XML 138 R123.htm IDEA: XBRL DOCUMENT v3.22.1
Post-employment Benefits - Sensitivity (Details) - MXN ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Sensitivity analysis    
Discount rate (as a percent) 7.80% 6.60%
Discount rate    
Sensitivity analysis    
Discount rate (as a percent) 7.80% 6.60%
Decrease in actuarial assumption (in basis points) 0.50% 0.50%
Increase in actuarial assumption $ 3,308,348 $ 3,382,711