STOCK-BASED COMPENSATION (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) plan	Jun. 30, 2022 USD ($)
STOCK-BASED COMPENSATION
Stock-based compensation plans | plan			2
Compensation expense on share-based plans	$ 18.6	$ 16.3	$ 34.6	$ 32.6
Excess tax benefit realized for tax deductions from non-qualified stock option exercises and disqualifying dispositions of incentive stock options	$ 4.1	$ 2.2	$ 30.0	$ 2.7