ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Affected Line on Consolidated Condensed Statements of Operations
Other non-operating income, net	$ 2.7			$ 27.9			$ 4.0	$ 35.6
Cost of sales	(345.2)			(262.9)			(991.2)	(825.3)
Interest income, net	38.6			24.3			112.5	56.3
Provision for income taxes	(56.1)			(40.7)			(190.7)	(107.0)
Net income	290.3	$ 331.5	$ 356.4	3,069.4	$ 365.0	$ 351.0	978.2	3,785.4
Amount Reclassified from Accumulated Other Comprehensive Loss | Foreign currency translation adjustments
Affected Line on Consolidated Condensed Statements of Operations
Other non-operating income, net	1.6			1.6			4.8	5.1
Provision for income taxes	(0.4)			(0.5)			(1.2)	(1.3)
Net income	1.2			1.1			3.6	3.8
Amount Reclassified from Accumulated Other Comprehensive Loss | (Loss) gain on hedges
Affected Line on Consolidated Condensed Statements of Operations
Other non-operating income, net	0.0			0.0			0.0	4.8
Cost of sales	(8.0)			17.0			13.1	31.9
Total before tax	(8.0)			17.0			13.1	36.7
Provision for income taxes	2.0			(4.2)			(3.5)	(8.9)
Net income	(6.0)			12.8			9.6	27.8
Amount Reclassified from Accumulated Other Comprehensive Loss | Gain (loss) on available-for-sale investments
Affected Line on Consolidated Condensed Statements of Operations
Interest income, net	21.9			0.8			57.9	(2.7)
Provision for income taxes	(5.4)			(0.2)			(14.2)	0.7
Net income	$ 16.5			$ 0.6			$ 43.7	$ (2.0)