XML 116 R80.htm IDEA: XBRL DOCUMENT
v3.22.1

Schedule of concession and amount to be paid (Details) R$ in Millions | 12 Months Ended
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Dec. 31, 2021 BRL (R$)
Irape Enterprise [Member] |
IfrsStatementLineItems [Line Items] |
Nominal value in 2019 | R$ 42
Present value in 2019 | R$ 21
Period of the concession | 03/2006 – 02/2035
Updating indexer | IGPM
Queimadao Consortium Enterprise [Member] |
IfrsStatementLineItems [Line Items] |
Nominal value in 2019 | R$ 12
Present value in 2019 | R$ 6
Period of the concession | 01/2004 – 12/2032
Updating indexer | IGPM

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- References No definition available. + Details
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Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | cig_
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Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | cig_
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Balance Type: | credit
Period Type: | instant

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Period Type: | duration

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- Details
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- Details
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Period Type: |