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Business combinations, acquisitions, sale and non-controlling interest (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure of detailed information about business combination [line items] |
Summary of Selected Financial Data From Consolidated Statements of Financial Position | Selected financial data from the consolidated statements of financial position
|  | December 31, |
|  | 2018 |  |  | 2019 |
Assets: |  |  |  |  |  |  |  |
Current assets |  | Ps. | 29,854,542 |  |  | Ps. | 29,516,038 |
Non-current assets |  |  | 131,407,408 |  |  |  | 137,724,390 |
Total assets |  | Ps. | 161,261,950 |  |  | Ps. | 167,240,428 |
Liabilities and equity: |  |  |  |  |  |  |  |
Current liabilities |  | Ps. | 36,822,034 |  |  | Ps. | 34,608,254 |
Non-current liabilities |  |  | 80,023,800 |  |  |  | 89,711,288 |
Total liabilities |  |  | 116,845,834 |  |  |  | 124,319,542 |
Equity attributable to equity holders of the parent |  |  | 22,621,625 |  |  |  | 21,864,132 |
Non-controlling interest |  |  | 21,794,491 |  |  |  | 21,056,754 |
Total equity |  | Ps. | 44,416,116 |  |  | Ps. | 42,920,886 |
Total liabilities and equity |  | Ps. | 161,261,950 |  |  | Ps. | 167,240,428 |
Summary of Consolidated Statements of Comprehensive Income | Summarized consolidated statements of comprehensive income
|  | For the year ended December 31, |
|  | 2017 |  |  | 2018 |  |  | 2019 |
Operating revenues |  | Ps. | 93,644,173 |  |  | Ps. | 100,716,444 |  |  | Ps. | 98,420,289 |
Operating costs and expenses |  |  | 86,920,692 |  |  |  | 95,984,880 |  |  |  | 89,732,428 |
Operating income |  | Ps. | 6,723,481 |  |  | Ps. | 4,731,564 |  |  | Ps. | 8,687,861 |
Net income |  | Ps. | 5,656,132 |  |  | Ps. | 3,809,694 |  |  | Ps. | 5,051,145 |
Total comprehensive income |  | Ps. | 7,737,797 |  |  | Ps. | 5,047,838 |  |  | Ps. | 1,466,783 |
Net income attributable to: |  |  |  |  |  |  |  |  |  |  |  |
Equity holders of the parent |  | Ps. | 2,884,627 |  |  | Ps. | 1,942,944 |  |  | Ps. | 2,565,733 |
Non-controlling interest |  |  | 2,771,505 |  |  |  | 1,866,750 |  |  |  | 2,485,412 |
|  | Ps. | 5,656,132 |  |  | Ps. | 3,809,694 |  |  | Ps. | 5,051,145 |
Comprehensive income attributable to: |  |  |  |  |  |  |  |  |  |  |  |
Equity holders of the parent |  | Ps. | 3,978,263 |  |  | Ps. | 2,574,397 |  |  | Ps. | 748,059 |
Non-controlling interest |  |  | 3,759,534 |  |  |  | 2,473,441 |  |  |  | 718,724 |
|  | Ps. | 7,737,797 |  |  | Ps. | 5,047,838 |  |  | Ps. | 1,466,783 |
ClaroTelefnica Moviles Guatemala SA [Member] |
Disclosure of detailed information about business combination [line items] |
Summary of Financial Statements and the Values of the Assets Acquired and Liabilities | The purchase accounting is substantially completed as of the date of the financial statements and the values of the assets acquired and liabilities assumed are as follows:
|  | 2019 Provisional amounts at the acquisition date |
Current assets |  |  | Ps. 1,214,178 |
Other non-current assets |  |  | 252,469 |
Intangible assets (excluding goodwill) |  |  | 676,884 |
Property, plant and equipment |  |  | 5,757,958 |
Rights-of-use |  |  | 2,331,029 |
Total assets acquired |  |  | 10,232,518 |
Accounts payable |  |  | 4,579,590 |
Other liabilities |  |  | 2,338,592 |
Total liabilities assumed |  |  | 6,918,182 |
Fair value of assets acquired a nd liabilities assumed , net |  |  | 3,314,336 |
Acquisition price |  |  | 5,946,787 |
Provisional goodwill |  |  | Ps. 2,632,451 |
Nextel Telecomunicacoes Ltda [member] |
Disclosure of detailed information about business combination [line items] |
Summary of Financial Statements and the Values of the Assets Acquired and Liabilities | The provisional purchase accounting as of December 31, 2019, is as follows:
|  | 2019 Provisional amounts at the acquisition date |
Current assets |  |  | Ps. 3,624,576 |
Other non-current assets |  |  | 4,805,319 |
Intangible assets (excluding goodwill) |  |  | 7,167,455 |
Property, plant and equipment |  |  | 5,161,676 |
Rights-of-use |  |  | 7,337,478 |
Total assets acquired |  |  | 28,096,504 |
Accounts payable |  |  | 14,036,438 |
Other liabilities |  |  | 14,953,685 |
Total liabilities assumed |  |  | 28,990,123 |
Fair value of assets acquired a nd liabilities assumed , net |  |  | (893,619 | )
Acquisition Price |  |  | 7,335,045 |
Provisional goodwill |  |  | Ps. 8,228,664 |

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