Operating Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflow from operating leases	$ 112.4	$ 115.8	$ 117.2
Leased assets obtained in exchange for new operating lease liabilities	$ 103.6	$ 99.2	$ 116.1