CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
OPERATING REVENUE
Total operating revenue	$ 1,618	$ 1,730	$ 4,906	$ 5,246
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	427	426	1,249	1,305
Selling, general and administrative	138	36	361	249
Operating expenses—affiliates	176	177	536	561
Depreciation and amortization	217	232	640	780
Total operating expenses	958	871	2,786	2,895
OPERATING INCOME	660	859	2,120	2,351
OTHER (EXPENSE) INCOME
Interest expense	(28)	(47)	(84)	(142)
Interest expense—affiliate, net	(14)	(25)	(55)	(87)
Other (expense) income, net	(1)	(3)	4	(7)
Total other expense, net	(43)	(75)	(135)	(236)
INCOME BEFORE INCOME TAX EXPENSE	617	784	1,985	2,115
Income tax expense	158	202	506	542
NET INCOME	459	582	1,479	1,573
Non-affiliate services
OPERATING REVENUE
Total operating revenue	1,024	1,135	3,148	3,452
Affiliate Services
OPERATING REVENUE
Total operating revenue	$ 594	$ 595	$ 1,758	$ 1,794