XML 122 R86.htm IDEA: XBRL DOCUMENT v3.19.1
Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment, Net Under Capital Leases (Detail)
$ in Thousands, $ in Millions
Dec. 31, 2018
MXN ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
MXN ($)
Dec. 31, 2016
MXN ($)
Dec. 31, 2015
MXN ($)
Disclosure of detailed information about property, plant and equipment [line items]          
Property, plant and equipment $ 640,000,720 $ 32,516 $ 676,343,198 $ 701,190,066 $ 573,528,878
Cost [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Property, plant and equipment 1,285,672,457   1,303,278,914 1,256,341,372 861,840,855
Accumulated depreciation [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Property, plant and equipment (645,671,737)   (626,935,716) $ (555,151,306) $ (288,311,977)
Property, plant and equipment under capital leases [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Property, plant and equipment 4,240,440   4,641,518    
Property, plant and equipment under capital leases [member] | Cost [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Property, plant and equipment 7,770,681   8,116,532    
Property, plant and equipment under capital leases [member] | Accumulated depreciation [member]          
Disclosure of detailed information about property, plant and equipment [line items]          
Property, plant and equipment $ 3,530,241   $ 3,475,014