v3.26.3
DEBT AND BANK CREDIT FACILITIES - Narrative (Details)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 25, 2026
USD ($)
Jan. 24, 2023
USD ($)
May 31, 2024
USD ($)
series
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Feb. 12, 2026
USD ($)
Nov. 21, 2025
USD ($)
Mar. 27, 2023
USD ($)
Mar. 28, 2022
USD ($)
Debt Instrument [Line Items]                        
Weighted average discount rate related to finance leases       9.00% 6.90% 9.00% 6.90%          
Senior Notes                        
Debt Instrument [Line Items]                        
Principal amount     $ 4,697,100,000                  
Possible increase in interest rate   2.00%                    
Extinguishment of debt     4,697,100,000                  
Long-term debt     $ 2,900,000                  
Number of debt series | series     4                  
Fair value of debt       $ 3,634,800,000   $ 3,634,800,000   $ 4,903,400,000        
Long-term debt       3,600,000,000   3,600,000,000   4,700,000,000        
Line of Credit | Term Facility                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity                       $ 1,390,000,000
Repayments of long-term debt               665,000,000.0        
Line of Credit | Multicurrency Revolving Facility                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity                       $ 1,570,000,000
Average daily balance         $ 72,800,000   $ 84,700,000          
Senior Notes Due 2026 | Senior Notes                        
Debt Instrument [Line Items]                        
Principal amount   $ 1,100,000,000 $ 1,099,000,000                  
Debt instrument interest rate   6.05% 6.05%                  
Senior Notes Due 2026 | Senior Notes | Altra Merger Agreement                        
Debt Instrument [Line Items]                        
Debt instrument interest rate                     6.125%  
Long-term debt                     $ 18,100,000  
Senior Notes Due 2028 | Senior Notes                        
Debt Instrument [Line Items]                        
Principal amount   $ 1,250,000,000 $ 1,249,400,000                  
Debt instrument interest rate   6.05% 6.05%                  
Senior Notes Due 2030 | Senior Notes                        
Debt Instrument [Line Items]                        
Principal amount   $ 1,100,000,000 $ 1,099,400,000                  
Debt instrument interest rate   6.30% 6.30%                  
Senior Notes Due 2033 | Senior Notes                        
Debt Instrument [Line Items]                        
Principal amount   $ 1,250,000,000 $ 1,249,300,000                  
Debt instrument interest rate   6.40% 6.40%                  
Credit Agreement, 2025 | Line of Credit | Unsecured Debt                        
Debt Instrument [Line Items]                        
Repayments of long-term debt $ 350,000,000.0                      
2025 Term Facility | Line of Credit | Unsecured Debt                        
Debt Instrument [Line Items]                        
Principal amount                 $ 850,000,000.0      
Long-term debt       500,000,000.0   500,000,000.0   0        
Maximum borrowing capacity                   $ 850,000,000.0    
2025 Revolving Facility | Line of Credit | Revolving Credit Facility                        
Debt Instrument [Line Items]                        
Long-term debt       268,800,000   268,800,000   $ 0        
Maximum borrowing capacity       1,231,200,000   1,231,200,000       $ 1,500,000,000    
Average daily balance       125,600,000   $ 166,400,000            
Non-use fee, percentage           0.15%            
2025 Revolving Facility | Line of Credit | Standby Letters of Credit                        
Debt Instrument [Line Items]                        
Principal amount       $ 0   $ 0