v3.26.1
Wells, Pipelines, Properties, Plant and Equipment, Net - Summary of Net (Impairment) Reversal of Impairment (CGUs Pemex Exploration and Production) (Detail) - Exploration and Extraction (formerly Pemex Exploration and Production) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total $ 12,597,956 $ 24,027,347 $ (2,353,077)
Cantarell      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 37,238,709 (904,083) 15,174,961
Tsimin Xux      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 2,732,718 3,211,743 (9,532,221)
Ayin-Alux      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 1,030,368 486,415 0
Aceite Terciario del Golfo      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 18,799,827 (16,192,262)
Tamaulipas Constituciones      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 2,578,602 1,710,627
Poza Rica      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 385,159 (397,084)
Cárdenas-Mora      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 0 1,150,448
Crudo Ligero Marino      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 0 1,420,120
Santuario El Golpe      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 0 1,454,789
Ixtal - Manik      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 0 6,042,806
Chuc      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total 0 0 6,445,006
Misión (CEE)      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (62,104) 5,902 (458,354)
Antonio J. Bermúdez      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (184,690) 3,903,165 9,724,991
Lakach      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (287,187) 3,546,439 (423,347)
Santuario CEE      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (832,888) 0 0
Arenque      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (1,560,264) 1,702,529 (1,705,447)
Cuenca de Macuspana      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (1,576,853) 83,560 837,460
Burgos      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (3,442,880) (6,772,427) (10,631,921)
Ku Maloob Zaap      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total (8,425,068) 0 0
Ogarrio Magallanes      
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]      
Total $ (12,031,905) $ (2,999,484) $ (6,973,649)