Regulatory Matters - RECO Narrative (Details) - USD ($) $ in Thousands					1 Months Ended
	Jan. 01, 2024	Aug. 30, 2022	Jan. 01, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2024
RECO | New Jersey Board of Public Utilities
Public Utilities, General Disclosures [Line Items]
Investment plan					$ 47,800
Investment plan, term (in years)					5 years
CECONY
Public Utilities, General Disclosures [Line Items]
Deferred costs						$ 3,000
Electric | RECO
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease), amount	$ 20,700	$ 18,200		$ 16,900
Electric | RECO | New Jersey Board of Public Utilities
Public Utilities, General Disclosures [Line Items]
Requested rate increase (decrease), amount			$ 9,650