XML 81 R108.htm IDEA: XBRL DOCUMENT v3.20.1

11. INCOME AND SOCIAL CONTRIBUTION TAXES (Details Narrative)	12 Months Ended
	Dec. 31, 2019
Income And Social Contribution Taxes
Income tax and Social Contribution tax rate	34.00%
Income tax rate	25.00%
Social contribution tax rate	9.00%

X

- References

No definition available.

+ Details

Name:	cig_IncomeAndSocialContributionTaxesDetailNarrativeAbstract
Namespace Prefix:	cig_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Income tax expense and social contribution tax rate

+ References

No definition available.

+ Details

Name:	cig_IncomeTaxExpenseAndSocialContributionTaxRate
Namespace Prefix:	cig_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Social contribution tax rate.

+ References

No definition available.

+ Details

Name:	cig_SocialContributionTaxRate
Namespace Prefix:	cig_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The applicable income tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2019-01-01
-Paragraph 81
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_c_ii&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_ApplicableTaxRate
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration