Accounts Receivable Sales Agreements (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net cash received from receivables sold			$ 1,100.0		$ 1,200.0
Outstanding accounts receivable associated with retail finance joint ventures in Brazil and Australia	$ 19.7		19.7		$ 43.3
Other Expenses, Net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loss on sales of receivables	$ 4.0	$ 4.8	$ 13.4	$ 19.0
Corporate Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Joint venture ownership percentage	49.00%		49.00%		49.00%