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PENSION AND POSTRETIREMENT PLANS (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Other Pension Plan Information          
Defined benefit plan, tax status extensible enumeration       Non-qualified plan  
U.S. Pension. | Pension          
Net periodic benefit costs          
Service cost   $ 11.7 $ 11.6 $ 35.1 $ 34.8
Interest cost on benefit obligation   23.0 21.8 68.8 65.4
Expected return on plan assets   (37.6) (37.7) (112.8) (113.1)
Recognition of net actuarial loss (gain)   2.2 1.5 6.4 4.5
Amortization of prior service benefit   (1.1) (1.1) (3.3) (3.3)
Curtailments and settlements         0.4
Total expense (benefit)   (1.8) (3.9) (5.8) (11.3)
U.S. Pension. | Pension | Qualified plan          
Other Pension Plan Information          
Contributions to plan $ 25.0        
U.S. Pension. | Pension | Non-qualified plan          
Other Pension Plan Information          
Contributions to plan       5.0  
Contributions anticipated to be made during the remainder of 2025 4.0 4.0   4.0  
U.S. Pension. | U.S. Postretirement Benefits          
Net periodic benefit costs          
Service cost   0.1 0.1 0.3 0.3
Interest cost on benefit obligation   1.3 1.3 3.9 3.9
Recognition of net actuarial loss (gain)   (0.9) (0.8) (2.7) (2.4)
Total expense (benefit)   0.5 0.6 1.5 1.8
Other Pension Plan Information          
Contributions to plan       7.0  
Contributions anticipated to be made during the remainder of 2025 3.0 3.0   3.0  
International Pension | Pension          
Net periodic benefit costs          
Service cost   5.0 4.7 14.4 14.5
Interest cost on benefit obligation   11.6 12.5 33.6 37.1
Expected return on plan assets   (13.6) (12.5) (39.0) (37.5)
Recognition of net actuarial loss (gain)   2.4 2.4 6.6 7.4
Amortization of prior service benefit   (0.1) (0.3) (0.3) (0.5)
Total expense (benefit)   5.3 $ 6.8 15.3 $ 21.0
Other Pension Plan Information          
Contributions to plan       29.0  
Contributions anticipated to be made during the remainder of 2025 $ 12.0 $ 12.0   $ 12.0