SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021		Dec. 31, 2020		Jan. 01, 2020
Accounting Standards Update 2016-13 | Trade receivables
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Accounts Receivable, after Allowance for Credit Loss, Current							$ 2.0
Trade receivables allowance for credit losses
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of  Period		$ 38.1	$ 40.2	[1]	$ 57.4	[1]
Additions, Charged to Costs and Expenses		1.3	17.0		38.0	[1]
Additions, Charged to Other Accounts	[2]	9.1	(10.8)		1.3	[1]
Deductions and Adjustments	[3]	(14.4)	(8.3)		(56.5)	[1]
Balance at End of Period		34.1	38.1		40.2	[1]
Valuation allowance for deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of  Period		935.5	815.1		729.1
Additions, Charged to Costs and Expenses		79.4	129.7		104.4
Additions, Charged to Other Accounts	[2]	(15.8)	(12.0)		(11.3)
Deductions and Adjustments	[3]	0.0	2.7		(7.1)
Balance at End of Period		$ 999.1	$ 935.5		$ 815.1

[1] On January 1, 2020, we adopted ASU 2016-13, resulting in a $2.0 million increase to our trade receivables allowance for credit losses.

[2] Additions charged to other accounts” includes translation adjustments.

[3] “Deductions and adjustments” includes write-offs, net of recoveries, increases in allowances offset by increases to deferred tax assets, and reductions in the allowances credited to expense.