Lines of Credit and Financing Arrangements (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	May 31, 2010
Short-Term Debt:
Asset Securitization Program	$ 25.0	$ 0
Foreign obligations	6.1	4.7
Total short-term debt	31.1	4.7
Current maturities of long-term debt	0.3	0.8
Long-Term Debt:
Capital lease obligations	16.6	16.6
Domestic revolving credit facility	233.0	243.0
Total long-term debt	449.6	459.6
Total debt	481.0	465.1
Senior Notes [Member]
Long-Term Debt:
Senior unsecured notes	$ 200.0	$ 200.0	$ 200.0