XML 69 R54.htm IDEA: XBRL DOCUMENT
v3.23.1

CONCESSION CONTRACT ASSETS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Concession Contract Assets |
Schedule of detailed information about concession contract assets |
Schedule of detailed information about concession contract assets |  |
| 2022 | 2021
Distribution - Infrastructure assets under construction | 1,850 | 1,927
Gas - Infrastructure assets under construction | 117 | 95
Transmission - National Grid (‘BNES’ - Basic Network of the Existing System) – Law 12,783/13 | 1,927 | 2,011
Transmission - Assets remunerated by tariff | 2,810 | 2,347
| 6,704 | 6,380
Current | 728 | 600
Non-current | 5,976 | 5,780
Schedule of contract assets |
Schedule of contract assets |  |  |  |
| Transmission | Distribution | Gas | Total
Balance on December 31, 2019 | 3,076 | 740 | 68 | 3,884
Additions | 201 | 1,346 | 50 | 1,597
Inflation adjustment | 438 | - | - | 438
Results of the Periodic Tariff Revision | 552 | - | - | 552
Amounts received | (623) | - | - | (623)
Disposals | (7) | - | (2) | (9)
Transfers to financial assets | - | (60) | - | (60)
Transfers to intangible assets | - | (883) | (23) | (906)
Contract assets arising from business combination | 108 | - | - | 108
Impairment | - | (1) | - | (1)
Balance on December 31, 2020 | 3,745 | 1,142 | 93 | 4,980
Additions | 252 | 1,757 | 50 | 2,059
Inflation adjustment | 660 | - | - | 660
Results of the Periodic Tariff Revision | 237 | - | - | 237
Amounts received | (612) | - | - | (612)
Disposals | (5) | - | (3) | (8)
Others additions | - | - | 6 | 6
Transfers to financial assets | - | (110) | - | (110)
Transfers to intangible assets | - | (851) | (51) | (902)
Contract assets arising from business combination | 81 | - | - | 81
Provision for Impairment | - | (11) | - | (11)
Balance on December 31, 2021 | 4,358 | 1,927 | 95 | 6,380
Additions | 407 | 3,098 | 61 | 3,566
Inflation adjustment | 575 | - | - | 575
Amounts received | (608) | - | - | (608)
Disposals | - | - | (3) | (3)
Others additions | 5 | - | - | 5
Transfers to financial assets | - | (762) | - | (762)
Transfers to intangible assets | - | (2,412) | (36) | (2,448)
Provision for Impairment | - | (1) | - | (1)
Balance on December 31, 2022 | 4,737 | 1,850 | 117 | 6,704
Schedule of concession contracts |
Schedule of concession contracts |  |
| 2022 | 2021
Current |  |
Concession contract - 004/05 (d) | 29 | 27
Concession contract - 079/00 (b) | 47 | 39
Concession contract - 006/11 (c) | 8 | 7
Concession contract - 006/97 (a) |  |
National Grid (‘BNES’ - Basic Network of the Existing System) | 408 | 318
National Grid - new facilities (RBNI) | 236 | 209
| 728 | 600
Non-current |  |
Concession contract - 004/05 (d) | 81 | 89
Concession contract - 079/00 (b) | 143 | 152
Concession contract - 006/11 (c) | 85 | 74
Concession contract - 006/97 (a) |  |
National Grid (‘BNES’ - Basic Network of the Existing System) | 1,519 | 1,694
National Grid - new facilities (RBNI) | 2,182 | 1,749
| 4,010 | 3,758
| 4,738 | 4,358

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

X
- References No definition available. + Details
Name: | cig_DisclosureOfDetailedInformationAboutContractAssetsExplantory
Namespace Prefix: | cig_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | cig_DisclosureOfMovementInContractAssetsExplanatory
Namespace Prefix: | cig_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for service concession arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name SIC -Number 29 -IssueDate 2022-03-24 -Section Consensus -URI https://taxonomy.ifrs.org/xifrs-link?type=SIC&num=29&code=ifrs-tx-2022-en-r&doctype=Standard&dita_xref=SIC29_g6-7__SIC29_g6-7_TI -URIDate 2022-03-24 + Details
Name: | ifrs-full_DisclosureOfServiceConcessionArrangementsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration