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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, 2023
MXN ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
MXN ($)
Disclosure of accounts receivable [line items]      
Contract assets $ 25,062,219   $ 28,573,717
Allowance of expected credit losses (38,194,997)   (42,079,056)
Trade and other receivables 216,202,273   208,148,699
Non-current subscribers, distributors and contractual assets 9,400,123 $ 556 8,724,497
Total current subscribers, distributors and contractual assets 206,802,150 $ 12,242 199,424,202
Cost [member] | Receivable from subscribers and distributors [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables 156,569,986   154,659,093
Cost [member] | Telecommunications carriers for network interconnection and other services [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables 2,960,653   3,519,170
Cost [member] | Recoverable taxes [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables 57,501,535   46,947,187
Cost [member] | Sundry debtors [member]      
Disclosure of accounts receivable [line items]      
Trade and other receivables $ 12,302,877   $ 16,528,588