XML 57 R48.htm IDEA: XBRL DOCUMENT v3.22.1
Debt and Banking Arrangements Credit Facilities and Commercial Paper (Details 2) - Williams Companies Inc [Member]
$ in Millions
Mar. 31, 2022
USD ($)
Credit Facility and Commercial Paper [Line Items]  
Credit facility, capacity $ 3,750 [1]
Credit facility, loans outstanding 0 [1]
Commercial Paper [Member]  
Credit Facility and Commercial Paper [Line Items]  
Commercial paper, outstanding 0
Credit facility, capacity 3,500
Letters Of Credit Under Certain Bilateral Bank Agreements [Member]  
Credit Facility and Commercial Paper [Line Items]  
Credit facility, letters of credit outstanding $ 16
[1] In managing our available liquidity, we do not expect a maximum outstanding amount in excess of the capacity of our credit facility inclusive of any outstanding amounts under our commercial paper program.