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Cover
 12 Months Ended
Dec. 31, 2021
shares
Entity Addresses [Line Items]  
Document Type 20-F
Amendment Flag false
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Period End Date Dec. 31, 2021
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2021
Current Fiscal Year End Date --12-31
File Number Item Type 001-34429
Entity Registrant Name Pampa Energy Inc.
Entity Central Index Key 0001469395
Entity Incorporation, State or Country Code C1
Entity Address, Address Line One Maipú 1
Entity Address, City or Town Buenos Aires
Entity Address, Country AR
Entity Address, Postal Zip Code C1084ABA
Title of 12(b) Security Common Stock
Trading Symbol PAM
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 Emerging Growth Company false
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Entity Common Stock, Shares Outstanding 1,382,527,041
ICFR Auditor Attestation Flag true
Auditor Firm ID 1349
Auditor Name PRICE WATERHOUSE & CO. S.R.L.
Auditor Location Buenos Aires
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One Maipú 1
Entity Address, City or Town Buenos Aires
Entity Address, Country AR
Entity Address, Postal Zip Code C1084ABA
City Area Code + 54 11
Local Phone Number 4344 6000
Contact Personnel Name María Carolina Sigwald
Contact Personnel Fax Number 54 11 4344 6473