REGULATORY MATTERS - Maryland (Details) - Maryland - PE $ in Millions							9 Months Ended
	Aug. 15, 2024 USD ($)	Jul. 01, 2024 USD ($)	Mar. 21, 2024	Dec. 29, 2023 USD ($)	Oct. 19, 2023	Aug. 01, 2023 USD ($) scenario	Sep. 30, 2024
Regulatory Matters [Line Items]
Incremental energy savings goal per year (percent)					0.20%
Incremental energy savings goal thereafter (percent)					2.00%
Per Year 2022 Through 2024
Regulatory Matters [Line Items]
Incremental energy savings goal thereafter (percent)			2.00%
Per Year 2025
Regulatory Matters [Line Items]
Incremental energy savings goal thereafter (percent)			2.25%
Per Year 2027
Regulatory Matters [Line Items]
Incremental energy savings goal thereafter (percent)			2.50%
2024-2026 EmPOWER Program Cycle
Regulatory Matters [Line Items]
Number of scenarios with projected costs submitted for cost recovery program | scenario						3
Recovery period for expenditures for cost recovery program						3 years
Public utilities, requested year one						$ 311
Public utilities, requested year two						354
Public utilities, requested year three						$ 510
Approved amount of annual increase				$ 311
Public utilities, GHG reduction targets	$ 314
Amortization period							5 years
Public utilities, requested cost percentage, year one						0.33
Public utilities, requested cost percentage, year two						0.67
Public utilities, requested cost percentage, year three						1
2024-2030 EmPOWER Program Cycle | Minimum
Regulatory Matters [Line Items]
Expected reduction to pre-tax return on programs		$ 25
2024-2030 EmPOWER Program Cycle | Maximum
Regulatory Matters [Line Items]
Expected reduction to pre-tax return on programs		$ 30