VARIABLE INTEREST ENTITIES - Schedule of Variable Interest Entities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current Assets
Cash and cash equivalents	$ 137	$ 160
Receivables	1,318	1,318
Materials and supplies, at average cost	512	421
Prepaid taxes and other	293	217
Total current assets	2,568	2,415
Property, plant and equipment, net	38,412	36,285
Goodwill	5,618	5,618
Investments	663	622
Regulatory assets	369	33
Other	1,137	1,135
TOTAL ASSETS	48,767	46,108
Current:
Accounts payable	1,362	1,503
Accrued interest	292	254
Accrued taxes	700	668
Other	241	364
Total current liabilities	5,386	3,958
Long-term debt and other long-term obligations	22,885	21,203
Accumulated deferred income taxes	4,530	4,202
Regulatory liabilities	1,214	1,847
Other	2,173	1,920
Total noncurrent liabilities	32,465	31,507
TOTAL LIABILITIES	37,851	35,465
Variable Interest Entity, Primary Beneficiary
Current Assets
Cash and cash equivalents	76	77
Receivables	88	79
Materials and supplies, at average cost	1	1
Prepaid taxes and other	23	23
Total current assets	188	180
Property, plant and equipment, net	10,227	9,365
Goodwill	224	224
Investments	19	20
Regulatory assets	16	1
Other	310	273
Total investments and other noncurrent assets	10,796	9,883
TOTAL ASSETS	10,984	10,063
Current:
Accounts payable	2	0
Accrued interest	63	58
Accrued taxes	262	278
Other	14	7
Total current liabilities	341	343
Long-term debt and other long-term obligations	5,275	4,949
Accumulated deferred income taxes	1,218	1,129
Regulatory liabilities	307	443
Other	285	256
Total noncurrent liabilities	7,085	6,777
TOTAL LIABILITIES	$ 7,426	$ 7,120