Accounts Receivable Sales Agreements (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net cash received from receivables sold	$ 1,500.0	$ 1,600.0
Outstanding accounts receivable associated with retail finance joint ventures in Brazil and Australia	$ 67.5	$ 104.3	$ 67.5		$ 67.5
Other expense, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loss on sales of receivables			$ 6.1	$ 10.6	$ 18.5	$ 30.3