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Other Assets, Net - Summary of Analysis of Other Assets (Detail)
$ in Thousands, $ in Millions
Dec. 31, 2019
MXN ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
MXN ($)
Current portion:      
Advances to suppliers (different from PP&E and inventories) $ 7,718,343   $ 12,931,247
Prepaid insurance 978,927   949,590
Other 776,164   1,415,356
Other current assets 9,473,434 $ 503 15,296,193
Non-current portion:      
Recoverable taxes 14,647,726   11,514,455
Prepayments for the use of fiber optics 2,095,556   3,985,216
Judicial Deposits 19,506,147   18,172,342
Prepaid expenses 5,642,590   8,789,588
Total $ 41,892,019   $ 42,461,601