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SHORT-TERM AND LONG-TERM DEBT - Schedule of Short-Term and Long-Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Principal
Short-Term Debt	$ 63.6	$ 94.7
Long-Term Debt	1,940.6	1,713.3
Total Debt	2,004.2	1,808.0
Unamortized Debt Issuance Costs
Short-Term Debt	0.0	0.0
Long-Term Debt	(8.8)	(8.6)
Total Debt	(8.8)	(8.6)
Total
Short-Term Debt	63.6	94.7
Long-Term Debt	1,931.8	1,704.7
Total Debt	$ 1,995.4	$ 1,799.4

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