REGULATORY MATTERS (2023 Rate Order) (Details) - Arizona Corporation Commission $ in Millions |
Sep. 01, 2023
USD ($)
|
|---|---|
| Public Utilities, General Disclosures [Line Items] | |
| Base rate increase (decrease) | $ 100 |
| Original cost rate base (percentage) | 6.93% |
| Original cost rate base | $ 3,600 |
| Approved return on equity (percentage) | 9.55% |
| Average original cost of debt (percentage) | 3.82% |
| Capital structure equity percentage | 54.00% |
| Capital structure debt percentage | 46.00% |