v3.26.1
Wells, Pipelines, Properties, Plant and Equipment, Net - Summary of Net Impairment by CGUs (Pemex Energy Transformation) (Detail) - Energy Transformation (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 $ 3,467,927
Nuevo Pemex Gas Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 1,807,491
La Venta Gas Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 754,045
Cactus Gas Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 592,674
Matapionche Gas Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 305,296
Gas Poza Rica Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 19,256
Gas Arenque Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net 2,048
Matapionche Gas Processor Complex  
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]  
Impairment, net $ (12,883)