FAIR VALUE MEASUREMENTS - Schedule of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Carrying Amount | Publicly traded debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 8,980.0	$ 9,475.8
Carrying Amount | Non-publicly traded debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	0.5	0.9
Fair Value | Publicly traded debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	7,850.2	8,615.1
Fair Value | Non-publicly traded debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 0.5	$ 0.8