DEBT AND BANK CREDIT FACILITIES - Schedule of Indebtedness (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Finance Leases	$ 92.9	$ 70.1
Less: Debt Issuance Costs	(32.9)	(42.1)
Total	4,785.4	5,457.7
Less: Current Maturities	5.4	5.0
Long-Term Debt	4,780.0	5,452.7
Senior Notes
Debt Instrument [Line Items]
Long-term debt	4,700.0	4,700.0
Senior Notes \| Altra Notes
Debt Instrument [Line Items]
Long-term debt	18.1	18.1
Line of Credit \| Term Facility
Debt Instrument [Line Items]
Long-term debt	0.0	665.0
Line of Credit \| Multicurrency Revolving Facility
Debt Instrument [Line Items]
Long-term debt	0.0	40.0
Other
Debt Instrument [Line Items]
Long-term debt	$ 7.3	$ 6.6

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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