XML 151 R144.htm IDEA: XBRL DOCUMENT v3.8.0.1

Loans, Financings and Debentures - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Dec. 05, 2017	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Percentage of hedge transaction cost	150.50%
Eurobonds [member]
Disclosure of detailed information about borrowings [line items]
Eurobond issued		$ 1,000
Interest rate		9.25%
Maturity		2024

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The maturity of borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard
-URIDate 2017-03-09

+ Details

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

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

Euro bonds issued

+ References

No definition available.

+ Details

Name:	xcmig_EuroBondsIssued
Namespace Prefix:	xcmig_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage of hedge transaction cost

+ References

No definition available.

+ Details

Name:	xcmig_PercentageOfHedgeTransactionCost
Namespace Prefix:	xcmig_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=xcmig_EurobondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: