Defined Benefit Pension Plans (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items]
Pension Expense			$ 3.5	$ 3.7
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	0.9	0.8	1.9	1.6
Interest cost	3.6	3.3	7.3	6.5
Expected return on plan assets	(4.2)	(4.1)	(8.5)	(8.2)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	0	0	0.1
Defined Benefit Plan, Amortization of Gains (Losses)	1.4	1.9	2.8	3.7
Net periodic pension cost	1.7	1.9	3.5	3.7
Pension Contributions			2.2
Maximum [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year			13.0
Minimum [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year			$ 11.0