ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Activity for Each Component of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
AOCI Attributable to Parent, Net of Tax
Beginning balance	$ 9,998.4
Other comprehensive income (loss) before reclassifications	6.9	$ 27.5
Amounts reclassified from accumulated other comprehensive loss	(28.9)	(6.4)
Deferred income tax expense (benefit)	12.0	(11.6)
Ending balance	10,128.7
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax
Beginning balance	(244.5)	(242.8)
Ending balance	(254.5)	(233.3)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax
Beginning balance	(274.1)	(214.5)
Other comprehensive income (loss) before reclassifications	16.1	(23.3)
Amounts reclassified from accumulated other comprehensive loss	(1.7)	(1.7)
Deferred income tax expense (benefit)	2.0	(1.1)
Ending balance	(257.7)	(240.6)
Unrealized Gain on Hedges
AOCI Attributable to Parent, Net of Tax
Beginning balance	37.7	0.7
Other comprehensive income (loss) before reclassifications	(27.6)	43.4
Amounts reclassified from accumulated other comprehensive loss	(10.2)	(7.2)
Deferred income tax expense (benefit)	10.2	(9.3)
Ending balance	10.1	27.6
Unrealized Loss on Available-for-sale Investments
AOCI Attributable to Parent, Net of Tax
Beginning balance	(4.0)	(24.8)
Other comprehensive income (loss) before reclassifications	18.3	7.0
Amounts reclassified from accumulated other comprehensive loss	(17.0)	2.5
Deferred income tax expense (benefit)	(0.2)	(1.1)
Ending balance	(2.9)	(16.4)
Unrealized Pension Costs
AOCI Attributable to Parent, Net of Tax
Beginning balance	(4.1)	(4.2)
Other comprehensive income (loss) before reclassifications	0.1	0.4
Amounts reclassified from accumulated other comprehensive loss	0.0	0.0
Deferred income tax expense (benefit)	0.0	(0.1)
Ending balance	$ (4.0)	$ (3.9)