XML 181 R135.htm IDEA: XBRL DOCUMENT v3.19.1
Other Current and Non-current Liabilities - Summary of Other Non-current Liabilities (Detail) - MXN ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Subclassifications of assets, liabilities and equities [abstract]    
Asset retirement obligations $ 8,013 $ 7,906
Accruals for legal assessments and other responsibilities 879 1,599
Non-current liabilities for valuation of derivative instruments 406 402
Environmental liabilities 573 991
Other non-current liabilities and provisions 5,134 4,751
Other non-current liabilities $ 15,005 $ 15,649