Lines of Credit and Financing Arrangements (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Short-Term Debt:
Short-term Debt	$ 226.1	$ 226.6
Current maturities of long-term debt:
Capital lease obligations	1.3	1.5
Total current maturities of long-term debt	16.3	24.0
Long-Term Debt:
Capital lease obligations	15.2	15.5
Total long-term debt	813.2	675.0
Total debt	1,055.6	925.6
Domestic revolving credit facility [Member]
Current maturities of long-term debt:
Domestic credit facility	15.0	22.5
Long-Term Debt:
Long-term debt	598.0	459.5
Senior unsecured notes [Member]
Long-Term Debt:
Long-term debt	200.0	200.0
Asset Securitization [Member]
Short-Term Debt:
Short-term Debt	220.0	220.0
Foreign obligations [Member]
Short-Term Debt:
Short-term Debt	$ 6.1	$ 6.6