XML 198 R191.htm IDEA: XBRL DOCUMENT v3.8.0.1

Related Party Transactions - Summary of Cemig is Provider of Surety or Guarantee of Loans, Financings and Debentures of Related Parties (Detail) R$ in Millions	12 Months Ended
	Dec. 31, 2017 BRL (R$)
Disclosure of transactions between related parties [line items]
Related party transaction amount	R$ 5,928
Norte Energia S.A [Member]
Disclosure of transactions between related parties [line items]
Related party	Norte Energia ('Nesa')
Relationship	Affiliated
Type	Surety
Objective	Financing
Expiration	2042
Related party transaction amount	R$ 2,507
Light [member]
Disclosure of transactions between related parties [line items]
Related party	Light
Relationship	Jointly-controlled entity
Type	Counter-guarantee
Objective	Financing
Expiration	2042
Related party transaction amount	R$ 684
Santo Antnio Energia S.A. [Member]
Disclosure of transactions between related parties [line items]
Related party	Santo Antônio Energia S.A. (Saesa)
Relationship	Jointly-controlled entity
Type	Surety
Objective	Financing
Expiration	2034
Related party transaction amount	R$ 1,946
Santo Antnio Energia S.A. One [Member]
Disclosure of transactions between related parties [line items]
Related party	Santo Antônio Energia S.A. (Saesa)
Relationship	Jointly-controlled entity
Type	Surety
Objective	Debentures
Expiration	2037
Related party transaction amount	R$ 783
Centroeste [member]
Disclosure of transactions between related parties [line items]
Related party	Centroeste
Relationship	Jointly-controlled entity
Type	Surety
Objective	Financing
Expiration	2023
Related party transaction amount	R$ 8

X

- Definition

The description of the nature of the related party relationships. [Refer: Related parties [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2017-01-01
-Paragraph 18
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_18&doctype=Standard
-URIDate 2017-03-09

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- Definition

The description of related party transactions. [Refer: Related parties [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2017-01-01
-Paragraph 18
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_18&doctype=Standard
-URIDate 2017-03-09

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- 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.

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- Definition

Description of type of guarantee.

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No definition available.

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Balance Type:	na
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- Definition

Expiration year

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- Definition

Name of related party

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- Definition

Related Party Transaction Amounts Of Transaction1

+ References

No definition available.

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- Details

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- Details

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- Details

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