XML 152 R133.htm IDEA: XBRL DOCUMENT v3.21.1
Post-employment Benefits - Fair value plan assets (Details) - MXN ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Plan assets measured at fair value      
Post-employment benefit liability (asset) $ 2,080,651 $ 1,468,112 $ 962,497
Plan assets      
Plan assets measured at fair value      
Post-employment benefit liability (asset) (1,195,749) (1,379,496) $ (1,515,030)
Plan assets | Recurring basis      
Plan assets measured at fair value      
Mutual funds (fixed rate instruments) 231,837 218,269  
Money market securities 607,658 766,181  
Post-employment benefit liability (asset) 1,195,749 1,379,496  
Plan assets | Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Plan assets measured at fair value      
Mutual funds (fixed rate instruments) 231,837 218,269  
Money market securities 607,658 766,181  
Post-employment benefit liability (asset) 1,195,749 1,379,496  
Plan assets | Recurring basis | Trading equity securities - Common stock      
Plan assets measured at fair value      
Equity instruments 101,690 136,963  
Plan assets | Recurring basis | Trading equity securities - Common stock | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Plan assets measured at fair value      
Equity instruments 101,690 136,963  
Plan assets | Recurring basis | Other equity securities      
Plan assets measured at fair value      
Equity instruments 254,564 258,083  
Plan assets | Recurring basis | Other equity securities | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Plan assets measured at fair value      
Equity instruments $ 254,564 $ 258,083