v3.26.1
Wells, Pipelines, Properties, Plant and Equipment, Net - Summary of Net Impairment by CGUs (Pemex Industrial Processes) (Detail) - Industrial Processes (formerly part of Pemex Industrial Transformation)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
MXN ($)
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net $ (1,115,093)
Tula Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 11,780,665
Morelos Petrochemical Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net (422,534)
Cosoleacaque Petrochemical Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 1,647,455
Cangrejera Ethylene Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net (104,726)
Coatzacoalcos Gas Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 563,041
Pajaritos Ethylene Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 46,777
Minatitlán Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net (315,583)
Madero Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net (624,390)
Cadereyta Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net (4,339,830)
Salina Cruz Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net $ (9,345,968)