XML 25 R2.htm IDEA: XBRL DOCUMENT v3.25.0.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2024
Feb. 20, 2025
Jun. 30, 2024
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity Registrant Name Williams Companies, Inc.    
Entity File Number 1-4174    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 73-0569878    
Entity Address, Address Line One One Williams Center    
Entity Address, City or Town Tulsa    
Entity Address, State or Province OK    
Entity Address, Postal Zip Code 74172    
City Area Code 800    
Local Phone Number 945-5426    
Title of 12(b) Security Common Stock, $1.00 par value    
Trading Symbol WMB    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
DocumentFinStmtErrorCorrectionFlag true    
Document Financial Statement Restatement Recovery Analysis [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 49,974,668,630
Entity Common Stock, Shares Outstanding   1,219,369,295  
Documents Incorporated by Reference [Text Block]
Portions of the Williams’ Definitive Proxy Statement for the Williams’ Annual Meeting of Stockholders to be held on April 29, 2025, are incorporated into Part III, as specifically set forth in Part III.
    
Entity Central Index Key 0000107263    
Amendment Flag false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Transcontinental Gas Pipe Line Company, LLC [Member]      
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity Registrant Name Transcontinental Gas Pipe Line Company, LLC    
Entity File Number 1-7584    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 74-1079400    
Entity Address, Address Line One 2800 Post Oak Boulevard    
Entity Address, City or Town Houston    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 77056    
City Area Code 713    
Local Phone Number 215-2000    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
DocumentFinStmtErrorCorrectionFlag false    
Entity Shell Company false    
Entity Public Float     0
Entity Common Stock, Shares Outstanding   0  
Entity Central Index Key 0000099250    
Amendment Flag false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Northwest Pipeline LLC [Member]      
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity Registrant Name Northwest Pipeline LLC    
Entity File Number 1-7414    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 26-1157701    
Entity Address, Address Line One One Williams Center    
Entity Address, City or Town Tulsa    
Entity Address, State or Province OK    
Entity Address, Postal Zip Code 74172    
City Area Code 800    
Local Phone Number 945-5426    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
DocumentFinStmtErrorCorrectionFlag false    
Entity Shell Company false    
Entity Public Float     $ 0
Entity Common Stock, Shares Outstanding   0  
Entity Central Index Key 0000110019    
Amendment Flag false    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31