Consolidated Statement of Income - USD ($) shares in Thousands, $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Revenues		$ 10,965	$ 10,627	$ 7,719
Costs and expenses:
Operating and maintenance expenses		1,817	1,548	1,326
Depreciation and amortization expenses		2,009	1,842	1,721
Selling, general, and administrative expenses		636	558	466
Impairment of certain assets (Note 15)		0	2	182
Impairment of goodwill (Note 15)		0	0	187
Other (income) expense – net		28	14	22
Total costs and expenses		7,947	7,996	5,517
Operating income (loss)		3,018	2,631	2,202
Equity earnings (losses) (Note 8)		637	608	328
Impairment of equity-method investments (Note 15)		0	0	(1,046)
Other investing income (loss) – net		16	7	8
Interest incurred		(1,167)	(1,190)	(1,192)
Interest capitalized		20	11	20
Other income (expense) – net		18	6	(43)
Income (loss) before income taxes		2,542	2,073	277
Less: Provision (benefit) for income taxes		425	511	79
Net income (loss)		2,117	1,562	198
Less: Net income (loss) attributable to noncontrolling interests		68	45	(13)
Amounts attributable to The Williams Companies, Inc. available to common stockholders:
Net income (loss) attributable to The Williams Companies, Inc.		2,049	1,517	211
Less: Preferred stock dividends		3	3	3
Net income (loss) available to common stockholders		$ 2,046	$ 1,514	$ 208
Basic earnings (loss) per common share:
Net income (loss)		$ 1.68	$ 1.25	$ 0.17
Weighted-average shares (thousands)		1,218,362	1,215,221	1,213,631
Diluted earnings (loss) per common share:
Net income (loss)		$ 1.67	$ 1.24	$ 0.17
Weighted-average shares (thousands)		1,222,672	1,218,215	1,215,165
Service [Member]
Revenues:
Revenues		$ 6,536	$ 6,001	$ 5,924
NonRegulated Service Commodity Consideration [Member]
Revenues:
Revenues		260	238	129
Product [Member]
Revenues:
Revenues		4,556	4,536	1,671
Energy Commodities and Service
Revenues:
Revenues	[1]	(387)	(148)	(5)
Oil and Gas, Purchased [Member]
Costs and expenses:
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		3,369	3,931	1,545
Natural Gas Purchased For Shrink [Member]
Costs and expenses:
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 88	$ 101	$ 68

[1] We record transactions that qualify as derivatives at fair value with changes in fair value recognized in earnings in the period of change and characterized as unrealized gains or losses. Gains and losses on derivatives held for energy trading purposes are presented on a net basis in revenue.