v3.26.1
Wells, Pipelines, Properties, Plant And Equipment, Net - Impairment of Fixed Assets (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]  
Total $ 129,640,749
Tula Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 43,042,423
Salamanca Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 28,082,765
Cadereyta Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 24,735,313
Cangrejera Petrochemical Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 20,691,534
Salina Cruz Refinery  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 10,680,107
Independencia Petrochemical Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 1,963,400
Morelos Petrochemical Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 211,498
Pajaritos Ethylene Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total 184,970
Coatzacoalcos Gas Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Total $ 48,739