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The gain (loss) recognised on derecognition of financial instruments whose fair value previously could not be reliably measured. [Refer: Financial instruments, class [member]]

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The net gain arising from exchange differences recognised in profit or loss, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: Foreign exchange gain (loss)]

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The net loss arising from exchange differences recognised in profit or loss, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: Foreign exchange gain (loss)]

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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

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Financial Instruments - Additional Information - Derivative Financial Instruments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 30, 2023	Oct. 30, 2023
Disclosure of detailed information about financial instruments [line items]
Gains and (losses) related to recognition of changes in fair values of the derivative instruments	$ (19.0)	$ (5.0)	$ (6.0)
Mexican Peso Floating Rates [member]
Disclosure of detailed information about financial instruments [line items]
Payments on Contract	3.0
Currency swap contract [member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount						$ 335.0
Gain (loss) due to changes in estimated fair value	23.0
Reclassification adjustments on cash flow hedges, net of tax	5.0
Currency swap contract [member] \| Euro denominated [Member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount			750.0
Net foreign exchange loss			1.0
Net foreign exchange gain	70.0	8.0	10.0
Debt Instrument Settlement Gains	80.0
Foreign Exchange Options [Member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount	$ 300.0	500.0
Financial Income And Other Items [Member] \| Peso Denominated Value [Member]
Disclosure of detailed information about financial instruments [line items]
Derivative contracts maturity date	June 2025
Financial Income And Other Items [Member] \| Foreign Exchange Options [Member]
Disclosure of detailed information about financial instruments [line items]
Changes in the fair value of these instruments	$ 18.0	13.0	5.0
Financial Income And Other Items [Member] \| Foreign Exchange Options [Member] \| Peso Denominated Value [Member]
Disclosure of detailed information about financial instruments [line items]
Derivative contracts maturity date	December 2025
Fuel Price Forward Contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount	$ 110.0	136.0
Financial liabilities at estimated fair value	1.0	8.0
Gain (loss) due to changes in estimated fair value	6.0	25.0	22.0
Fuel Price Forward Contracts [member] \| Operating Expense [Member]
Disclosure of detailed information about financial instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	7.0	88.0	36.0
Fuel Price Forward Contracts [member] \| Financial Income And Other Items [Member]
Disclosure of detailed information about financial instruments [line items]
Changes in the fair value of these instruments	1.0
Fuel Price Forward Contracts [member] \| Cemex Brent Oil [Member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount	122.0
Net Investment Hedges [member] \| Forward Contract [Member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount	518.0		738.0
Net foreign exchange gain (loss)	(172.0)	96.0		$ 4.0
Net Investment Hedges [member] \| Capped Forwards With Option Contracts [Member] \| Peso Denominated Value [Member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount	458.0	99.0
Net foreign exchange loss	$ 54.0	2.0
Net Investment Hedges [member] \| Top of range [member] \| Forward Contract [Member] \| Peso Denominated Value [Member]
Disclosure of detailed information about financial instruments [line items]
BorrowingsMaturityPeriod	15 months
Net Investment Hedges [member] \| Bottom of range [member] \| Forward Contract [Member] \| Peso Denominated Value [Member]
Disclosure of detailed information about financial instruments [line items]
BorrowingsMaturityPeriod	1 month
Interest Rate Swap Contract [Member] \| Finance Expense [Member] \| Peso Floating Rates [Member]
Disclosure of detailed information about financial instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	$ 18.0	7.0	0.3
Interest Rate Swap Contract [Member] \| Loans from banks at floating interest rate [member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount	750.0	750.0
Financial assets at fair value through profit or loss					$ 5.0
Gain (loss) due to changes in estimated fair value	9.0	69.0	23.0
Reclassification adjustments on cash flow hedges, net of tax		39.0
Interest Rate Swap Contract [Member] \| Loans from banks at floating interest rate [member] \| Peso Floating Rates [Member]
Disclosure of detailed information about financial instruments [line items]
Gain (loss) due to changes in estimated fair value	15.0	3.0	15.0
Interest Rate Swap Contract [Member] \| Loans from banks at floating interest rate [member] \| Finance Expense [Member]
Disclosure of detailed information about financial instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	30.0
Interest Rate Swaps [member] \| Mexican Peso Floating Rates [member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial instrument, Notional amount	268.0
Financial assets at estimated fair value		15.0
Interest Rate Swaps [member] \| Loans from banks at floating interest rate [member] \| Finance Expense [Member]
Disclosure of detailed information about financial instruments [line items]
Reclassification adjustments on cash flow hedges, net of tax	$ 22.0	$ 2.0	$ 22.0