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Intangible Assets, Net and Goodwill - Summary of Analysis of Intangible Assets (Detail) - MXN ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Amortization of the year | $ (25,798,610) | $ (24,348,182) | $ (19,522,968)
Licenses and rights of use [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 113,304,386 | 116,031,264 | 90,449,251
Acquisitions | 4,227,244 | 12,347,051 | 9,129,949
Acquisitions in business combinations |  | 53,923 | 360,144
Disposals and other | 502,397 | (792,894) | 1,269,478
Amortization of the year | (11,347,089) | (11,879,489) | (10,255,271)
Effect of translation of foreign subsidiaries | (3,388,543) | (2,455,469) | 25,077,713
Balance at end of year | 103,298,395 | 113,304,386 | 116,031,264
Licenses and rights of use [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 247,413,824 | 242,739,362 | 175,295,775
Acquisitions | 4,227,244 | 12,347,051 | 9,129,949
Acquisitions in business combinations |  | 53,923 | 360,144
Disposals and other | 1,508,274 | (1,037,458) | 1,269,478
Effect of translation of foreign subsidiaries | (19,670,368) | (6,689,054) | 56,684,016
Balance at end of year | 233,478,974 | 247,413,824 | 242,739,362
Licenses and rights of use [member] | Accumulated depreciation [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | (134,109,438) | (126,708,098) | (84,846,524)
Disposals and other | (1,005,877) | 244,564 |
Amortization of the year | (11,347,089) | (11,879,489) | (10,255,271)
Effect of translation of foreign subsidiaries | 16,281,825 | 4,233,585 | (31,606,303)
Balance at end of year | (130,180,579) | (134,109,438) | (126,708,098)
Trademarks [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 9,937,807 | 12,566,893 | 11,300,306
Acquisitions | 159,958 | 127,823 |
Acquisitions in business combinations | 6,631 | 82,868 | 101,655
Disposals and other |  | 4,660 | (13,820)
Amortization of the year | (4,973,602) | (3,179,461) | (330,576)
Effect of translation of foreign subsidiaries | (463,589) | 335,024 | 1,509,328
Balance at end of year | 4,667,205 | 9,937,807 | 12,566,893
Trademarks [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 28,779,212 | 27,789,150 | 22,824,013
Acquisitions | 159,958 | 127,823 |
Acquisitions in business combinations | 6,631 | 82,868 | 101,655
Disposals and other |  | (29,804) | (13,820)
Effect of translation of foreign subsidiaries | (738,635) | 809,175 | 4,877,302
Balance at end of year | 28,207,166 | 28,779,212 | 27,789,150
Trademarks [member] | Accumulated depreciation [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | (18,841,405) | (15,222,257) | (11,523,707)
Disposals and other |  | 34,464 |
Amortization of the year | (4,973,602) | (3,179,461) | (330,576)
Effect of translation of foreign subsidiaries | 275,046 | (474,151) | (3,367,974)
Balance at end of year | (23,539,961) | (18,841,405) | (15,222,257)
Customer relationships [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 10,856,219 | 13,810,434 | 14,431,532
Acquisitions | 74,637 |  |
Acquisitions in business combinations | 15,556 | 512,667 | 1,904,503
Amortization of the year | (3,754,312) | (3,769,777) | (3,231,518)
Effect of translation of foreign subsidiaries | (410,569) | 302,895 | 705,917
Balance at end of year | 6,781,531 | 10,856,219 | 13,810,434
Customer relationships [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 26,985,714 | 26,245,508 | 18,394,407
Acquisitions | 74,637 |  |
Acquisitions in business combinations | 15,556 | 512,667 | 1,904,503
Disposals and other |  | (882,338) |
Effect of translation of foreign subsidiaries | (1,532,839) | 1,109,877 | 5,946,598
Balance at end of year | 25,543,068 | 26,985,714 | 26,245,508
Customer relationships [member] | Accumulated depreciation [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | (16,129,495) | (12,435,074) | (3,962,875)
