Leases - Components of Lease Expense and Other Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease expense		$ 31.1	$ 34.9	$ 64.0	$ 70.4
Short-term lease expense		1.4	1.6	2.6	3.1
Other lease expense	[1]	4.3	4.1	9.0	9.0
Total lease expense		$ 36.8	$ 40.6	75.6	82.5
Supplemental Cash Flow Information
Cash paid for amounts included in the measurement of operating lease liabilities				63.7	69.6
Operating ROU assets obtained in exchange for lease obligations				$ 13.5	$ 15.2

[1] Other lease expense includes variable lease expense and sublease income.