XML 63 R48.htm IDEA: XBRL DOCUMENT
v3.23.1

MARKETABLE SECURITIES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Marketable Securities |
Schedule of marketable securities |
Schedule of marketable securities |  |
| 2022 | 2021
Investments |  |
Current |  |
Bank certificates of deposit (CDBs) (1) | 191 | 101
Financial Notes (LFs) - Banks (2) | 1,140 | 1,417
Treasury Financial Notes (LFTs) (3) | 402 | 178
Others | 12 | 28
| 1,745 | 1,724
Non-current |  |
Bank certificates of deposit (CDBs) (1) | 127 | -
Financial Notes (LFs) - Banks (2) | - | 348
Debentures (4) | 7 | 5
Others | - | 1
| 134 | 354
| 1,879 | 2,078
(1) | Bank Certificates of Deposit (Certificados de Depósito Bancário, or CBDs), accrued interest varying between 103% to 104.4% of the CDI Rate (Interbank Rate for Interbank Certificates of Deposit or Certificados de Depósito Inter-bancário - CDIs) published by the Custody and Settlement Chamber (Câmara de Custódia e Liquidação, or Cetip) on December 31, 2022 (107.24% on December 31, 2021).
(2) | Bank Financial Notes (Letras Financeiras, or LFs) are fixed-rate fixed-income securities, issued by banks and that accrued interest a percentage of the CDI rate published by Cetip. The LFs had remuneration rates varying between 103.3% and 110.26% of the CDI rate on December 31, 2022 (105% and 130% on December 31, 2021).
(3) | Treasury Financial Notes (LFTs) are fixed-rate securities, their yield follows the daily changes in the Selic rate between the date of purchase and the date of maturity. The LFTs had remuneration rates varying between 13.65% and 13.88% in 2022 (9.12% and 9.50% in 2021).
(4) | Debentures are medium and long term debt securities, which give their holders a right of credit against the issuing company. The debentures have remuneration varying from TR+1% to 114.29% of the CDI Rate on December 31, 2022 (TR+1% to 109% of the CDI Rate on December 31, 2021).

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

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