OTHER CONTINGENCIES AND COMMITMENTS - 2022 Cost of Capital Application (Details)	Dec. 31, 2022	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Annual cost of capital adjustment, indicator	4.50%
Annual cost of capital adjustment, basis point maximum	100
Proposed cost of long-term debt	4.14%
Proposed return on preferred stock	5.52%
Proposed return on equity	11.00%
Annual cost of capital adjustment, indicator, basis point		117