FINANCING ACTIVITIES - Schedule of Customer Accounts Receivable Managed Portfolio (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Debt Disclosure [Abstract] | ||
| Accounts Receivable Retained Interest and Pledged as Collateral Less Uncollectible Accounts | $ 1,233.9 | $ 1,117.0 |
| Short-term – Securitized Debt of Receivables | 900.0 | 900.0 |
| Delinquent Securitized Accounts Receivable | 58.5 | 56.2 |
| Bad Debt Reserves Related to Securitization | 45.1 | 44.5 |
| Unbilled Receivables Related to Securitization | $ 390.6 | $ 335.5 |