Receivables - Schedule of Receivables (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Receivables [Abstract]
Trade receivables - U.S. government	$ 102.4	$ 140.7
Trade receivables - other	848.7	797.5
Finance receivables	7.5	8.0
Other receivables	43.2	40.0
Receivables, gross	1,001.8	986.2
Less allowance for doubtful accounts	(5.9)	(4.2)	$ (5.7)	$ (5.8)
Receivables, net	$ 995.9	$ 982.0