NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) customer in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2023
mi²
customer
| |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Number of retail customers | customer | 447 |
| Area in which subsidiary generates transmits and distributes electricity to retail electric customers (sq miles) | mi² | 1,155 |
| Cloud Computing | Minimum | |
| Regulatory Assets [Line Items] | |
| Amortization period | 3 years |
| Cloud Computing | Maximum | |
| Regulatory Assets [Line Items] | |
| Amortization period | 5 years |