Financing Arrangements (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Line of Credit Facility [Line Items]
Short-term Debt	$ 82.1	$ 7.4
Long-term Fixed-rate Debt, Carrying Value	519.9	521.4
Financing Arrangements (Textual) [Abstract]
Line of Credit Facility, Fair Value of Amount Outstanding	555.7	522.7
Accounts Receivable, Net, Current	487.5	475.7
Series A Medium Term Note [Member]
Financing Arrangements (Textual) [Abstract]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 175.0	175.0
Fixed-rate Medium-Term Notes, Series A, Interest rate, Minimum	6.74%
Fixed-rate Medium-Term Notes, Series A, Interest rate, Maximum	7.76%
Debt Instruments, Maturity Date	May 01, 2028
Senior Unsecured Notes [Member]
Financing Arrangements (Textual) [Abstract]
Long-term Debt, Weighted Average Interest Rate			6.00%
Senior Unsecured Notes - 3.875% [Member]
Financing Arrangements (Textual) [Abstract]
Line of credit expiration date	May 11, 2016
Line of Credit Facility, Fair Value of Amount Outstanding	$ 344.9	346.4
Total Long-term debt			$ 350.0
Debt Instrument, Interest rate	3.875%
Debt Instruments, Maturity Date	Sep. 01, 2024
Long-term Debt, Weighted Average Interest Rate			3.875%
Senior Unsecured Notes - Variable Rate [Member]
Financing Arrangements (Textual) [Abstract]
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries	$ 464.3
Deferred Finance Costs, Gross	$ 1.7
Line of credit expiration date	Jun. 19, 2020
Line of Credit Facility, Fair Value of Amount Outstanding	$ 35.7	0.0
Debt Instrument, Interest rate	1.12%
Debt Instruments, Maturity Date	Jun. 30, 2015
Foreign Subsidiary [Member]
Financing Arrangements (Textual) [Abstract]
Borrowings guarantees	$ 5.2
Line of Credit Accounts Receivable Securitization [Member]
Line of Credit Facility [Line Items]
Short-term Debt	82.0
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit	100.0
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries	$ 0.0
Line of credit expiration date	Nov. 30, 2015
Senior Credit Facility [Member]
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit	$ 500.0
Number of Financial Covenant under senior Credit Facility	2
Line of Credit [Member] | Foreign Subsidiary [Member]
Line of Credit Facility [Line Items]
Short-term Debt	$ 0.1	$ 7.4
Financing Arrangements (Textual) [Abstract]
Maximum borrowing capacity under line of credit	224.7
Remaining Borrowing Capacity under Line of Credit Facility of Company's foreign subsidiaries	$ 219.4
Variable Rate Lines of Credit [Member]
Financing Arrangements (Textual) [Abstract]
Line of credit stated variable interest rate, Low Range	0.96%	0.51%
Line of Credit stated variable interest rate, High Range	5.89%	5.13%