Retirement Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2012 United States Pension Plans of US Entity, Defined Benefit [Member]	Sep. 30, 2011 United States Pension Plans of US Entity, Defined Benefit [Member]	Sep. 30, 2012 United States Pension Plans of US Entity, Defined Benefit [Member]	Sep. 30, 2011 United States Pension Plans of US Entity, Defined Benefit [Member]	Sep. 30, 2012 Foreign Pension Plans, Defined Benefit [Member]	Sep. 30, 2011 Foreign Pension Plans, Defined Benefit [Member]	Sep. 30, 2012 Foreign Pension Plans, Defined Benefit [Member]	Sep. 30, 2011 Foreign Pension Plans, Defined Benefit [Member]	Sep. 30, 2012 Other Postretirement Benefit Plans, Defined Benefit [Member]	Sep. 30, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Sep. 30, 2012 Other Postretirement Benefit Plans, Defined Benefit [Member]	Sep. 30, 2011 Other Postretirement Benefit Plans, Defined Benefit [Member]	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2012 Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year															$ 30	$ 40
Actual contribution to defined benefit pension plans	14.6
Settlement Agreement For Cash Contribution To Plan		15
Components of net periodic benefit cost:
Service cost			0	0	0	0	2.2	2.7	6.8	7.9	0.1	0.2	0.4	0.5
Interest cost			3.6	4.0	10.8	12.1	4.2	4.3	12.9	13.3	2.5	2.9	7.6	8.8
Expected return on plan assets			(4.7)	(5.2)	(14.1)	(15.6)	(2.3)	(2.8)	(6.9)	(8.5)	0	0	0	0
Amortization of unrecognized prior service benefit			(0.2)	(0.2)	(0.6)	(0.6)	0	0	0	0	(1.6)	(1.7)	(4.8)	(5.1)
Amortization of unrecognized loss			2.0	1.7	6.1	4.9	0.4	0.2	0.9	0.6	1.8	2.0	5.2	6.0
Net periodic benefit cost			$ 0.7	$ 0.3	$ 2.2	$ 0.8	$ 4.5	$ 4.4	$ 13.7	$ 13.3	$ 2.8	$ 3.4	$ 8.4	$ 10.2