Consolidated Statement of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues and Other Income
Operating revenues	$ 265	$ 270	$ 773	$ 835
Equity in earnings of affiliates	129	139	369	395
Gain from equity interest transfer	0	0	84	0
Other income	0	2	2	5
Total revenues and other income	394	411	1,228	1,235
Costs and Expenses
Operating and maintenance expenses	85	91	257	315
Depreciation	35	30	96	88
General and administrative expenses	16	16	50	51
Taxes other than income taxes	9	10	30	30
Interest and debt expense	32	26	89	80
Other expenses	0	0	7	0
Total costs and expenses	177	173	529	564
Income before income taxes	217	238	699	671
Income tax expense	1	1	2	3
Net Income	216	237	697	668
Less: Net income attributable to noncontrolling interest	10	0	10	0
Net Income Attributable to the Partnership	206	237	687	668
Less: Preferred unitholders’ interest in net income attributable to the Partnership	10	9	29	28
Less: General partner’s interest in net income attributable to the Partnership	0	0	0	140
Limited Partners’ Interest in Net Income Attributable to the Partnership	$ 196	$ 228	$ 658	$ 500
Common Units
Net Income Attributable to the Partnership Per Limited Partner Unit (dollars)
Common units - basic (in dollars per share)	$ 0.86	$ 1.18	$ 2.88	$ 3.39
Common units - diluted (in dollars per share)	$ 0.85	$ 1.15	$ 2.84	$ 3.25
Weighted-Average Limited Partner Units Outstanding (thousands)
Common units—basic (in shares)	228,340,146	192,273,672	228,330,885	147,367,681
Common units—diluted (in shares)	242,160,000	206,093,000	242,151,000	161,187,000
Third Party
Revenues and Other Income
Operating revenues	$ 9	$ 8	$ 23	$ 21
Related Party
Revenues and Other Income
Operating revenues	$ 256	$ 262	$ 750	$ 814