Employee Benefit Plans (Components of Net Periodic Benefit Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Pension Benefits U.S. Plans [Member]
Service cost	$ 3.8	$ 3.3
Interest cost	7.4	8.1
Expected return on plan assets	(9.2)	(9.1)
Amortization of prior service credit	(0.1)	(0.1)
Amortization of actuarial losses	11.8	11.9
Net periodic benefit costs	13.7	14.1
Pension Benefits Non-U.S. Plans [Member]
Service cost	4.5	4.1
Interest cost	9.8	10.1
Expected return on plan assets	(9.8)	(10.3)
Amortization of prior service credit	(0.4)	(0.3)
Amortization of actuarial losses	4.4	3.5
Net periodic benefit costs	8.5	7.1
Postretirement Benefits [Member]
Service cost	0.5	0.3
Interest cost	1.5	1.1
Expected return on plan assets	0	(0.3)
Amortization of prior service credit	(3.3)	(2.4)
Amortization of actuarial losses	1.0	0.5
Net periodic benefit costs	$ (0.3)	$ (0.8)