Consolidated Statement of Income - USD ($) shares in Thousands, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues:
Revenues		$ 2,653	$ 2,559	$ 7,760	$ 8,123
Costs and expenses:
Operating and maintenance expenses		580	522	1,613	1,466
Depreciation and amortization expenses		566	521	1,654	1,542
Selling, general, and administrative expenses		170	146	520	483
Gain on sale of business (Note 3)		0	(130)	0	(130)
Other (income) expense – net		(25)	(9)	(69)	(49)
Total costs and expenses		1,815	1,565	5,214	4,899
Operating income (loss)		838	994	2,546	3,224
Equity earnings (losses)		147	127	431	434
Other investing income (loss) – net		290	24	332	45
Interest Expense, Nonoperating		(338)	(314)	(1,026)	(914)
Other income (expense) – net		31	30	95	69
Income (loss) before income taxes		968	861	2,378	2,858
Less: Provision (benefit) for income taxes		227	176	549	635
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		741	685	1,829	2,223
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		0	(1)	0	(88)
Net income (loss)		741	684	1,829	2,135
Less: Net income (loss) attributable to noncontrolling interests		35	30	90	94
Net income (loss) attributable to The Williams Companies, Inc.		706	654	1,739	2,041
Less: Preferred stock dividends		1	1	2	2
Net income (loss) available to common stockholders		705	653	1,737	2,039
Amounts attributable to The Williams Companies, Inc. available to common stockholders:
Income (loss) from continuing operations		705	654	1,737	2,127
Income (loss) from discontinued operations (Note 1)		$ 0	$ (1)	$ 0	$ (88)
Basic earnings (loss) per common share:
Income (Loss) from Continuing Operations, Per Basic Share		$ 0.58	$ 0.54	$ 1.43	$ 1.74
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share		0	0	0	(0.07)
Net income (loss)		$ 0.58	$ 0.54	$ 1.43	$ 1.67
Weighted-average shares (thousands)		1,219,537	1,216,951	1,219,021	1,218,021
Diluted earnings (loss) per common share:
Income (Loss) from Continuing Operations, Per Diluted Share		$ 0.58	$ 0.54	$ 1.42	$ 1.74
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share		0	0	0	(0.07)
Net income (loss)		$ 0.58	$ 0.54	$ 1.42	$ 1.67
Weighted-average shares (thousands)		1,222,869	1,220,073	1,222,444	1,222,650
Service [Member]
Revenues:
Revenues		$ 1,911	$ 1,770	$ 5,653	$ 5,212
NonRegulated Service Commodity Consideration [Member]
Revenues:
Revenues		34	45	82	108
Product [Member]
Revenues:
Revenues		703	720	2,158	2,158
Energy Commodities and Service
Revenues:
Revenues	[1]	5	24	(133)	645
Oil and Gas, Purchased [Member]
Costs and expenses:
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		517	484	1,467	1,458
Natural Gas Purchased For Shrink [Member]
Costs and expenses:
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization		$ 7	$ 31	$ 29	$ 129

[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.