Employee Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
U.S. Pension Plans
Components of periodic benefit costs
Number of pension plans for which benefit accruals are not frozen	0		0
Service cost-benefits earned during the period		$ 0.1		$ 0.3
Interest cost of projected benefit obligations	2.6	2.6	5.2	5.1
Expected return on plan assets	(2.4)	(2.3)	(4.8)	(4.6)
Amortization of actuarial net (gain) loss	0.4		0.8	0.1
Net periodic benefit costs	0.6	0.4	1.2	0.9
Non-U.S. Pension Plans
Components of periodic benefit costs
Service cost-benefits earned during the period	0.5	0.5	0.9	1.0
Interest cost of projected benefit obligations	2.5	2.7	5.1	5.5
Expected return on plan assets	(2.3)	(2.4)	(4.5)	(4.8)
Amortization of actuarial net (gain) loss	0.1		0.2	0.1
Net periodic benefit costs	0.8	0.8	1.7	1.8
Postretirement Health and Other Plans
Components of periodic benefit costs
Service cost-benefits earned during the period	0.2	0.2	0.4	0.4
Interest cost of projected benefit obligations	0.8	0.9	1.6	1.8
Amortization of actuarial net (gain) loss	0.1	0.1	0.2	0.1
Net periodic benefit costs	$ 1.1	$ 1.2	$ 2.2	$ 2.3