Debt and Banking Arrangements Long-Term Debt Issuances and Retirements (Details 1) - Williams Companies Inc [Member] - USD ($) $ in Millions	Oct. 17, 2022	May 16, 2022	Jan. 18, 2022	Aug. 08, 2022
3.6 Percent Senior Unsecured Notes Due 2022
Debt Instrument [Line Items]
Extinguishment of Debt, Amount			$ 1,250
Long-term debt interest rate			3.60%
3.35 Percent Senior Unsecured Notes Due 2022
Debt Instrument [Line Items]
Extinguishment of Debt, Amount		$ 750
Long-term debt interest rate		3.35%
4.65 Percent Senior Unsecured Notes Due 2032
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 1,000
Long-term debt interest rate				4.65%
5.30 Percent Senior Unsecured Notes Due 2052
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 750
Long-term debt interest rate				5.30%
3.7 Percent Senior Unsecured Notes Due 2023 | Subsequent Event [Member]
Debt Instrument [Line Items]
Extinguishment of Debt, Amount	$ 850
Long-term debt interest rate	3.70%