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v3.21.1

Non-Controlling Interest in Consolidated Subsidiaries - Rollforward (Details) $ in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2018 MXN ($)
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Beginning Balance |  | $ 325,751 |  |
Consolidated net income | $ 188 | 3,756 | $ 28,048 | $ 33,079
Total other comprehensive income | (369) | (7,321) | (12,966) | (13,293)
Remeasurements of the net defined benefit liability | (24) | (474) | (1,090) | 551
Dividends declared and paid |  | (15,884) | (13,637) | (12,933)
Issuance (purchase) of share-based compensation plans |  | (339) | 21 | 73
Other acquisitions and remeasurements |  | 1,298 | 32 |
Derecognition upon disposal of controlling interest in Philippines |  |  |  | (11,140)
Ending Balance | $ 15,442 | 307,187 | 325,751 |
IAS 29 [member] |  |  |  |
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Beginning Balance |  |  |  | 2,687
Total controlling interest [member] |  |  |  |
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Beginning Balance |  | 251,989 |  |
Consolidated net income |  | (1,930) | 20,699 | 23,990
Dividends declared and paid |  | (10,360) | (9,692) | (9,220)
Issuance (purchase) of share-based compensation plans |  | (275) | 33 | 42
Other acquisitions and remeasurements |  | (79) |  |
Ending Balance |  | 237,743 | 251,989 |
Total controlling interest [member] | Synergy [Member] |  |  |  |
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Other acquisitions and remeasurements |  | 79 |  |
Total controlling interest [member] | IAS 29 [member] |  |  |  |
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Beginning Balance |  |  |  | 1,269
Non-controlling interest [member] |  |  |  |
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Beginning Balance |  | 73,762 | 78,489 | 86,621
Consolidated net income |  | 5,686 | 7,349 | 9,089
Total other comprehensive income |  | (5,793) | (4,552) | (4,080)
Exchange differences on translating foreign operations |  | (5,958) | (3,833) | (4,016)
Remeasurements of the net defined benefit liability |  | (169) | (271) | 155
Fair value changes |  | 334 | (448) | (219)
Dividends declared and paid |  | (5,524) | (3,945) | (3,713)
Issuance (purchase) of share-based compensation plans |  | (64) | (12) | 31
Acquisitions of non-controlling interest |  | 1,298 | 3,530 |
Other acquisitions and remeasurements |  | 1,377 | 32 | 413
Derecognition upon disposal of controlling interest in Philippines |  |  |  | (11,140)
Recognition of non-controlling interest upon consolidation of CCFPI |  |  |  | (11,140)
Ending Balance |  | $ 69,444 | 73,762 | 78,489
Non-controlling interest [member] | Accounting standard adoption effects [member] |  |  |  |
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Beginning Balance |  |  | $ (69) | (150)
Ending Balance |  |  |  | (69)
Non-controlling interest [member] | IAS 29 [member] |  |  |  |
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |  |  |  |
Beginning Balance |  |  |  | $ 1,418

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