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Business Combinations, Discontinued Operations, Sale of Other Disposal Groups and Selected Financial Information by Reportable Segment and Line of Business - Summary of Condensed Combined Financial Information of Balance Sheet (Detail) - MXN ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of Discontinued Operations [line items] |  |
Total assets of the disposal group | $ 2,100 | $ 1,378
Total liabilities directly related to disposal group | 314 | 0
Total net assets of disposal group | 1,786 | $ 1,378
France [member] |  |
Disclosure of Discontinued Operations [line items] |  |
Current assets | 189 |
Non-current assets | 763 |
Total assets of the disposal group | 952 |
Current liabilities | 211 |
Non-current liabilities | 103 |
Total liabilities directly related to disposal group | 314 |
Total net assets of disposal group | $ 638 |

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