OTHER COMPREHENSIVE INCOME (Amounts Reclassified from Accumulated Other Comprehensive Income to Earnings) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ (35.9)	$ (33.1)
Other nonoperating expense	1.5	5.9
Benefit from income taxes	18.7	60.6
Total	91.8	160.6
Reclassification From AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total	1.1	1.6
Amortization of Interest Rate Hedges Losses [Member] | Reclassification From AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	0.5	0.5
Benefit from income taxes	(0.1)	(0.1)
Total	0.4	0.4
Amortization of Pension and Postretirement Plan Actuarial Loss and Prior Service Cost [Member] | Reclassification From AOCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other nonoperating expense	1.0	1.7
Benefit from income taxes	(0.3)	(0.5)
Total	$ 0.7	$ 1.2