v3.24.2
Financial instruments and fair value measurements - Schedule of gross amounts and fair values of debt instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Apr. 02, 2024
Apr. 01, 2024
Dec. 31, 2023
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount $ 5,148.3     $ 5,580.0
Fair value 4,981.1     5,429.9
Receivables facility        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 233.3     221.0
Fair value 233.3     221.0
Senior secured credit facilities: | Euro term loans B-4        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 264.5     630.1
Fair value 265.8     630.9
Senior secured credit facilities: | Euro term loans B-5        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 337.8     350.4
Fair value 339.5     351.1
Senior secured credit facilities: | U.S. dollar term loans B-5        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 0.0     787.6
Fair value 0.0     791.0
Senior secured credit facilities: | U.S. dollar term loans B-6        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 760.5 $ 772.4 $ 772.4 0.0
Fair value 765.7     0.0
Notes | 2.625% secured notes        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 696.5     718.7
Fair value 682.4     705.3
Notes | 3.875% unsecured notes        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 800.0     800.0
Fair value 724.0     727.3
Notes | 3.875% unsecured notes        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 428.6     442.3
Fair value 418.6     434.3
Notes | 4.625 % unsecured notes        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 1,550.0     1,550.0
Fair value 1,474.7     1,489.1
Finance lease liabilities        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 67.0     68.3
Fair value 67.0     68.3
Other Debt        
Estimated Fair Value Of Financial Instruments [Line Items]        
Gross amount 10.1     11.6
Fair value $ 10.1     $ 11.6