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Goodwill and Intangible Assets, Net - Additional Information (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Risk free rate | 4.25% | 4.79% | 3.58% | 1.82%
Increase in pre-tax discount rate | 1.00% |  |  |
Decrease in long-term growth rate | 1.00% |  |  |
Weighted average Operating EBITDA multiple | 9.7 |  |  |
Impairment of finite lived intangible assets |  | $ 7 |  |
Market risk premium percentage |  |  | 1.70% |
Stock volatility factor | 1.05 | 1.07 | 1.08 |
Percentage reduction in long term growth rate | 0.70% | 1.20% |  |
Weight of Debt | 21.10% | 22.50% | 27.00% |
Off set By Market Premium Factor | 6.00% | 5.90% |  |
Operating segments [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Impairment of finite lived intangible assets |  |  | $ 365 |
Cemex [Member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Funding cost percentage | 5.30% | 6.70% | 6.70% | 4.10%
Top of range [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Funding cost percentage | 5.30% |  |  |
Risk free rate | 5.50% |  |  |
Weighted average [member] | Cemex [Member] | Operating segments [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Discount rates | 0.70% | 1.20% |  | 2.00%
United States [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Sensitivity analyses Of discount rates | 4.50% |  |  |
Discount rates | 9.40% | 10.10% | 9.10% |
United States [member] | Operating segments [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Discount rates | 1.00% |  |  |
Impairment of finite lived intangible assets |  |  | $ 273 |
Spain [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Discount rates | 9.80% | 10.70% | 9.40% |
Spain [member] | Operating segments [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Impairment of finite lived intangible assets |  |  | $ 92 |
Colombia [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Sensitivity analyses Of discount rates | 4.50% |  |  |
Discount rates | 12.10% | 12.70% | 10.90% |

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