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SHORT-TERM AND LONG-TERM DEBT - Schedule of Short-Term and Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Principal
Short-Term Debt	$ 94.2	$ 94.7
Long-Term Debt	1,841.9	1,713.3
Total Debt	1,936.1	1,808.0
Unamortized Debt Issuance Costs
Short-Term Debt	0.0	0.0
Long-Term Debt	(9.1)	(8.6)
Total Debt	(9.1)	(8.6)
Total
Short-Term Debt	94.2	94.7
Long-Term Debt	1,832.8	1,704.7
Total Debt	$ 1,927.0	$ 1,799.4

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