Employee Benefit Plans (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
U.S. Pension Plans
Components of periodic benefit costs
Service cost-benefits earned during the period		$ 0.1		$ 0.4
Interest cost of projected benefit obligations	2.6	2.6	7.8	7.7
Expected return on plan assets	(2.4)	(2.3)	(7.2)	(7.0)
Amortization of actuarial net (gain) loss	0.4		1.2	0.2
Net periodic benefit costs	0.6	0.4	1.8	1.3
Non-U.S. Pension Plans
Components of periodic benefit costs
Service cost-benefits earned during the period	0.4	0.5	1.3	1.4
Interest cost of projected benefit obligations	2.6	2.7	7.7	8.2
Expected return on plan assets	(2.2)	(2.4)	(6.7)	(7.1)
Amortization of actuarial net (gain) loss	0.2		0.4	0.1
Net periodic benefit costs	1.0	0.8	2.7	2.6
Postretirement Health and Other Plans
Components of periodic benefit costs
Service cost-benefits earned during the period	0.2	0.2	0.6	0.6
Interest cost of projected benefit obligations	0.9	0.9	2.5	2.7
Amortization of actuarial net (gain) loss	0.1	0.1	0.3	0.2
Net periodic benefit costs	$ 1.2	$ 1.2	$ 3.4	$ 3.5