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v3.22.1

COMMITMENTS (Tables) | 12 Months Ended
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Dec. 31, 2021
Schedule of detailed information about contractual obligations and commitments | Cemig and its subsidiaries have contractual obligations and commitments as follows: Schedule of detailed information about contractual obligations and commitments
|  | 2022 |  | 2023 |  | 2024 |  | 2025 |  | 2026 |  | After 2027 |  | Total
Purchase of energy from Itaipu |  |  | 1,530 |  |  |  | 1,577 |  |  |  | 1,577 |  |  |  | 1,577 |  |  |  | 1,576 |  |  |  | 31,536 |  |  |  | 39,373 |
Purchase of energy – auctions |  |  | 3,823 |  |  |  | 3,341 |  |  |  | 3,553 |  |  |  | 3,356 |  |  |  | 3,033 |  |  |  | 44,839 |  |  |  | 61,945 |
Purchase of energy – ‘bilateral contracts’ |  |  | 332 |  |  |  | 332 |  |  |  | 333 |  |  |  | 222 |  |  |  | 68 |  |  |  | 54 |  |  |  | 1,341 |
Quotas of Angra 1 and Angra 2 |  |  | 256 |  |  |  | 263 |  |  |  | 265 |  |  |  | 264 |  |  |  | 264 |  |  |  | 5,314 |  |  |  | 6,626 |
Transport of energy from Itaipu |  |  | 215 |  |  |  | 218 |  |  |  | 222 |  |  |  | 159 |  |  |  | 92 |  |  |  | 429 |  |  |  | 1,335 |
Other energy purchase contracts |  |  | 5,072 |  |  |  | 4,287 |  |  |  | 3,764 |  |  |  | 3,541 |  |  |  | 3,529 |  |  |  | 28,101 |  |  |  | 48,294 |
Physical quota guarantees |  |  | 852 |  |  |  | 709 |  |  |  | 668 |  |  |  | 563 |  |  |  | 477 |  |  |  | 10,600 |  |  |  | 13,869 |
Total |  |  | 12,080 |  |  |  | 10,727 |  |  |  | 10,382 |  |  |  | 9,682 |  |  |  | 9,039 |  |  |  | 120,873 |  |  |  | 172,783 |

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- References No definition available. + Details
Name: | cig_DisclosureOfSourceOfCommitmentsExplanatory
Namespace Prefix: | cig_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration