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Liability related to right of use of assets - Summary of lease cost recognized expenses (Detail) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Statement [line items]      
Depreciation expense of right-of-use assets $ 28,984,861 $ 25,525,305 $ 26,759,221
Interest expense on lease liabilities 8,903,397 7,129,251 8,800,153
Expense relating to short-term leases 24,234 29,833 32,238
Expense relating to leases of low-value assets 886 685 2,883
Variable lease payments 65,520 68,236 78,494
Total 37,978,898 32,753,310 35,672,989
Other [Member]      
Statement [line items]      
Depreciation expense of right-of-use assets 18,095,871 19,932,317 22,404,924
Interest expense on lease liabilities 6,395,988 6,212,774 7,081,693
Expense relating to short-term leases 24,234 29,833 32,238
Expense relating to leases of low-value assets 886 685 2,883
Variable lease payments 65,520 68,236 78,494
Total 24,582,499 26,243,845 29,600,232
Related Party [Member]      
Statement [line items]      
Depreciation expense of right-of-use assets 10,888,990 5,592,988 4,354,297
Interest expense on lease liabilities 2,507,409 916,477 1,718,460
Expense relating to short-term leases     0
Total $ 13,396,399 $ 6,509,465 $ 6,072,757