CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Total operating revenue	$ 6,449	$ 6,951	$ 7,313
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	1,646	1,722	1,995
Selling, general and administrative	454	354	564
Operating expenses - affiliates	734	758	728
Depreciation and amortization	860	1,009	1,315
Total operating expenses	3,694	3,843	4,602
OPERATING INCOME	2,755	3,108	2,711
OTHER (EXPENSE) INCOME
Interest expense	(112)	(181)	(279)
Interest expense - affiliate, net	(60)	(105)	(74)
Other income (expense), net	7	(6)	(56)
Total other expense, net	(165)	(292)	(409)
INCOME BEFORE INCOME TAXES	2,590	2,816	2,302
Income tax expense	671	709	595
NET INCOME	1,919	2,107	1,707
Non-Affiliate Services
Revenue from Contract with Customer [Abstract]
Total operating revenue	4,155	4,562	4,826
Affiliate Services
Revenue from Contract with Customer [Abstract]
Total operating revenue	$ 2,294	$ 2,389	$ 2,487