XML 122 R49.htm IDEA: XBRL DOCUMENT
v3.21.1

Components of other comprehensive loss (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Text block [abstract] |
Summary of Movement on the Components of the Other Comprehensive Loss | The movement on the components of the other comprehensive (loss) income for the years ended December 31, 2018, 2019 and 2020 is as follows:
|  | For the years ended December 31, |
|  | 2018 |  |  | 2019 |  |  | 2020 |
Controlling interest: |  |  |  |  |  |  |  |  |  |  |  |
Unrealized (loss) gain on equity investments at fair value, net of deferred taxes |  |  | (3,765,688 | ) |  |  | 883,408 |  |  |  | (1,952,414 | )
Translation effect of foreign entities |  |  | (61,223,458 | ) |  |  | (34,010,066 | ) |  |  | (13,558,774 | )
Remeasurement of defined benefit plan, net of deferred taxes |  |  | 652,722 |  |  |  | (29,153,554 | ) |  |  | (10,026,454 | )
Assets revaluation surplus net of deferred taxes |  |  | — |  |  |  | — |  |  |  | 64,835,155 |
Non-controlling interest of the items above |  |  | (2,986,018 | ) |  |  | (1,908,304 | ) |  |  | 14,165,249 |
Other comprehensive (loss) income |  |  | Ps.(67,322,442 | ) |  |  | Ps.(64,188,516 | ) |  |  | Ps.53,462,762 |

X
- Definition Disclosure of detail infprmation of components of other comprehensive loss income explanatory. + References No definition available. + Details
Name: | amx_DisclosureOfDetailInfprmationOfComponentsOfOtherComprehensiveLossIncomeExplanatory
Namespace Prefix: | amx_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block [abstract] + References No definition available. + Details
Name: | amx_TextBlockAbstract
Namespace Prefix: | amx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration