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Intangible Assets - Rollforward (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]  
Gross $ 5,944.1
Accumulated Amortization (2,268.6)
Net 3,675.5
Gross 6,235.1
Accumulated Amortization (2,719.8)
Net 3,515.3
Developed internal use software  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Assets, Period Increase (Decrease) 234.9
Finite-Lived Intangible Assets, Accumulated Amortization, Increase (Decrease) 0.0
Finite-Lived Intangible Assets, Increase (Decrease), Net 234.9
Amortization  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Assets, Period Increase (Decrease) 0.0
Finite-Lived Intangible Assets, Accumulated Amortization, Increase (Decrease) (427.8)
Finite-Lived Intangible Assets, Increase (Decrease), Net (427.8)
Reclassified to assets-held-for-sale  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Assets, Period Increase (Decrease) (1.1)
Finite-Lived Intangible Assets, Accumulated Amortization, Increase (Decrease) 0.7
Finite-Lived Intangible Assets, Increase (Decrease), Net (0.4)
Disposals and retirements  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Assets, Period Increase (Decrease) (0.3)
Finite-Lived Intangible Assets, Accumulated Amortization, Increase (Decrease) 0.0
Finite-Lived Intangible Assets, Increase (Decrease), Net (0.3)
Foreign exchange rate adjustment  
Acquired Finite-Lived Intangible Assets [Line Items]  
Finite-Lived Intangible Assets, Period Increase (Decrease) 57.5
Finite-Lived Intangible Assets, Accumulated Amortization, Increase (Decrease) (24.2)
Finite-Lived Intangible Assets, Increase (Decrease), Net $ 33.3