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PENSION AND NON-PENSION POST-EMPLOYMENT BENEFIT PLANS - Schedule of Benefit Plan Balance (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]    
Pension and non-pension post-employment benefit obligations $ (89.5) $ (83.8)
Current other post-employment benefit obligations (5.0) (4.0)
Non-current net pension assets 9.7 10.0
Defined benefit plan, asset (liability) recognized on consolidated balance sheets (84.8) (77.8)
Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Pension and non-pension post-employment benefit obligations (19.6) (17.6)
Non-current net pension assets 9.6 10.0
Defined benefit plan, asset (liability) recognized on consolidated balance sheets (10.0) (7.6)
Other Benefit Plans    
Defined Benefit Plan Disclosure [Line Items]    
Pension and non-pension post-employment benefit obligations (69.9) (66.2)
Current other post-employment benefit obligations (5.0) (4.0)
Non-current net pension assets 0.1  
Defined benefit plan, asset (liability) recognized on consolidated balance sheets $ (74.8) $ (70.2)