Employee Benefit Plans (Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Foreign currency changes	$ (176.0)	$ 59.6	$ 192.8
Pension Benefits U.S. Plans [Member]
Service cost	12.8	11.9	11.7
Interest cost	32.6	35.6	40.4
Expected return on plan assets	(36.2)	(36.9)	(43.0)
Amortization of prior service credit	(0.3)	(0.3)	(0.3)
Amortization of actuarial losses	45.4	38.5	29.5
Amortization of transition obligation	0	0	0
Settlements/curtailments	(0.3)	1.2	6.0
Other	0	0	0
Net periodic benefit costs	54.0	50.0	44.3
Actuarial (gains) losses	89.2	20.9	(38.5)
Prior service cost (credit)	0	(0.2)	(1.3)
Amortization of prior service credit	0.2	0.3	0.3
Amortization of actuarial losses	(45.4)	(38.4)	(29.5)
Amortization of transition obligation	0	0	0
Settlements/curtailments	0	0.2	0.2
Foreign currency changes	0	0	0
Total recognized in other comprehensive loss	44.0	(17.2)	(68.8)
Recognized in benefit cost and other comprehensive (income) loss	98.0	32.8	(24.5)
Pension Benefits Non-U.S. Plans [Member]
Service cost	15.4	14.6	12.2
Interest cost	39.7	39.3	38.6
Expected return on plan assets	(41.1)	(37.7)	(35.6)
Amortization of prior service credit	(1.6)	(1.3)	(1.3)
Amortization of actuarial losses	13.5	13.0	10.8
Amortization of transition obligation	0.1	0.1	0.1
Settlements/curtailments	1.4	1.6	12.2
Other	0.6	0.6	0.6
Net periodic benefit costs	28.0	30.2	37.6
Actuarial (gains) losses	62.7	(3.0)	17.1
Prior service cost (credit)	(4.6)	0	1.6
Amortization of prior service credit	1.6	1.3	1.3
Amortization of actuarial losses	(14.8)	(14.5)	(18.3)
Amortization of transition obligation	(0.1)	(0.1)	(0.1)
Settlements/curtailments	0	0	0
Foreign currency changes	(2.9)	(9.5)	18.9
Total recognized in other comprehensive loss	41.9	(25.8)	20.5
Recognized in benefit cost and other comprehensive (income) loss	69.9	4.4	58.1
Postretirement Benefits [Member]
Service cost	2.0	2.0	3.2
Interest cost	6.4	7.1	9.9
Expected return on plan assets	(2.2)	(2.4)	(2.5)
Amortization of prior service credit	(16.0)	(17.0)	(9.7)
Amortization of actuarial losses	3.2	3.5	3.2
Amortization of transition obligation	0	0	0
Settlements/curtailments	(0.8)	0	(0.4)
Other	0	0	0
Net periodic benefit costs	(7.4)	(6.8)	3.7
Actuarial (gains) losses	5.2	(3.8)	18.3
Prior service cost (credit)	17.0	17.0	(64.0)
Amortization of prior service credit	(3.2)	(3.6)	9.7
Amortization of actuarial losses	0	0	(3.2)
Amortization of transition obligation	0	0	0
Settlements/curtailments	0	0	1.0
Foreign currency changes	(0.3)	0.1	1.0
Total recognized in other comprehensive loss	18.7	9.7	(37.2)
Recognized in benefit cost and other comprehensive (income) loss	$ 11.3	$ 2.9	$ (33.5)