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Accounts Payable, Accrued Liabilities and Asset Retirement Obligations - Summary of Balance of Accrued Liabilities (Detail)
$ in Thousands, $ in Millions
Dec. 31, 2019
MXN ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
MXN ($)
Current liabilities      
Direct employee benefits payable $ 17,991,283   $ 16,152,118
Contingencies 34,379,969   40,281,573
Total $ 52,371,252 $ 2,779 $ 56,433,691