Disposals and other |  | 882,338 |
Amortization of the year | (3,754,312) | (3,769,777) | (3,231,518)
Effect of translation of foreign subsidiaries | 1,122,270 | (806,982) | (5,240,681)
Balance at end of year | (18,761,537) | (16,129,495) | (12,435,074)
Software licenses [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 7,240,437 | 7,751,056 | 6,358,170
Acquisitions | 2,004,550 | 3,351,200 | 3,812,881
Acquisitions in business combinations | 3,006 |  | 18,504
Disposals and other | 1,772,238 | (485,449) |
Amortization of the year | (3,491,629) | (3,699,363) | (3,469,461)
Effect of translation of foreign subsidiaries | (924,147) | 322,993 | 1,030,962
Balance at end of year | 6,604,455 | 7,240,437 | 7,751,056
Software licenses [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 15,055,598 | 12,874,796 | 8,782,768
Acquisitions | 2,004,550 | 3,351,200 | 3,854,066
Acquisitions in business combinations | 3,006 |  | 26,871
Disposals and other | (905,610) | (1,698,118) | (829,680)
Effect of translation of foreign subsidiaries | (1,848,286) | 527,720 | 1,040,771
Balance at end of year | 14,309,258 | 15,055,598 | 12,874,796
Software licenses [member] | Accumulated depreciation [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | (7,815,161) | (5,123,740) | (2,424,598)
Acquisitions |  |  | (41,185)
Acquisitions in business combinations |  |  | (8,367)
Disposals and other | 2,677,848 | 1,212,669 | 829,680
Amortization of the year | (3,491,629) | (3,699,363) | (3,469,461)
Effect of translation of foreign subsidiaries | 924,139 | (204,727) | (9,809)
Balance at end of year | (7,704,803) | (7,815,161) | (5,123,740)
Content rights [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 2,200,777 | 2,209,799 | 2,205,781
Acquisitions | 850,779 | 2,099,084 | 2,242,556
Disposals and other |  | (258,795) | (218,669)
Amortization of the year | (2,231,978) | (1,820,092) | (2,236,141)
Effect of translation of foreign subsidiaries | (33,461) | (29,219) | 216,272
Balance at end of year | 786,117 | 2,200,777 | 2,209,799
Content rights [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 6,717,442 | 4,876,298 | 2,634,527
Acquisitions | 850,779 | 2,099,084 | 2,242,556
Disposals and other |  | (63,137) | (217,057)
Effect of translation of foreign subsidiaries | (18,512) | (194,803) | 216,272
Balance at end of year | 7,549,709 | 6,717,442 | 4,876,298
Content rights [member] | Accumulated depreciation [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | (4,516,665) | (2,666,499) | (428,746)
Disposals and other |  | (195,658) | (1,612)
Amortization of the year | (2,231,978) | (1,820,092) | (2,236,141)
Effect of translation of foreign subsidiaries | (14,949) | 165,584 |
Balance at end of year | (6,763,592) | (4,516,665) | (2,666,499)
Intangibles, net [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 143,539,626 | 152,369,446 | 124,745,040
Acquisitions | 7,317,168 | 17,925,158 | 15,185,386
Acquisitions in business combinations | 25,193 | 649,458 | 2,384,806
Disposals and other | 2,274,635 | (1,532,478) | 1,036,989
Amortization of the year | (25,798,610) | (24,348,182) | (19,522,967)
Effect of translation of foreign subsidiaries | (5,220,309) | (1,523,776) | 28,540,192
Balance at end of year | 122,137,703 | 143,539,626 | 152,369,446
Goodwill [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Balance at beginning of year | 151,463,232 | 152,632,635 | 137,113,716
Acquisitions | 1,455 |  |
Acquisitions in business combinations | 333,284 | 951,348 | 3,953,023
Disposals and other | (1,094,861) | (134,525) | (356,832)
Effect of translation of foreign subsidiaries | (5,136,613) | (1,986,226) | 11,922,728
Balance at end of year | $ 145,566,497 | $ 151,463,232 | $ 152,632,635

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