CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Millions		3 Months Ended		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales				$ 1,980.4	$ 2,078.7
Cost of sales				835.7	849.1
Gross profit				1,144.7	1,229.6
Selling, general and administrative expenses				1,033.1	1,099.1
Acquisition, integration and divestiture costs				0.9	2.3
Restructuring charges and other, net				6.5	26.1
Impairment charges		$ 0.0	$ 0.0	24.3	0.0
Gain on divested assets				0.0	(1.1)
Operating income				79.9	103.2
Other expenses:
Interest expense, net				252.9	247.7
Amortization of debt issuance costs				20.9	39.6
Foreign currency losses, net				25.1	10.6
Miscellaneous, net				7.2	6.0
Reorganization items, net				416.0	0.0
Other expense (income), net				722.1	303.9
(Loss) income from operations before income taxes				(642.2)	(200.7)
Provision for income taxes				31.7	6.2
Net (loss) income				(673.9)	(206.9)
Other comprehensive income (loss):
Foreign currency translation adjustments				(1.8)	(8.7)
Amortization of pension related costs, net of tax	[1],[2]			11.5	13.8
Pension re-measurement, net of tax	[3]			5.6	38.1
Pension settlement and curtailment, net of tax	[1]			(0.5)	0.0
Other comprehensive (loss) income, net	[4]			14.8	43.2
Total comprehensive (loss) income				$ (659.1)	$ (163.7)
Basic loss per common share (in dollars per share)				$ (12.28)	$ (3.84)
Diluted loss per common share (in dollars per share)				$ (12.28)	$ (3.84)
Weighted average number of common shares outstanding:
Basic (in shares)				54,892,272	53,934,179
Diluted (in shares)				54,892,272	53,934,179

[1] Net of tax expense of nil for the years ended December 31, 2022 and 2021.

[2] This amount is included in the computation of net periodic benefit costs (income). See Note 11, "Pension and Post-Retirement Benefits," for additional information regarding net periodic benefit costs (income).

[3] Net of tax expense of $0.3 million for each of the years ended December 31, 2022 and 2021.

[4] See Note 14, "Accumulated Other Comprehensive Loss," regarding the changes in the accumulated balances for each component of other comprehensive loss during the years ended December 31, 2022 and 2021, respectively.