Financing Arrangements (Details 1) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Long-term debt
Total Long-term debt	$ 522.7	$ 427.1
Less current maturities	0.7	250.7
Long-term debt	522.0	176.4
Senior Unsecured Notes - 3.875% [Member]
Long-term debt
Total Long-term debt	346.2	0
Series A Medium Term Note [Member]
Long-term debt
Total Long-term debt	175.0	175.0
Senior Unsecured Notes [Member]
Long-term debt
Total Long-term debt	0	249.9
Other Long Term Debt [Member]
Long-term debt
Total Long-term debt	$ 1.5	$ 2.2