SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for doubtful accounts
Valuation and Qualifying Accounts
Balance at beginning of period	$ 44.8	$ 33.6	$ 33.5
Charged to cost and expenses	1.5	8.5	1.2
Additions (Deductions)	(2.8)	2.7	(1.1)
Balance at end of period	43.5	44.8	33.6
Valuation allowance on deferred tax assets
Valuation and Qualifying Accounts
Balance at beginning of period	40.1	35.2	34.7
Charged to cost and expenses	6.3	3.8	0.2
Additions (Deductions)	(1.5)	1.1	0.3
Balance at end of period	$ 44.9	$ 40.1	$ 35.2