Consolidated Statement of Operations (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Service revenues	$ 1,310	$ 1,247	$ 3,853	$ 3,678
Product sales	581	658	1,950	1,623
Total revenues	1,891	1,905	5,803	5,301
Costs and expenses:
Product costs	504	461	1,620	1,180
Operating and maintenance expenses	400	394	1,157	1,179
Depreciation and amortization expenses	433	435	1,308	1,326
Selling, general, and administrative expenses	138	177	452	556
Gain on sale of Geismar Interest (Note 3)	(1,095)	0	(1,095)	0
Impairment of certain assets (Note 11)	1,210	1	1,236	811
Other (income) expense – net	24	92	34	130
Total costs and expenses	1,614	1,560	4,712	5,182
Operating income (loss)	277	345	1,091	119
Equity earnings (losses)	115	104	347	302
Impairment of equity-method investments (Note 11)	0	0	0	(112)
Other investing income (loss) – net (Note 4)	4	28	278	64
Interest incurred	(275)	(304)	(842)	(916)
Interest capitalized	8	7	24	30
Other income (expense) – net	20	20	115	52
Income (loss) before income taxes	149	200	1,013	(461)
Provision (benefit) for income taxes	24	69	126	(74)
Net income (loss)	125	131	887	(387)
Less: Net income (loss) attributable to noncontrolling interests	92	70	400	22
Net income (loss) attributable to The Williams Companies, Inc.	$ 33	$ 61	$ 487	$ (409)
Basic earnings (loss) per common share:
Net income (loss)	$ 0.04	$ 0.08	$ 0.59	$ (0.55)
Weighted-average shares (thousands)	826,779	750,754	825,925	750,579
Diluted earnings (loss) per common share:
Net income (loss)	$ 0.04	$ 0.08	$ 0.59	$ (0.55)
Weighted-average shares (thousands)	829,368	751,858	828,150	750,579
Cash dividends declared per common share	$ 0.30	$ 0.20	$ 0.90	$ 1.48