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Income Taxes - Schedule of Reconciliation Between Actual Income Tax Expense and Amount Computed by Applying Statutory Tax Rate (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]      
Mexican statutory tax rate value 30.00% 30.00% 30.00%
Difference between accounting and tax expenses, net 35.80% 4.80% (18.40%)
Non-taxable sale of equity securities and fixed assets 3.40% (3.80%) 1.30%
Difference between book and tax inflation 28.20% 23.90% (7.10%)
Differences in the income tax rates in the countries where CEMEX operates (6.20%) 4.70% (0.90%)
Changes in deferred tax assets (59.70%) (48.70%) (9.60%)
Changes in provisions for uncertain tax positions (5.10%) 2.60% 0.20%
Others 0.70% 0.90% 1.80%
Effective consolidated income tax expense rate 27.10% 14.40% (2.70%)
Mexican statutory tax rate $ 231 $ 280 $ (391)
Difference between accounting and tax expenses, net 276 45 240
Non-taxable sale of equity securities and fixed assets 26 (35) (17)
Difference between book and tax inflation 217 223 92
Differences in the income tax rates in the countries where CEMEX operates (48) 44 12
Changes in deferred tax assets (460) (454) 125
Changes in provisions for uncertain tax positions (39) 24 (3)
Others 6 10 (22)
Effective consolidated income tax expense rate $ 209 $ 137 $ 36