ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME, NET (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
AOCI Rollforward
Beginning balance	$ 4,279.6	$ 3,985.0	$ 3,465.3
Other comprehensive (loss) income	78.5	(39.0)	21.6
Ending balance	5,138.3	4,279.6	3,985.0
Accumulated other comprehensive (loss) income, net
AOCI Rollforward
Beginning balance	(48.4)	(9.4)	(31.0)
Other comprehensive (loss) income	78.5	(39.0)	21.6
Ending balance	30.1	(48.4)	(9.4)
Foreign Currency Translation Adjustment
AOCI Rollforward
Beginning balance	(48.6)	(5.6)
Other comprehensive (loss) income	78.3	(43.0)
Ending balance	29.7	(48.6)	(5.6)
Available-for-sale Financial Investments
AOCI Rollforward
Beginning balance	0.0	(3.7)
Other comprehensive (loss) income	0.0	3.7
Ending balance	0.0	0.0	(3.7)
Post-Retirement Benefits, Net
AOCI Rollforward
Beginning balance	0.2	(0.1)
Other comprehensive (loss) income	0.2	0.3
Ending balance	$ 0.4	$ 0.2	$ (0.1)