XML 131 R85.htm IDEA: XBRL DOCUMENT v3.19.1

Cash and Cash Equivalents - Addition Information (Detail) - MXN ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash and cash equivalents [abstract]
Deposits in margin accounts guarantees several obligations	$ 234	$ 196

X

- Definition

Deposits in margin accounts guarantees several obligations.

+ References

No definition available.

+ Details

Name:	cx_DepositsInMarginAccountsGuaranteesSeveralObligations
Namespace Prefix:	cx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	ifrs-full_CashAndCashEquivalentsAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration