XML 201 R185.htm IDEA: XBRL DOCUMENT v3.19.1
Other Liabilities, Provisions, Contingencies and Commitments - Changes in Balance of Provisions Recorded (Detail) - MXN ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of financial liabilities [line items]      
Balance at beginning of the period $ 12,855    
Balance at end of the period 9,928 $ 12,855  
Indirect taxes [member]      
Disclosure of financial liabilities [line items]      
Balance at beginning of the period 6,836 11,065 $ 1,725
Penalties and other charges 123 362 173
New contingencies 178 91 768
Contingencies added in business combination 104 861 7,840
Cancellation and expiration 106 (796) (106)
Payments (112) (947) (6)
Brazil amnesty adoption   (3,321)  
Effects of changes in foreign exchange rates (951) (479) 671
Effects due to derecognition of Philippines (863)    
Balance at end of the period 5,421 6,836 11,065
Labor [member]      
Disclosure of financial liabilities [line items]      
Balance at beginning of the period 2,723 2,578 1,372
Penalties and other charges 310 56 203
New contingencies 330 283 397
Contingencies added in business combination 289   500
Cancellation and expiration (133) (32) (186)
Payments (193) (92) (336)
Effects of changes in foreign exchange rates (725) (69) 628
Venezuela deconsolidation effect   (1)  
Balance at end of the period 2,601 2,723 2,578
Legal [member]      
Disclosure of financial liabilities [line items]      
Balance at beginning of the period 3,296 2,785 318
Penalties and other charges 86 121 34
New contingencies 72 186 196
Contingencies added in business combination 67 783 2,231
Cancellation and expiration (146) (16) (46)
Payments (251) (417) (81)
Brazil amnesty adoption   7  
Effects of changes in foreign exchange rates (335) (151) 133
Venezuela deconsolidation effect   (2)  
Effects due to derecognition of Philippines (883)    
Balance at end of the period $ 1,906 $ 3,296 $ 2,785