ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Current Target Asset Allocations (Details)	Dec. 31, 2024
Equity | Pension Plans
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Target	35.00%
Equity | OPEB
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Target	67.00%
Fixed Income | Pension Plans
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Target	49.00%
Fixed Income | OPEB
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Target	32.00%
Other Investments | Pension Plans
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Target	15.00%
Cash and Cash Equivalents | Pension Plans
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Target	1.00%
Cash and Cash Equivalents | OPEB
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Target	1.00%