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DEBT AND BANK CREDIT FACILITIES - Narrative (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2025 USD ($) | Jun. 30, 2025 USD ($) | Mar. 28, 2022 USD ($) | May 31, 2024 USD ($) series | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Mar. 27, 2023 USD ($) | Jan. 24, 2023 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Weighted average discount rate related to finance leases |  |  |  |  | 6.90% | 5.20% | 6.90% | 5.20% |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 4,697,100,000 |  |  |  |  |  |  |
Extinguishment of debt |  |  |  | 4,697,100,000 |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 2,900,000 |  |  |  |  |  |  |
Number of debt series | series |  |  |  | 4 |  |  |  |  |  |  |
Fair value of debt |  |  |  |  | $ 4,906,400,000 |  | $ 4,906,400,000 |  | $ 4,795,200,000 |  |
Long-term debt |  |  |  |  | 4,700,000,000 |  | 4,700,000,000 |  | 4,700,000,000 |  |
Senior Notes | Senior Notes Due 2026 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 1,099,000,000 |  |  |  |  |  |  | $ 1,100,000,000
Debt instrument interest rate |  |  |  | 6.05% |  |  |  |  |  |  | 6.05%
Senior Notes | Senior Notes Due 2026 | Altra Merger Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument interest rate |  |  |  |  |  |  |  |  |  | 6.125% |
Long-term debt |  |  |  |  |  |  |  |  |  | $ 18,100,000 |
Senior Notes | Senior Notes Due 2028 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 1,249,400,000 |  |  |  |  |  |  | $ 1,250,000,000
Debt instrument interest rate |  |  |  | 6.05% |  |  |  |  |  |  | 6.05%
Senior Notes | Senior Notes Due 2030 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 1,099,400,000 |  |  |  |  |  |  | $ 1,100,000,000
Debt instrument interest rate |  |  |  | 6.30% |  |  |  |  |  |  | 6.30%
Senior Notes | Senior Notes Due 2033 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 1,249,300,000 |  |  |  |  |  |  | $ 1,250,000,000
Debt instrument interest rate |  |  |  | 6.40% |  |  |  |  |  |  | 6.40%
Line of Credit | Term Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | 0 |  | 0 |  | 665,000,000.0 |  |
Maximum borrowing capacity |  |  | $ 1,390,000,000 |  |  |  |  |  |  |  |
Amortization rate per annum |  |  | 5.00% |  |  |  |  |  |  |  |
Repayment on unsecured debt | $ 50,000,000.0 | $ 420,000,000.0 |  |  |  |  |  |  |  |  |
Line of Credit | Multicurrency Revolving Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | 0 |  | 0 |  | $ 40,000,000.0 |  |
Maximum borrowing capacity |  |  | $ 1,570,000,000 |  |  |  |  |  |  |  |
Available borrowing capacity |  |  |  |  | 1,570,000,000 |  | 1,570,000,000 |  |  |  |
Average daily balance |  |  |  |  | 72,800,000 | $ 70,800,000 | $ 84,700,000 | $ 78,900,000 |  |  |
Non-use fee, percentage |  |  |  |  |  |  | 0.25% |  |  |  |
Letter of Credit | Multicurrency Revolving Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term line of credit |  |  |  |  | $ 0 |  | $ 0 |  |  |  |

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