Consolidated Statement of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues:
Revenues		$ 2,336	$ 2,483	$ 5,107	$ 5,564
Costs and expenses:
Operating and maintenance expenses		522	481	1,033	944
Depreciation and amortization expenses		540	515	1,088	1,021
Selling, general, and administrative expenses		164	161	350	337
Other (income) expense – net		(27)	(9)	(44)	(40)
Total costs and expenses		1,640	1,613	3,399	3,334
Operating income (loss)		696	870	1,708	2,230
Equity earnings (losses)		147	160	284	307
Other investing income (loss) – net		18	13	42	21
Interest expense		(339)	(306)	(688)	(600)
Other income (expense) – net		33	19	64	39
Income (loss) before income taxes		555	756	1,410	1,997
Less: Provision (benefit) for income taxes		129	175	322	459
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		426	581	1,088	1,538
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		0	(87)	0	(87)
Net income (loss)		426	494	1,088	1,451
Less: Net income (loss) attributable to noncontrolling interests		25	34	55	64
Net income (loss) attributable to The Williams Companies, Inc.		401	460	1,033	1,387
Less: Preferred stock dividends		0	0	1	1
Net income (loss) available to common stockholders		401	460	1,032	1,386
Amounts attributable to The Williams Companies, Inc. available to common stockholders:
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		$ 401	$ 547	$ 1,032	$ 1,473
Basic earnings (loss) per common share:
Income (Loss) from Continuing Operations, Per Basic Share		$ 0.33	$ 0.45	$ 0.85	$ 1.21
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share		0	(0.07)	0	(0.07)
Net income (loss)		$ 0.33	$ 0.38	$ 0.85	$ 1.14
Weighted-average shares (thousands)		1,219,367	1,217,673	1,218,761	1,218,564
Diluted earnings (loss) per common share:
Income (Loss) from Continuing Operations, Per Diluted Share		$ 0.33	$ 0.45	$ 0.84	$ 1.20
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share		0	(0.07)	0	(0.07)
Net income (loss)		$ 0.33	$ 0.38	$ 0.84	$ 1.13
Weighted-average shares (thousands)		1,222,236	1,219,915	1,222,229	1,223,429
Service [Member]
Revenues:
Revenues		$ 1,837	$ 1,748	$ 3,742	$ 3,442
NonRegulated Service Commodity Consideration [Member]
Revenues:
Revenues		18	27	48	63
Product [Member]
Revenues:
Revenues		610	593	1,455	1,438
Energy Commodities and Service
Revenues:
Revenues	[1]	(129)	115	(138)	621
Oil and Gas, Purchased [Member]
Costs and expenses:
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		424	421	950	974
Natural Gas Purchased For Shrink [Member]
Costs and expenses:
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 17	$ 44	$ 22	$ 98

[1] We record transactions that qualify as commodity 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 from commodity derivatives held for energy trading purposes are presented on a net basis in revenue.