REGULATORY MATTERS - Ohio (Details) - PUCO meter in Thousands, $ in Thousands	Apr. 05, 2023 USD ($)	Jul. 15, 2022 USD ($) circuit meter	Jun. 01, 2016 USD ($)	Sep. 13, 2021 requirement	Aug. 06, 2021 USD ($)
The Ohio Companies | Subsequent Event
Regulatory Matters [Line Items]
Commitment to spend	$ 52,000
Minimum | The Ohio Companies | Subsequent Event
Regulatory Matters [Line Items]
Approved period of rate plan	8 years
Amount of revenue increase	$ 15,000
Maximum | The Ohio Companies | Subsequent Event
Regulatory Matters [Line Items]
Amount of revenue increase	$ 21,000
OHIO
Regulatory Matters [Line Items]
Proposed goal to reduce CO2 pollution (percent)			90.00%
OHIO | Energy Conservation, Economic Development and Job Retention
Regulatory Matters [Line Items]
Contribution amount			$ 51,000
OHIO | Delivery Capital Recovery Rider
Regulatory Matters [Line Items]
Annual revenue cap for rider for years three through six			20,000
Annual revenue cap for rider for years six through eight			$ 15,000
OHIO | Rider DCR Audit Report | The Ohio Companies
Regulatory Matters [Line Items]
Refund to customer of pole attachment sates					$ 15
Number of requirements with minor non-compliance | requirement				8
Number of requirements | requirement				23
OHIO | Phase Two of Grid Modernization Plan | The Ohio Companies
Regulatory Matters [Line Items]
Numbers of additional meters to be installed | meter		700
Number of circuits additional automation equipment to be installed on | circuit		240
Number of circuits additional voltage regulating equipment to be installed on | circuit		220
Period of grid modernization plan		4 years
Requested amount of capital investments		$ 626,000
Requested amount of operations and maintenance expenses		$ 144,000