XML 219 R173.htm IDEA: XBRL DOCUMENT
v3.19.1

Commitments - Summary of Contractual Obligations (Parenthetical) (Detail) $ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 MXN ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 MXN ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 MXN ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2018 USD ($)
Disclosure of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |
Future minimum lease payments | $ 2,396 |  |  |  |  |  | $ 122
Rental expense | $ 3,493 | $ 185 | $ 2,252 | $ 115 | $ 2,507 | $ 121 |
Estimated annual benefit payment period | Next 10 years | Next 10 years | Next 10 years | Next 10 years |  |  |
1-3 years [Member] |  |  |  |  |  |  |
Disclosure of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |
Future minimum lease payments | $ 1,450 |  |  |  |  |  | 74
3-5 Years [Member] |  |  |  |  |  |  |
Disclosure of Detailed Information About Borrowings [Line Items] |  |  |  |  |  |  |
Future minimum lease payments | $ 276 |  |  |  |  |  | $ 14

X
- Definition Benefits payments for next ten years. + References No definition available. + Details
Name: | cx_BenefitsPaymentsForNextTenYears
Namespace Prefix: | cx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Future minimum lease payments. + References No definition available. + Details
Name: | cx_FutureMinimumLeasePayments
Namespace Prefix: | cx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense recognised on rental activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_85&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_RentalExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |