107.5	99.5
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Beginning fair value of plan assets	36.9	29.3
Impact of foreign currency exchange rate change	(0.7)	0.9
Actual return on plan assets	3.3	2.1
Company contributions	6.9	10.9
Settlements	(1.4)	0
Ending fair value of plan assets	40.1	36.9	29.3
Funded status at end of year	(74.1)	(70.6)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Other Assets	7.5	5.0
Accrued liabilities	(4.3)	(3.4)
Other liabilities	(77.3)	(72.2)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net actuarial loss	15.1	13.2
Prior service cost	6.8	3.2
Transition obligation	0.6	0.8
Total recognized in accumulated other comprehensive income	$ 22.5	$ 17.2