REGULATORY MATTERS - GAS Schedule of Utility Regulation and Rate Design (Details)		1 Months Ended		12 Months Ended
	Aug. 01, 2022	Nov. 30, 2021	Sep. 30, 2021	Dec. 31, 2022
Nicor Gas
Public Utilities, General Disclosures [Line Items]
Authorized ROE		9.75%		9.75%
Atlanta Gas Light
Public Utilities, General Disclosures [Line Items]
Authorized ROE				10.25%
Virginia Natural Gas
Public Utilities, General Disclosures [Line Items]
Authorized ROE	10.35%		9.50%	9.50%
Chattanooga Gas
Public Utilities, General Disclosures [Line Items]
Authorized ROE				9.80%