DEBT AND BANK CREDIT FACILITIES (Schedule Of Indebtedness) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 28, 2022
Debt Instrument [Line Items]
Finance Leases	$ 69.7	$ 70.5
Less: Debt Issuance Costs	(50.9)	(53.6)
Total	6,245.9	6,380.9
Less: Current Maturities	3.9	3.9
Long-Term Debt	6,242.0	6,377.0
Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	4,700.0	4,700.0
Senior Notes | Altra Notes
Debt Instrument [Line Items]
Long-term debt, gross	18.1	18.1
Line of Credit | Term Facility
Debt Instrument [Line Items]
Long-term debt, gross	993.5	1,053.5
Line of Credit | Land Term Facility
Debt Instrument [Line Items]
Long-term debt, gross	482.0	486.8	$ 486.8
Line of Credit | Multicurrency Revolving Facility
Debt Instrument [Line Items]
Long-term debt, gross	26.4	98.1
Other
Debt Instrument [Line Items]
Long-term debt, gross	$ 7.1	$ 7.5