XML 72 R139.htm IDEA: XBRL DOCUMENT v3.20.1
Capital Stock and Long-term Retention Plan - Stock awards (Details) - Long-Term Retention Plan
EquityInstruments in Thousands, $ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2019
EquityInstruments
MXN ($)
$ / shares
Dec. 31, 2019
EquityInstruments
$ / shares
Dec. 31, 2018
EquityInstruments
$ / shares
Dec. 31, 2017
EquityInstruments
$ / shares
Dec. 31, 2016
EquityInstruments
Dec. 31, 2015
EquityInstruments
CPOs or CPOs Equivalent            
Paid by employees (in CPOs) | $ (4,745.3)          
Forfeited (in CPOs) | $ (9,490.5)          
Weighted-Average Exercise Price            
Weighted-average remaining contractual life of the awards   1 year 8 months 12 days 1 year 3 months 11 days      
CPOs            
CPOs or CPOs Equivalent            
Outstanding at beginning of year (in CPOs) | EquityInstruments   179,051 157,915      
Conditionally sold (in CPOs) | EquityInstruments   72,558 32,500 37,000 39,000 39,000
Paid by employees (in CPOs) | EquityInstruments   (3,107) (6,897)      
Forfeited (in CPOs) | EquityInstruments   (5,030) (4,467)      
Outstanding at end of year (in CPOs) | EquityInstruments 243,472 243,472 179,051 157,915    
To be paid by employees at end of year (in CPOs) | EquityInstruments 110,828 110,828 81,631      
Weighted-Average Exercise Price            
Outstanding at beginning of year (in pesos per CPO) | $ / shares   $ 75.77 $ 79.75      
Conditionally sold | $ / shares   38.50 52.05      
Paid by employees (in pesos per CPO) | $ / shares   33.75 41.09      
Forfeited (in pesos per CPO) | $ / shares   73.20 79.38      
Outstanding at end of year (in pesos per CPO) | $ / shares $ 65.19 65.19 75.77 $ 79.75    
To be paid by employees at end of year (in pesos per CPO) | $ / shares $ 81.26 $ 81.26 $ 78.48