XML 249 R228.htm IDEA: XBRL DOCUMENT v3.21.1

33. INSURANCE (Details Narrative) R$ in Millions	12 Months Ended
	Dec. 31, 2020 BRL (R$)
Cemig distribuicao [member]
Disclosure of types of insurance contracts [line items]
Maximum indemnity limit	R$ 231
Cemig distribuicao [member] | Operational risk [member]
Disclosure of types of insurance contracts [line items]
Expense arising from other energy distribution equipment	1,000	[1]
Cemig Geracao E Transmissao [member] | Operational risk [member]
Disclosure of types of insurance contracts [line items]
Expense arising from other energy distribution equipment	R$ 1,000
[1] Maximum indemnity limit: R$231.

X

- Definition

Maximum indemnity limit of insurance contract.

+ References

No definition available.

+ Details

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Namespace Prefix:	cig_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

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Namespace Prefix:	ifrs-full_
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Balance Type:	na
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X

- Definition

The amount of expense arising from insurance contracts. [Refer: Types of insurance contracts [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 4
-IssueDate 2020-01-01
-Paragraph 37
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2020-en-b&anchor=para_37_b&doctype=Standard&book=b
-URIDate 2020-01-01

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- Details

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Namespace Prefix:
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- Details

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- Details

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