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ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Changes in Goodwill (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Goodwill	$ 5,618	$ 5,618
Distribution Segment
Property, Plant and Equipment [Line Items]
Goodwill	3,222
Integrated Segment
Property, Plant and Equipment [Line Items]
Goodwill	1,953
Stand-Alone Transmission Segment
Property, Plant and Equipment [Line Items]
Goodwill	$ 443

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