XML 170 R134.htm IDEA: XBRL DOCUMENT
v3.22.1

The cash flows of the contracts containing a lease are, in their majority, indexed to the IPCA inflation index on an annual basis. Below is an analysis of maturity of lease contracts: (Details) - BRL (R$) R$ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
IfrsStatementLineItems [Line Items] |  |  |
Undiscounted values | R$ 663 |  |
Embedded interest | (419) |  |
Lease liabilities | 244 | R$ 227 | R$ 288
Not later than one year [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Undiscounted values | 65 |  |
Later than one year and not later than two years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Undiscounted values | 29 |  |
Later than two years and not later than three years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Undiscounted values | 29 |  |
Later than three years and not later than four years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Undiscounted values | 28 |  |
Later than four years and not later than five years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Undiscounted values | 28 |  |
Later than five years [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Undiscounted values | R$ 484 |  |

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- References No definition available. + Details
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Namespace Prefix: | cig_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | cig_IfrsStatementLineItems
Namespace Prefix: | cig_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2021-01-01 -Paragraph 47 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_47_b&doctype=Standard -URIDate 2021-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of undiscounted operating lease payments to be received. Operating lease is a lease that does not transfer substantially all the risks and rewards incidental to ownership of an underlying asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2021-01-01 -Paragraph 97 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_97&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_UndiscountedOperatingLeasePaymentsToBeReceived
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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- Details
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- Details
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