REGULATORY MATTERS - Maryland (Details) - PE - Maryland $ in Millions	Dec. 29, 2023 USD ($)	Aug. 01, 2023 USD ($)	Mar. 22, 2023
Regulatory Matters [Line Items]
Incremental energy savings goal per year (percent)			0.20%
Incremental energy savings goal thereafter (percent)			2.00%
2021-2023 EmPOWER Program Cycle
Regulatory Matters [Line Items]
Amortization period			5 years
2024-2026 EmPOWER Program Cycle
Regulatory Matters [Line Items]
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
Recovery period for expenditures for cost recovery program		3 years
Public utilities, requested year one		$ 310
Public utilities, requested year two		354
Public utilities, requested year three		$ 510
Approved amount of annual increase	$ 310