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Accounts Receivable from Subscribers, Distributors, Recoverable Taxes Contractual Assets and Other, Net - Summary of Analysis of Accounts Receivable by Component (Detail)
$ in Thousands, $ in Millions
Dec. 31, 2022
MXN ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
MXN ($)
Disclosure of accounts receivable [line items]      
Contract assets $ 28,573,717   $ 30,901,277
Allowance of expected credit losses (42,079,056)   (41,835,826)
Trade and other receivables 208,148,699   209,775,485
Non-current subscribers, distributors and contractual assets 8,724,497 $ 449 6,928,888
Total current subscribers, distributors and contractual assets 199,424,202 $ 10,272 202,846,597
Cost [member] | Receivable from subscribers and distributors [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables 154,659,093   157,433,609
Cost [member] | Telecommunications carriers for network interconnection and other services [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables 3,519,170   3,968,675
Cost [member] | Recoverable taxes [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables 46,947,187   43,734,164
Cost [member] | Sundry debtors [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables $ 16,528,588   $ 15,573,586