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Debt and Financing Arrangement (Details)
Mar. 31, 2024
USD ($)
Credit Agreement  
Credit Facility and Commercial Paper [Line Items]  
Credit facility capacity $ 500,000,000
Williams Companies Inc  
Credit Facility and Commercial Paper [Line Items]  
Commercial paper outstanding 0
Williams Companies Inc | Commercial paper program  
Credit Facility and Commercial Paper [Line Items]  
Credit facility capacity 3,500,000,000
Williams Companies Inc | Credit Agreement  
Credit Facility and Commercial Paper [Line Items]  
Credit facility capacity 3,750,000,000
Additional amount by which credit facility can be increased 500,000,000
Letters of credit outstanding 0
Loans outstanding $ 0