DERIVATIVES (Outstanding Derivative Balances) (Details) - Commodity Contract - Utility - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Derivatives And Hedging Activities [Line Items]
Gross Derivative Balance, Asset	$ 76	$ 100
Netting, Asset	0	0
Cash Collateral	3	0
Total Derivative Balance, Asset	79	100
Current assets – other
Derivatives And Hedging Activities [Line Items]
Gross Derivative Balance, Asset	154	186
Netting, Asset	(22)	(16)
Cash Collateral	3	0
Total Derivative Balance, Asset	135	170
Noncurrent assets – other
Derivatives And Hedging Activities [Line Items]
Gross Derivative Balance, Asset	195	233
Netting, Asset	0	0
Cash Collateral	0	0
Total Derivative Balance, Asset	195	233
Current liabilities – other
Derivatives And Hedging Activities [Line Items]
Gross Derivative Balance, Liabilities	(145)	(152)
Netting, Liabilities	22	16
Cash Collateral	0	0
Total Derivative Balance, Liabilities	(123)	(136)
Noncurrent liabilities – other
Derivatives And Hedging Activities [Line Items]
Gross Derivative Balance, Liabilities	(128)	(167)
Netting, Liabilities	0	0
Cash Collateral	0	0
Total Derivative Balance, Liabilities	$ (128)	$ (167)