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Property, Plant and Equipment, Net - Others (Details) - MXN ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment, Net      
Property, plant and equipment $ 83,329,232 $ 87,342,530 $ 85,719,810
Cost      
Property, Plant and Equipment, Net      
Property, plant and equipment 192,358,016 186,145,082 170,050,929
Accumulated Amortisation      
Property, Plant and Equipment, Net      
Property, plant and equipment (109,028,784) (98,802,552) $ (84,331,119)
Subscriber leased set-top equipment      
Property, Plant and Equipment, Net      
Property, plant and equipment 12,654,351 12,891,527  
Subscriber leased set-top equipment | Cost      
Property, Plant and Equipment, Net      
Property, plant and equipment 34,923,489 31,021,716  
Subscriber leased set-top equipment | Accumulated Amortisation      
Property, Plant and Equipment, Net      
Property, plant and equipment $ (22,269,138) $ (18,130,189)