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Business Combinations and Disposals - Purchase Allocation (Details) - MXN ($) $ in Millions | 12 Months Ended |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2024 | Sep. 30, 2024 | Mar. 31, 2023 | Feb. 28, 2023 | Dec. 31, 2022 | Oct. 31, 2022 | May 31, 2022 | Feb. 28, 2022 | Jan. 31, 2022
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Goodwill arising on acquisition |  | $ 0 |  |  |  |  |  |  |  |
Valora |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  | $ 2,988 |  |  |
Clients |  |  |  |  |  |  | 2,581 |  |  |
Inventory |  |  |  |  |  |  | 2,967 |  |  |
Other non-current assets | $ 325 |  |  |  |  |  | 7,581 |  |  |
Total assets |  |  |  |  |  |  | 46,562 |  |  |
Deferred tax liability | (1,887) |  |  |  |  |  | (1,325) |  |  |
Other liabilities |  |  |  |  |  |  | (35,055) |  |  |
Net assets acquired |  |  |  |  |  |  | 10,182 |  |  |
Goodwill arising on acquisition |  |  |  |  |  |  | 12,966 |  |  |
Business acquisition, consideration transferred |  |  |  |  | $ 673 |  | 23,148 |  |  |
Cash acquired |  |  |  |  |  |  | 1,971 |  |  |
Net cash paid |  |  |  |  |  |  | 21,177 |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | (10,482) |  |  |  |  |  |  |  |  |
Valora | Goodwill |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | 7,395 |  |  |  |  |  |  |  |  |
Valora | Franchise contracts |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | 447 |  |  |  |  |  |  |  |  |
Valora | Right of use assets |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | 2,743 |  |  |  |  |  |  |  |  |
Valora | Right of use assets |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  |  | 21,299 |  |  |
Valora | Trademark rights |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  |  | 8,699 |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | (7,617) |  |  |  |  |  |  |  |  |
Valora | Franchise contracts |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  |  | 447 |  |  |
Delek |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Current assets |  |  | $ 191 |  |  |  |  |  |  |
Inventory |  |  | 762 |  |  |  |  |  |  |
Other non-current assets |  |  | 1,216 |  |  |  |  |  |  |
Total assets |  |  | 5,857 |  |  |  |  |  |  |
Other liabilities |  |  | (910) |  |  |  |  |  |  |
Net assets acquired |  |  | 4,948 |  |  |  |  |  |  |
Goodwill arising on acquisition |  |  | 2,735 |  |  |  |  |  |  |
Business acquisition, consideration transferred |  |  | 7,683 |  |  |  |  |  |  |
Cash acquired |  |  | 166 |  |  |  |  |  |  |
Net cash paid |  |  | 7,517 |  |  |  |  |  |  |
Delek | Property, plant and equipment, net |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Total assets |  |  | $ 3,133 |  |  |  |  |  |  |
Valora Acquisitions One and Two |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Business acquisition, consideration transferred |  |  |  |  |  |  | $ 22,475 |  |  |
Sigma Supply |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  | $ 132 |  |
Accounts receivable |  |  |  |  |  |  |  | 1,252 |  |
Inventory |  |  |  |  |  |  |  | 1,206 |  |
Other non-current assets |  |  |  |  |  |  |  | 860 |  |
Total assets |  |  |  |  |  |  |  | 7,351 |  |
Other liabilities |  |  |  |  |  |  |  | (2,104) |  |
Net assets acquired |  |  |  |  |  |  |  | 5,247 |  |
Goodwill arising on acquisition |  |  |  |  |  |  |  | 2,138 |  |
Business acquisition, consideration transferred |  |  |  |  |  |  |  | 7,385 |  |
Cash acquired |  |  |  |  |  |  |  | 5 |  |
Net cash paid |  |  |  |  |  |  |  | 7,380 |  |
Increase (decrease) in amounts allocated to assets in acquisition | (4,635) |  |  |  |  |  |  |  |  |
Sigma Supply | Goodwill |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | 3,824 |  |  |  |  |  |  |  |  |
Sigma Supply | Trademark rights |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  |  |  | 8 |  |
Increase (decrease) in amounts allocated to assets in acquisition | (8) |  |  |  |  |  |  |  |  |
Sigma Supply | Customer relationships |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  |  |  | $ 3,893 |  |
Increase (decrease) in amounts allocated to assets in acquisition | (3,893) |  |  |  |  |  |  |  |  |
