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ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Activity for Each Component of Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax    
Beginning balance $ 6,650.0  
Other comprehensive (loss) income before reclassifications 27.5 $ 20.5
Amounts reclassified from accumulated other comprehensive loss (6.4) (27.5)
Deferred income tax expense (benefit) (11.6) 6.5
Ending balance 7,117.9  
Accumulated Other Comprehensive Loss    
AOCI Attributable to Parent, Net of Tax    
Beginning balance (242.8) (254.9)
Ending balance (233.3) (255.4)
Foreign Currency Translation Adjustments    
AOCI Attributable to Parent, Net of Tax    
Beginning balance (214.5) (218.8)
Other comprehensive (loss) income before reclassifications (23.3) 4.9
Amounts reclassified from accumulated other comprehensive loss (1.7) (1.7)
Deferred income tax expense (benefit) (1.1) 0.6
Ending balance (240.6) (215.0)
Unrealized Gain on Hedges    
AOCI Attributable to Parent, Net of Tax    
Beginning balance 0.7 23.8
Other comprehensive (loss) income before reclassifications 43.4 6.7
Amounts reclassified from accumulated other comprehensive loss (7.2) (29.8)
Deferred income tax expense (benefit) (9.3) 5.9
Ending balance 27.6 6.6
Unrealized Loss on Available-for-sale Investments    
AOCI Attributable to Parent, Net of Tax    
Beginning balance (24.8) (65.6)
Other comprehensive (loss) income before reclassifications 7.0 9.0
Amounts reclassified from accumulated other comprehensive loss 2.5 4.0
Deferred income tax expense (benefit) (1.1) 0.0
Ending balance (16.4) (52.6)
Unrealized Pension Credits (Costs)    
AOCI Attributable to Parent, Net of Tax    
Beginning balance (4.2) 5.7
Other comprehensive (loss) income before reclassifications 0.4 (0.1)
Amounts reclassified from accumulated other comprehensive loss 0.0 0.0
Deferred income tax expense (benefit) (0.1) 0.0
Ending balance $ (3.9) $ 5.6