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Business Acquisitions (Details) - USD ($)
$ in Millions
6 Months Ended
Feb. 26, 2024
Jun. 30, 2024
Dec. 31, 2023
Business Acquisition [Line Items]      
Goodwill   $ 18,313.1 $ 17,118.8
Genesis Ultimate Holding Co      
Business Acquisition [Line Items]      
Aggregate purchase price $ 1,860.0    
Federal tax attributes $ 110.0    
Tax benefit utilization period (in years) 13 years    
Goodwill   1,208.2  
Other identifiable intangibles   762.0  
Genesis Ultimate Holding Co | Trade names      
Business Acquisition [Line Items]      
Intangible assets acquired, not subject to amortization   39.0  
Genesis Ultimate Holding Co | Customer related intangibles      
Business Acquisition [Line Items]      
Other identifiable intangibles   $ 708.0  
Weighted average useful life of finite-lived intangible assets (in years)   20 years  
Genesis Ultimate Holding Co | Technology      
Business Acquisition [Line Items]      
Other identifiable intangibles   $ 54.0  
Weighted average useful life of finite-lived intangible assets (in years)   5 years