Sale of Receivables (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Sale of Receivables [Abstract]
Sale of receivables to financial institutions	$ 695.1	$ 719.0
Charge related to sale of receivables	$ 12.2	$ 22.0	$ 24.4