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Assets Held For Sale and Other Current Assets - Additional Information (Detail) $ in Millions, $ in Millions | Dec. 31, 2018 MXN ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 MXN ($)
--- | --- | --- | ---
Asset held for sale and discontinued operations [line items] |  |  |
Cash | $ 5,071 |  | $ 9,292
CEMEX Colombia S.A [member] |  |  |
Asset held for sale and discontinued operations [line items] |  |  |
Cash | 236 | $ 12 |
Commercial dispute claim amount | $ 39 | $ 2 |

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