Consolidated Statement of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues and Other Income
Operating revenues	$ 241	$ 263	$ 508	$ 565
Equity in earnings of affiliates	104	137	240	256
Gain from equity interest transfer	84	0	84	0
Other income	1	1	2	3
Total revenues and other income	430	401	834	824
Costs and Expenses
Operating and maintenance expenses	84	85	172	224
Depreciation	31	29	61	58
General and administrative expenses	17	17	34	35
Taxes other than income taxes	10	9	21	20
Interest and debt expense	28	27	57	54
Other expenses	5	0	7	0
Total costs and expenses	175	167	352	391
Income before income taxes	255	234	482	433
Income tax expense	0	1	1	2
Net income	255	233	481	431
Less: Preferred unitholders’ interest in net income	9	9	19	19
Less: General partner’s interest in net income	0	71	0	140
Limited partners’ interest in net income	$ 246	$ 153	$ 462	$ 272
Common Units
Net Income Per Limited Partner Unit (dollars)
Common units - basic (in dollars per share)	$ 1.07	$ 1.23	$ 2.02	$ 2.19
Common units - diluted (in dollars per share)	$ 1.05	$ 1.15	$ 1.99	$ 2.07
Weighted-Average Limited Partner Units Outstanding (thousands)
Common units—basic (in shares)	228,340,146	124,824,010	228,326,203	124,542,536
Common units—diluted (in shares)	242,160,000	138,644,000	242,146,000	138,362,000
Third Party
Revenues and Other Income
Operating revenues	$ 5	$ 7	$ 14	$ 13
Related Party
Revenues and Other Income
Operating revenues	$ 236	$ 256	$ 494	$ 552