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Accounts receivable from subscribers, distributors, recoverable taxes contractual assets and other, net | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Accounts receivable from subscribers, distributors, recoverable taxes contractual assets and other, net | 5. Accounts receivable from subscribers, distributors, recoverable taxes contractual assets and other, net a) An analysis of accounts receivable by component at December 31, 2017 and 2018 is as follows:
|  | At December 31, |
|  | 2017 |  |  | 2018 |
Subscribers and distributors |  | Ps. | 178,722,706 |  |  | Ps. | 173,053,226 |
Telecommunications carriers for network interconnection and other services |  |  | 8,671,416 |  |  |  | 5,543,263 |
Recoverable taxes (i) |  |  | 40,477,188 |  |  |  | 46,706,298 |
Sundry debtors |  |  | 14,736,340 |  |  |  | 12,685,281 |
Contractual assets (Note 2i, a) |  |  | — |  |  |  | 34,718,749 |
Impairment of trade receivables |  |  | (39,044,925 | ) |  |  | (40,798,025 | )
Total net |  | Ps. | 203,562,725 |  |  | Ps. | 231,908,792 |
Non-current subscribers, distributors and contractual assets |  |  | 9,786,581 |  |  |  | 15,681,872 |
Total current subscribers, distributors and contractual assets |  | Ps. | 193,776,144 |  |  | Ps. | 216,226,920 |
(i) | In accordance with the favorable resolution obtained from the authorities, in 2018 the subsidiary Claro Brasil recognized a benefit for the exclusion of the Tax on the Circulation of Goods and the Provision of Services (Imposto sobre a Circulação de Mercadorias e Prestação de Serviços, or “ICMS “) in the calculation bases of the Social Integration Program (Social Integration Program, or” PIS “) and the Contribution for the Financing of Social Security (Contribution to or Financing of Social Security, or” COFINS “) in the amount total of Ps. 12,295,869, that includes interest of Ps. 6,127,656. The asset was recognized based on the certainty of obtaining the economic benefit.
b) Changes in the allowance for expected credit losses is as follows:
|  | For the years ended December 31, |
|  | 2016 |  |  | 2017 |  |  | 2018 |
Balance at beginning of year |  | Ps. | (27,495,158 | ) |  | Ps. | (37,351,677 | ) |  | Ps. | (39,044,925 | )
Increases recorded in expenses |  |  | (16,987,769 | ) |  |  | (20,766,362 | ) |  |  | (19,535,707 | )
Adjustment on initial application of IFRS 9 (Note 2i, b) |  |  | — |  |  |  | — |  |  |  | (2,400,783 | )
Write-offs |  |  | 12,587,567 |  |  |  | 17,713,992 |  |  |  | 15,497,254 |
Translation effect |  |  | (5,456,317 | ) |  |  | 1,359,122 |  |  |  | 4,686,136 |
Balance at end of year |  | Ps. | (37,351,677 | ) |  | Ps. | (39,044,925 | ) |  | Ps. | (40,798,025 | )
c) The following table shows the aging of accounts receivable at December 31, 2017 and 2018, for subscribers and distributors:
|  | Past due |
|  | Total |  |  | Unbilled services provided |  |  | a-30 days |  |  | 31-60 days |  |  | 61-90 days |  |  | Greater than 90 days |
December 31, 2017 |  |  | Ps. 178,722,706 |  |  |  | Ps. 78,384,174 |  |  |  | Ps. 46,758,825 |  |  |  | Ps. 6,780,671 |  |  |  | Ps. 4,375,188 |  |  |  | Ps. 42,423,848 |
December 31, 2018 |  |  | Ps. 173,053,226 |  |  |  | Ps. 62,623,654 |  |  |  | Ps. 46,816,302 |  |  |  | Ps. 6,315,277 |  |  |  | Ps. 4,168,952 |  |  |  | Ps. 53,129,041 |
d) The following table shows the accounts receivable from subscribers and distributors included in the impairments of trade receivables, as of December 31, 2017 and 2018:
|  | Total |  |  | 1-90 days |  |  | Greater than 90 days |
December 31, 2017 |  |  | Ps. 39,044,925 |  |  |  | Ps. 3,807,945 |  |  |  | Ps. 35,236,980 |
December 31, 2018 |  |  | Ps. 40,798,025 |  |  |  | Ps. 4,079,803 |  |  |  | Ps. 36,718,222 |
e) An analysis of contract assets and liabilities at December 31, 2018 is as follows:
|  | 2018 |
Contract Assets: |  |  |  |
Balance at the beginning of the year |  | Ps. | 29,640,953 |
Additions |  |  | 32,029,279 |
Disposals |  |  | (25,243,487 | )
Translation effect |  |  | (1,707,996 | )
Balance at the end of the year |  | Ps. | 34,718,749 |
Non-current contract assets |  | Ps. | 5,437,263 |
Current portion contracts assets |  | Ps. | 29,281,486 |

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- Definition The disclosure of trade and other receivables. [Refer: Trade and other receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_10_e&doctype=Standard -URIDate 2018-03-16 + Details
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