Retirement Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 United States Pension Plan of US Entity, Defined Benefit [Member]	Jun. 30, 2012 United States Pension Plan of US Entity, Defined Benefit [Member]	Jun. 30, 2013 United States Pension Plan of US Entity, Defined Benefit [Member]	Jun. 30, 2012 United States Pension Plan of US Entity, Defined Benefit [Member]	Jun. 30, 2013 Foreign Pension Plan, Defined Benefit [Member]	Jun. 30, 2012 Foreign Pension Plan, Defined Benefit [Member]	Jun. 30, 2013 Foreign Pension Plan, Defined Benefit [Member]	Jun. 30, 2012 Foreign Pension Plan, Defined Benefit [Member]	Jun. 30, 2013 Other Postretirement Benefit Plan, Defined Benefit [Member]	Jun. 30, 2012 Other Postretirement Benefit Plan, Defined Benefit [Member]	Jun. 30, 2013 Other Postretirement Benefit Plan, Defined Benefit [Member]	Jun. 30, 2012 Other Postretirement Benefit Plan, Defined Benefit [Member]	Dec. 31, 2013 Minimum [Member]	Dec. 31, 2013 Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year														$ 15	$ 25
Actual contribution to defined benefit pension plans	10.0
Components of net periodic benefit cost:
Service cost		0	0	0	0	3.1	2.3	6.2	4.6	0.1	0.2	0.2	0.3
Interest cost		2.9	3.6	5.8	7.2	4.0	4.3	8.2	8.7	1.7	2.5	3.4	5.1
Expected return on plan assets		(4.5)	(4.7)	(9.1)	(9.4)	(2.7)	(2.3)	(5.4)	(4.6)	0	0	0	0
Amortization of unrecognized prior service benefit		(0.2)	(0.2)	(0.4)	(0.4)	0	0	0	0	(1.6)	(1.6)	(3.2)	(3.2)
Amortization of unrecognized loss		2.0	2.1	4.1	4.1	1.3	0.2	2.6	0.5	1.3	1.7	2.5	3.4
Net periodic benefit cost		$ 0.2	$ 0.8	$ 0.4	$ 1.5	$ 5.7	$ 4.5	$ 11.6	$ 9.2	$ 1.5	$ 2.8	$ 2.9	$ 5.6