CVI Refrigerants Ltda. |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  | $ 615
Other non-current assets |  |  |  |  |  |  |  |  |  | 972
Total assets |  |  |  |  |  |  |  |  |  | 2,481
Other liabilities |  |  |  |  |  |  |  |  |  | (731)
Net assets acquired |  |  |  |  |  |  |  |  |  | 1,750
Goodwill arising on acquisition |  |  |  |  |  |  |  |  |  | 197
Business acquisition, consideration transferred |  |  |  |  |  |  |  |  |  | 1,947
Consideration not paid on acquisition date |  |  |  |  |  |  |  |  |  | (186)
Consideration paid in acquisition date, net |  |  |  |  |  |  |  |  |  | 1,761
Cash acquired |  |  |  |  |  |  |  |  |  | 104
Net cash paid |  |  |  |  |  |  |  |  |  | 1,657
CVI Refrigerants Ltda. | Goodwill |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  | $ 1,923 |  |  |  |
CVI Refrigerants Ltda. | Distribution rights |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  |  |  |  |  | 894
CVI Refrigerants Ltda Acquisition One and Two |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Business acquisition, consideration transferred |  |  |  |  |  |  |  |  |  | $ 1,947
Net Pay S.A.P.I de C.V. |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  | $ 271 |  |  |  |  |  |
Other non-current assets |  |  |  | 97 |  |  |  |  |  |
Total assets |  |  |  | 727 |  |  |  |  |  |
Other liabilities |  |  |  | (223) |  |  |  |  |  |
Net assets acquired |  |  |  | 504 |  |  |  |  |  |
Goodwill arising on acquisition |  |  |  | 3,918 |  |  |  |  |  |
Business acquisition, consideration transferred |  |  |  | 4,422 |  |  |  |  |  |
Consideration not paid on acquisition date |  |  |  | (596) |  |  |  |  |  |
Cash acquired |  |  |  | 39 |  |  |  |  |  |
Net cash paid |  |  |  | 3,787 |  |  |  |  |  |
Net Pay S.A.P.I de C.V. | Trademark rights |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  | 26 |  |  |  |  |  |
Net Pay S.A.P.I de C.V. | Customer relationships |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  | 188 |  |  |  |  |  |
Net Pay S.A.P.I de C.V. | Technology cost |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  | $ 145 |  |  |  |  |  |
OK Market |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  | $ 463 |
Other non-current assets |  |  |  |  |  |  |  |  | 1,238 |
Total assets |  |  |  |  |  |  |  |  | 1,701 |
Other liabilities |  |  |  |  |  |  |  |  | (1,055) |
Net assets acquired |  |  |  |  |  |  |  |  | 646 |
Goodwill arising on acquisition |  |  |  |  |  |  |  |  | 623 |
Business acquisition, consideration transferred |  |  |  |  |  |  |  |  | 1,269 |
Cash acquired |  |  |  |  |  |  |  |  | 6 |
Net cash paid |  |  |  |  |  |  |  |  | $ 1,263 |
Atra, Hughes, Sunbelt, H.T. Berry, and Other Smaller Acquistions |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  | 2,103 |  |  |  |
Other non-current assets |  |  |  |  |  | 909 |  |  |  |
Total assets |  |  |  |  |  | 4,295 |  |  |  |
Other liabilities |  |  |  |  |  | (1,535) |  |  |  |
Net assets acquired |  |  |  |  |  | 2,760 |  |  |  |
Goodwill arising on acquisition |  |  |  |  |  | 5,443 |  |  |  |
Business acquisition, consideration transferred |  |  |  |  |  | 8,203 |  |  |  |
Cash acquired |  |  |  |  |  | 85 |  |  |  |
Net cash paid |  |  |  |  |  | 8,118 |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | (1,783) |  |  |  |  |  |  |  |  |
Atra, Hughes, Sunbelt, H.T. Berry, and Other Smaller Acquistions | Goodwill |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | 1,054 |  |  |  |  |  |  |  |  |
Atra, Hughes, Sunbelt, H.T. Berry, and Other Smaller Acquistions | Trademark rights |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  | 14 |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | (14) |  |  |  |  |  |  |  |  |
Atra, Hughes, Sunbelt, H.T. Berry, and Other Smaller Acquistions | Customer relationships |  |  |  |  |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |  |  |  |  |
Identifiable intangible assets recognised as of acquisition date |  |  |  |  |  | $ 1,269 |  |  |  |
Increase (decrease) in amounts allocated to assets in acquisition | $ (1,269) |  |  |  |  |  |  |  |  |

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