COMMITMENTS AND CONTINGENCIES - OTHER LITIGATION (Details) £ in Millions, $ in Millions	1 Months Ended		6 Months Ended
	Oct. 31, 2020 GBP (£)	Mar. 31, 2020 GBP (£)	Jun. 30, 2023 USD ($)	Jul. 31, 2023 lawsuit claim
Plaintiffs | HMRC VAT Claim
Loss Contingencies [Line Items]
Damages awarded		£ 45	$ 57
Cost and interest assessed	£ 21		$ 27
Energy Future Holdings Corp. | Subsequent Event
Loss Contingencies [Line Items]
Lawsuits pending | lawsuit				2
Number of proof of claims | claim				28,000