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Equity - Summary of Capital Stock Prior To and Immediately After Stock Split (Detail) | 12 Months Ended
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Dec. 31, 2020 shares
Fomento Economico Mexicano S.A.B. de C.V. |
Disclosure of capital stock [Line Items] |
Ownership Percentage | 47.20%
Percentage of ordinary shares with full voting rights | 56.00%
The Coca-Cola Company |
Disclosure of capital stock [Line Items] |
Ownership Percentage | 27.80%
Percentage of ordinary shares with full voting rights | 32.90%
Major Ordinary Share Transactions Prior to Stock Split |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 2,100,832,262
Ownership Percentage | 100.00%
Percentage of ordinary shares with full voting rights | 100.00%
Major Ordinary Share Transactions Prior to Stock Split | Series L shares, without par value |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 525,208,065
Ownership Percentage | 25.00%
Percentage of voting equity interests acquired | 0.00%
Major Ordinary Share Transactions Prior to Stock Split | Fomento Economico Mexicano S.A.B. de C.V. | A |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 992,078,519
Ownership Percentage | 47.22%
Percentage of ordinary shares with full voting rights | 62.96%
Major Ordinary Share Transactions Prior to Stock Split | The Coca-Cola Company | D |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 583,545,678
Ownership Percentage | 27.78%
Percentage of ordinary shares with full voting rights | 37.04%
Major Ordinary Share Transactions After Stock Split |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 16,806,658,096
Ownership Percentage | 100.00%
Percentage of ordinary shares with full voting rights | 100.00%
Major Ordinary Share Transactions After Stock Split | B |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 1,575,624,195
Ownership Percentage | 9.38%
Percentage of voting equity interests acquired | 11.11%
Major Ordinary Share Transactions After Stock Split | Series L shares, without par value |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 2,626,040,325
Ownership Percentage | 15.63%
Percentage of voting equity interests acquired | 0.00%
Major Ordinary Share Transactions After Stock Split | Fomento Economico Mexicano S.A.B. de C.V. | A |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 7,936,628,152
Ownership Percentage | 47.22%
Percentage of ordinary shares with full voting rights | 55.97%
Major Ordinary Share Transactions After Stock Split | The Coca-Cola Company | D |
Disclosure of capital stock [Line Items] |
Outstanding shares (in shares) | 4,668,365,424
Ownership Percentage | 27.78%
Percentage of ordinary shares with full voting rights | 32.92%

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