Condensed Consolidated Statement of Operations Statement - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Operating Revenues
Transportation, storage and processing of natural gas		$ 792	$ 781	$ 2,426	$ 2,425
Distribution of natural gas		153	160	792	1,005
Sales of natural gas liquids		15	41	68	138
Transportation of crude oil		89	93	262	267
Other		26	28	70	83
Total operating revenues		1,075	1,103	3,618	3,918
Operating Expenses
Natural gas and petroleum products purchased		50	76	401	627
Operating, maintenance and other		425	364	1,158	1,107
Depreciation and amortization		193	188	582	574
Property and other taxes		86	86	291	274
Total operating expenses		754	714	2,432	2,582
Operating Income		321	389	1,186	1,336
Other Income and Expenses
Earnings (loss) from equity investments		51	48	100	(117)
Other income and expenses, net		52	31	123	73
Total other income and expenses		103	79	223	(44)
Interest Expense		133	155	437	480
Earnings Before Income Taxes		291	313	972	812
Income Tax Expense		10	70	160	164
Net Income		281	243	812	648
Net Income—Noncontrolling Interests		86	69	234	189
Net Income—Controlling Interests		$ 195	$ 174	$ 578	$ 459
Weighted-average shares outstanding
Basic		701	671	692	671
Diluted		703	672	693	672
Earnings per share
Basic	[1]	$ 0.28	$ 0.26	$ 0.84	$ 0.68
Diluted	[1]	0.28	0.26	0.83	0.68
Dividends per share		$ 0.405	$ 0.37	$ 1.215	$ 1.11

[1] Quarterly earnings per share amounts are stand-alone calculations and may not be additive to full-year amounts due to rounding.