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v3.19.1

Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Additional Information (Detail) T in Thousands, $ in Millions, $ in Millions |  |  |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 27, 2018 MXN ($) | Sep. 27, 2018 USD ($) | Apr. 28, 2017 MXN ($) | Feb. 07, 2017 MXN ($) | Feb. 01, 2017 USD ($) | Feb. 01, 2017 MXN ($) $ / shares | Jan. 09, 2017 shares | Nov. 18, 2016 MXN ($) T | Nov. 18, 2016 USD ($) T | Sep. 12, 2016 MXN ($) T | Sep. 12, 2016 USD ($) T | May 26, 2016 MXN ($) | May 26, 2016 USD ($) | Apr. 30, 2018 MXN ($) | Jan. 31, 2017 MXN ($) | Jan. 31, 2017 USD ($) | Jun. 30, 2017 MXN ($) | Jun. 30, 2017 USD ($) | Dec. 31, 2018 MXN ($) | Dec. 31, 2017 MXN ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 MXN ($) GeographicalAreas | Dec. 31, 2018 USD ($) | Aug. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Jun. 30, 2017 USD ($) | Feb. 01, 2017 USD ($) | Jan. 31, 2017 USD ($) | Dec. 31, 2015 MXN ($)
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 194,779 | $ 195,474 |  | $ 206,319 |  |  |  |  |  |  | $ 184,156
Proportional write off of goodwill based on relative fair values |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 439 | 1,804 |  | $ 9,734 |  |  |  |  |  |  |
Number of geographical regions | GeographicalAreas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |  |  |  |
Procon Readymix Ltd [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 22 |  |  |  |  |
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 196 |  |  |  | $ 10 |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 244 |  |  |  | 12 |  |  |  |  |  |
Cimentos Vencemos Do Amazonas Ltda [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from divestiture | $ 580 | $ 31 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business | 234 | 12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Withholding tax of discontinued operations |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) on disposal | $ (140) | $ (7) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Heidelberg Cement Group [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,324 |  |  |  |  |  |  |  |  | $ 73 |  |  |
Proceeds from divestiture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 150 |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 399 | $ 22 |  |  |  |  |  |  |  |  |  |  |
Concrete Reinforced Pipe Manufacturing Business [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from divestiture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500 |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent consideration on divestiture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 40 |
Caribbean TCL [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,042 | 2,027 |  |  |  |  |  |  |  |  |
Mexico [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,371 | 7,371 |  |  |  |  |  |  |  |  |
Geographical regions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mexico |  |  |  |  |  |  |
United States [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 152,486 | 152,486 |  |  |  |  |  |  |  |  |
Geographical regions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | United States |  |  |  |  |  |  |
United States [member] | Concrete Reinforced Pipe Manufacturing Business [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,369 |  |  |  |  |  |  |  |  |  |  |  |  | $ 260 |
Gain (loss) on sale of business |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,083 | $ 148 |  |  |  |  |  |  |  |  |  |  |  |  |
Europe [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographical regions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Europe |  |  |  |  |  |  |
South, Central America and the Caribbean [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographical regions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | South, Central America and the Caribbean |  |  |  |  |  |  |
Asia, Middle East and Africa [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographical regions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Asia, Middle East and Africa |  |  |  |  |  |  |
Assets and liabilities classified as held for sale [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 439 |  |  |  | $ 22 |  |  |  |  |  |
Trinidad Cement Limited [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of assets acquired |  |  |  |  |  | $ 11,061 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 531 |  |
Share price | $ / shares |  |  |  |  |  | $ 4.15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt assumed |  |  |  | $ 2,354 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 113 |  |
Gain on Financial income and other items, net |  |  |  | 623 | $ 32 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net assets acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 249 |  |
Trinidad Cement Limited [member] | Mexican Peso [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rate |  |  |  |  |  | 20.83 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.83 |  |
Trinidad Cement Limited [member] | The Offer [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  | 69.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  | $ 1,791 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 86 |  |
Share price | $ / shares |  |  |  |  |  | $ 5.07 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trinidad Cement Limited [member] | Caribbean TCL [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39.50% |  |  |  |  |  |  |
Trinidad Cement Limited [member] | Caribbean TCL [member] | The Offer [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option to acquire, number of shares | shares |  |  |  |  |  |  | 132,616,942 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional ownership percentage acquired |  |  |  |  |  |  | 30.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
GCC [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from divestiture |  |  |  |  |  |  |  | $ 6,340 | $ 306 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business |  |  |  |  |  |  |  | 2,159 | 104 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) on disposal |  |  |  |  |  |  |  | $ 1,347 | $ 65 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual production capacity of cement plant sold | T |  |  |  |  |  |  |  | 537 | 537 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportional write off of goodwill based on relative fair values |  |  |  |  |  |  |  | $ 3,340 | $ 161 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Eagle Materials Inc [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,365 |  |  |  |  | $ 211 |  |  |  |
Proceeds from divestiture |  |  |  |  |  |  |  |  |  | $ 8,288 | $ 400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,694 | $ 188 |  |  |  |  |  |  |  |
Annual production capacity of cement plant sold | T |  |  |  |  |  |  |  |  |  | 730 | 730 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cementos Espaoles de Bombeo, S. de R.L. [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from divestiture |  |  | $ 1,649 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed assets sold |  |  | $ 309 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease term of facilities |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate initial amount of lease |  |  | $ 1,340 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contingent revenue |  |  | $ 557 |  |  |  |  |  |  |  |  |  |  | $ 25 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Siam City Cement Public Company Ltd. [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from divestiture |  |  |  |  |  |  |  |  |  |  |  | $ 1,450 | $ 70 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business |  |  |  |  |  |  |  |  |  |  |  | 424 | 24 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation gain (loss) on disposal |  |  |  |  |  |  |  |  |  |  |  | $ 122 | $ 7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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