Long-Term Debt Issuances and Retirements (Details) - The Williams Companies, Inc. [Member] - USD ($) $ in Millions	Jan. 15, 2025	Jun. 24, 2024	Mar. 04, 2024	Nov. 15, 2023	Oct. 17, 2022	May 16, 2022	Jan. 18, 2022	Jan. 09, 2025	Dec. 31, 2024	Aug. 13, 2024		Jan. 05, 2024	Aug. 10, 2023		Mar. 02, 2023	Aug. 08, 2022
5.6 Percent Senior Unsecured Notes Due 2035 | Subsequent Event [Member]
Debt Instrument [Line Items]
Long-term debt face amount								$ 1,000
Long-term debt interest rate								5.60%
6.0 Percent Senior Unsecured Notes Due 2055 | Subsequent Event [Member]
Debt Instrument [Line Items]
Long-term debt face amount								$ 500
Long-term debt interest rate								6.00%
4.8 Percent Senior Unsecured Notes Due 2029
Debt Instrument [Line Items]
Long-term debt face amount										$ 450
Long-term debt interest rate									4.80%	4.80%
5.15 Percent Senior Unsecured Notes Due 2034
Debt Instrument [Line Items]
Long-term debt face amount										$ 300	[1]	$ 1,000
Long-term debt interest rate									5.15%	5.15%	[1]	5.15%
5.8 Percent Senior Unsecured Notes Due 2054
Debt Instrument [Line Items]
Long-term debt face amount										$ 750
Long-term debt interest rate									5.80%	5.80%
4.9 Percent Senior Unsecured Notes Due 2029
Debt Instrument [Line Items]
Long-term debt face amount												$ 1,100
Long-term debt interest rate									4.90%			4.90%
5.40 Percent Senior Unsecured Notes Due 2026
Debt Instrument [Line Items]
Long-term debt face amount													$ 350	[2]	$ 750
Long-term debt interest rate									5.40%				5.40%	[2]	5.40%
5.30 Percent Senior Unsecured Notes Due 2028
Debt Instrument [Line Items]
Long-term debt face amount													$ 900
Long-term debt interest rate									5.30%				5.30%
5.65 Percent Senior Unsecured Notes Due 2033
Debt Instrument [Line Items]
Long-term debt face amount															$ 750
Long-term debt interest rate									5.65%						5.65%
4.65 Percent Senior Unsecured Notes Due 2032
Debt Instrument [Line Items]
Long-term debt face amount																$ 1,000
Long-term debt interest rate									4.65%							4.65%
5.3 Percent Senior Unsecured Notes Due 2052
Debt Instrument [Line Items]
Long-term debt face amount																$ 750
Long-term debt interest rate									5.30%							5.30%
3.9% Senior Unsecured Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt interest rate									3.90%
3.9% Senior Unsecured Notes Due 2025 [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Long-term debt interest rate	3.90%
Extinguishment of Debt, Amount	$ 750
4.55% Senior Unsecured Notes Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt interest rate		4.55%							4.55%
Extinguishment of Debt, Amount		$ 1,250
4.3% Senior Unsecured Notes Due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt interest rate			4.30%						4.30%
Extinguishment of Debt, Amount			$ 1,000
4.5% Senior Unsecured Notes Due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt interest rate				4.50%
Extinguishment of Debt, Amount				$ 600
3.7% Senior Unsecured Notes Due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt interest rate					3.70%
Extinguishment of Debt, Amount					$ 850
3.35% Senior Unsecured Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt interest rate						3.35%
Extinguishment of Debt, Amount						$ 750
3.6% Senior Unsecured Notes Due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt interest rate							3.60%
Extinguishment of Debt, Amount							$ 1,250

[1] Additional issuance of the 5.15 percent senior notes due 2034 issued on January 5, 2024, and trade interchangeably with such notes.

[2] Additional issuance of the 5.40 percent senior notes due 2026 issued on March 2, 2023, and trade interchangeably with such notes.