v3.26.3
FAIR VALUE MEASUREMENTS AND DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Noncontrolling interest put $ 16.1 $ 16.9
Cross currency swaps 241.0 274.0
Interest rate swaps 71.9 52.7
Cash surrender value of life insurance policies 108.5 99.6
Deferred compensation asset 66.0 53.1
Deferred compensation liability 165.6 150.5
Fair market value of senior notes 4,252.0 4,963.6
Long-term debt 5,250.7 5,084.6
Derivative, Interest Rate Swap $ 500.0  
Three month SOFR 1.33%  
Contingent Consideration Liabilities    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value $ 124.0 50.0
2029 Maturing Swap Agreements    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Derivative, Notional Amount 300.0  
2034 Maturing Swap Agreements    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Derivative, Notional Amount 600.0  
2031 Swap Agreements    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Derivative, Notional Amount 300.0  
Swap Agreements    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Derivative, Notional Amount $ 1,200.0  
2.70% senior notes due 2031    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Subordinated Borrowing, Interest Rate 2.70%  
Level 1 [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Noncontrolling interest put $ 0.0 0.0
Cross currency swaps 0.0 0.0
Interest rate swaps 0.0 0.0
Cash surrender value of life insurance policies 0.0 0.0
Deferred compensation asset 0.0 0.0
Deferred compensation liability 0.0 0.0
Level 1 [Member] | Contingent Consideration Liabilities    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 0.0 0.0
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Noncontrolling interest put 16.1 16.9
Cross currency swaps 241.0 274.0
Interest rate swaps 71.9 52.7
Cash surrender value of life insurance policies 108.5 99.6
Deferred compensation asset 66.0 53.1
Deferred compensation liability 165.6 150.5
Fair Value, Inputs, Level 2 [Member] | Contingent Consideration Liabilities    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 0.0 0.0
Level 3 [Member]    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Noncontrolling interest put 0.0 0.0
Cross currency swaps 0.0 0.0
Interest rate swaps 0.0 0.0
Cash surrender value of life insurance policies 0.0 0.0
Deferred compensation asset 0.0 0.0
Deferred compensation liability 0.0 0.0
Level 3 [Member] | Contingent Consideration Liabilities    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Additions from business acquisitions, excluding measurement period adjustments, and purchase of intangible assets 120.8  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements (32.9)  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 124.0 $ 50.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Other Adjustments (13.9)  
Level 3 [Member] | Accrued Liabilities | Contingent Consideration Liabilities    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value 45.2  
Level 3 [Member] | Other liabilities | Contingent Consideration Liabilities    
Fair Value, Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items]    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value $ 78.8