Accounts Receivable Sales Agreements (Details) - USD ($) $ in Millions			3 Months Ended		6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 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	$ 77.3	$ 104.3	$ 77.3		$ 77.3
Other expense, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loss on sales of receivables			$ 4.3	$ 11.0	$ 12.4	$ 19.7