Debt (Details) - USD ($) $ in Millions	Sep. 30, 2023	Aug. 12, 2023	Dec. 31, 2022
Notes payable – current
Notes and Loans Payable, Current	$ 5.1		$ 27.0
Other Long-term Debt, Current	2.1		1.7
Debt Issuance Costs, Current, Net	0.0		3.0
Notes Payable, Current	5.1	$ 4.9	24.0
Long-term debt
Other Long-term Debt, Noncurrent	4.3		6.3
Long-term debt excluding debt issuance costs	1,254.3		2,724.8
Debt Issuance Costs, Noncurrent, Net	1.2		139.0
Long-term Debt and Capital Lease Obligations	1,253.1	$ 1,253.7	2,585.8
Senior Notes Due 2024 [Member]
Long-term debt
Term Loan Facility	0.0		72.1
Senior Notes Due 2025 [Member]
Long-term debt
Term Loan Facility	0.0		2.7
Senior Notes Due 2025 EURO [Member]
Long-term debt
Term Loan Facility	0.0		4.7
Asset Backed Loan
Long-term debt
Revolving credit facility	0.0		182.0
Extended Term B USD
Long-term debt
Term Loan Facility	0.0		529.5
Extended Term B EUR
Long-term debt
Term Loan Facility	0.0		95.5
2L Notes - 2026
Long-term debt
Term Loan Facility	0.0		333.6
Exchanged Senior Secured Notes Due 2025 USD
Long-term debt
Term Loan Facility	0.0		718.1
Exchanged Senior Secured Notes Due 2025 EUR
Long-term debt
Senior Notes, Noncurrent	0.0		379.7
Superpriority Term Loans Due 2025
Long-term debt
Term Loan Facility	0.0		400.6
Exit Facility
Long-term debt
Notes Payable, Noncurrent	1,250.0		0.0
International Short-Term Uncommitted Line of Credit [Member]
Notes payable – current
Uncommitted Lines Of Credit	3.0		0.9
Term Loan B USD [Member]
Notes payable – current
Notes and Loans Payable, Current	0.0		12.9
Term Loan B EUR [Member]
Notes payable – current
Notes and Loans Payable, Current	0.0		5.1
Extended Term B USD
Notes payable – current
Term Loan Facility	0.0		5.3
Extended Term B EUR
Notes payable – current
Term Loan Facility	$ 0.0		$ 1.1