v3.25.4
Employee benefit plans - other balance sheet information (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
United States | Pension plans    
Defined benefit plan, additional information    
Accumulated benefit obligation $ 7.5 $ 119.6
Amounts recorded in balance sheet:    
Other assets 0.0 41.6
Other current liabilities (0.7) (0.7)
Other liabilities (6.8) (6.9)
Funded status (7.5) 34.0
Components of AOCI, excluding tax effects:    
Actuarial gain (loss) 0.4 (19.1)
Prior service gain 0.0 0.0
United States | Medical plans    
Defined benefit plan, additional information    
Accumulated benefit obligation 10.9 9.8
Amounts recorded in balance sheet:    
Other assets 0.0 0.0
Other current liabilities (0.9) (0.7)
Other liabilities (10.1) (9.1)
Funded status (11.0) (9.8)
Components of AOCI, excluding tax effects:    
Actuarial gain (loss) 7.5 9.3
Prior service gain 0.0 0.0
Non-U.S. | Pension plans    
Defined benefit plan, additional information    
Accumulated benefit obligation 182.9 176.4
Amounts recorded in balance sheet:    
Other assets 10.6 4.5
Other current liabilities (3.2) (2.8)
Other liabilities (72.5) (71.7)
Funded status (65.1) (70.0)
Components of AOCI, excluding tax effects:    
Actuarial gain (loss) 16.1 3.1
Prior service gain $ 0.6 $ 1.0