FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2022

FAIR VALUE MEASUREMENTS [Abstract]

Fair Value Measurement on Recurring Basis

	Level 1 Fair Value
	September 30	December 31	September 30
in millions	2022	2021	2021
Fair Value Recurring
Rabbi Trust
Mutual funds	$          24.9	$          34.7	$          30.5
Total	$          24.9	$          34.7	$          30.5

	Level 2 Fair Value
	September 30	December 31	September 30
in millions	2022	2021	2021
Fair Value Recurring
Rabbi Trust
Money market mutual fund	$            1.6	$            0.6	$            1.3
Total	$            1.6	$            0.6	$            1.3