CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
OPERATING REVENUE
Total operating revenue	[1]	$ 1,918	$ 2,030
OPERATING EXPENSES
Cost of services and products (exclusive of depreciation and amortization)	[1]	473	582
Selling, general and administrative		143	157
Operating expenses - affiliates		195	195
Depreciation and amortization		328	336
Total Operating Expenses	[1]	1,139	1,270
OPERATING INCOME		779	760
OTHER (EXPENSE) INCOME
Interest expense		(75)	(95)
Interest expense - affiliates, net		(16)	(16)
Other (expense) income, net		(8)	9
Total other expense, net		(99)	(102)
INCOME BEFORE INCOME TAXES		680	658
Income tax expense		177	171
NET INCOME		503	487
Non-affiliate services
OPERATING REVENUE
Total operating revenue	[1]	1,235	1,308
Affiliate Services
OPERATING REVENUE
Total operating revenue		$ 683	$ 722

[1] Reclassifications were made within certain 2019 comparative figures due to the retrospective application of an accounting policy election during the first quarter of 2020. Refer to Note 1—Background and our Form 8-K filing dated May 7, 2020 for further information.