FAIR VALUE MEASUREMENTS - Carrying Amounts and Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current portion of long-term debt	$ 0.0	$ 999.7
Long-term debt, net of current maturities	3,646.2	2,251.6
Quoted Prices in Active Market (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current portion of long-term debt	0.0	999.7
Current portion of long-term debt, fair value	0.0	1,000.0
Long-term debt, net of current maturities	3,646.2	2,251.6
Long-term debt, net of current maturities fair value	$ 3,539.4	$ 2,078.1