XML 60 R46.htm IDEA: XBRL DOCUMENT
v3.23.2

OPERATING SEGMENTS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Operating Segments |
Schedule of operating revenues, costs and expenses |
Schedule of operating revenues, costs and expenses |  |  |  |  |  |  |  |  |
Information by Segment as of and for The Year Ended December 31, 2022
Description | Energy | Investees | Total | Inter segment transactions (1) | Reconciliation (2) (3) | Total
Generation | Transmission | Trading | Distribution
NET REVENUE | 2,661 | 1,195 | 7,918 | 20,919 | 3,697 | 36,390 | (1,423) | (504) | 34,463
COST OF ENERGY, GAS AND CHARGES FOR USE OF THE NATIONAL GRID | (331) | - | (6,880) | (11,938) | (2,736) | (21,885) | 1,423 | 442 | (20,020)
OPERATING COSTS AND EXPENSES (3) |  |  |  |  |  |  |  |  |
Personnel | (162) | (135) | (12) | (913) | (130) | (1,352) | - | - | (1,352)
‘Employees and managers’ income sharing | (15) | (11) | (6) | (40) | (11) | (83) | - | - | (83)
Post-employment obligations | (66) | (42) | (10) | (421) | (87) | (626) | - | - | (626)
Materials, outsourced services and others expenses (revenues) | (395) | (96) | (14) | (1,785) | (203) | (2,481) | - | 62 | (2,419)
Depreciation and amortization | (328) | - | - | (738) | (109) | (1,182) | - | - | (1,182)
Operating provisions and impairment | (18) | (3) | (34) | (398) | (3) | (456) | - | - | (456)
Construction costs | - | (291) | - | (3,193) | (52) | (3,536) | - | - | (3,536)
Total operating costs | (984) | (578) | (76) | (7,488) | (595) | (9,716) | - | 62 | (9,655)
OPERATING COSTS AND EXPENSES | (1,315) | (578) | (6,956) | (19,426) | (3,331) | (31,601) | 1,423 | 504 | (29,675)
Equity in earnings of unconsolidated investees, net | (2) | 3 | - | - | 844 | 845 | - | - | 845
Gains arising from the sale of non-current asset held for sale | - | - | - | - | 52 | 52 | - | - | 52
Fair value of business combination | - | - | - | - | 5 | 5 | - | - | 5
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) | 1,344 | 620 | 962 | 1,493 | 1,267 | 5,686 | - | - | 5,686
Finance net income (expenses) | (150) | (96) | 34 | (1,115) | (239) | (1,566) | - | - | (1,566)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX | 1,194 | 524 | 996 | 378 | 1,028 | 4,120 | - | - | 4,120
Income tax and social contribution tax | (307) | (174) | (314) | 67 | 702 | (26) | - | - | (26)
NET INCOME FOR THE YEAR | 887 | 350 | 682 | 445 | 1,730 | 4,094 | - | - | 4,094
Equity holders of the parent | 887 | 350 | 682 | 445 | 1,728 | 4,092 | - | - | 4,092
Non-controlling interests | - | - | - | - | 2 | 2 | - | - | 2
Information by Segment as of and for The Year Ended December 31, 2021
Account/description | Energy | Investees | Total | Inter segment transactions (1) | Reconciliation (2) (3) | Total
Generation | Transmission | Trading | Distribution
NET REVENUE | 2,921 | 1,094 | 6,430 | 22,345 | 2,858 | 35,648 | (1,575) | (427) | 33,646
COST OF ENERGY, GAS AND CHARGES FOR USE OF THE NATIONAL GRID | (795) | - | (5,735) | (14,853) | (2,011) | (23,394) | 1,575 | 370 | (21,449)
OPERATING COSTS AND EXPENSES (3) |  |  |  |  |  |  |  |  |
Personnel | (149) | (115) | (20) | (847) | (109) | (1,240) | - | - | (1,240)
‘Employees and managers’ income sharing | (14) | (14) | (3) | (94) | (9) | (134) | - | - | (134)
Post-employment obligations | (5) | 3 | (1) | 19 | (32) | (16) | - | - | (16)
Materials, outsourced services and others expenses (revenues) | (209) | (94) | (14) | (1,524) | (165) | (2,006) | - | 57 | (1,949)
Depreciation and amortization | (254) | (3) | (1) | (683) | (108) | (1,049) | - | - | (1,049)
Operating provisions and impairment | (20) | (12) | (14) | (198) | (120) | (364) | - | - | (364)
Construction costs | - | (184) | - | (1,802) | (50) | (2,036) | - | - | (2,036)
Total operating costs | (651) | (419) | (53) | (5,129) | (593) | (6,845) | - | 57 | (6,788)
OPERATING COSTS AND EXPENSES | (1,446) | (419) | (5,788) | (19,982) | (2,604) | (30,239) | 1,575 | 427 | (28,237)
Periodic Tariff Revision, net | - | 215 | - | - | - | 215 | - | - | 215
Renegotiation of hydrological risk (Law 14,052/20), net | 1,032 | - | - | - | - | 1,032 | - | - | 1,032
Gains arising from the sale of non-current asset held for sale | - | - | - | - | 109 | 109 | - | - | 109
Equity in earnings of unconsolidated investees, net | 54 | - | - | - | 128 | 182 | - | - | 182
Fair value of business combination | - | 4 | - | - | - | 4 | - | - | 4
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) | 2,561 | 894 | 642 | 2,363 | 491 | 6,951 | - | - | 6,951
Finance net income (expenses) | (758) | (395) | 15 | (7) | (1,107) | (2,252) | - | - | (2,252)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX | 1,803 | 499 | 657 | 2,356 | (616) | 4,699 | - | - | 4,699
Income tax and social contribution tax | (409) | (78) | (224) | (655) | 420 | (946) | - | - | (946)
NET INCOME FOR THE YEAR | 1,394 | 421 | 433 | 1,701 | (196) | 3,753 | - | - | 3,753
Equity holders of the parent | 1,394 | 421 | 433 | 1,701 | (198) | 3,751 | - | - | 3,751
Non-controlling interests | - | - | - | - | 2 | 2 | - | - | 2
(1) | The only inter-segment transactions are from the generation to the trading segment, as explained above.
(2) | The reconciliation between the published amounts for the segments and the accounting information on revenue and costs indicates the transactions between the consolidated companies (eliminations).
(3) | The information on operational costs and expenses separated by type is segregated in accordance with the internal business model, which has immaterial differences in relation to the accounting information.
Information by Segment as of and for The Year Ended December 31, 2020
Account/description | Energy | Investees | Total | Inter segment transactions (1) | Reconciliation (2) (3) | Total
Generation | Transmission | Trading (1) | Distribution
NET REVENUE | 2,589 | 778 | 5,382 | 16,512 | 1,673 | 26,934 | (1,324) | (382) | 25,228
COST OF ENERGY, GAS AND CHARGES FOR USE OF THE NATIONAL GRID | (528) | - | (5,027) | (9,960) | (1,083) | (16,598) | 1,324 | 332 | (14,942)
OPERATING COSTS AND EXPENSES |  |  |  |  |  |  |  |  |
Personnel | (170) | (102) | (16) | (886) | (102) | (1,276) | - | - | (1,276)
‘Employees and managers’ income sharing | (16) | (14) | (2) | (93) | (17) | (142) | - | - | (142)
Post-employment obligations | (42) | (38) | (6) | (297) | (55) | (438) | - | - | (438)
Materials, outsourced services and others expenses (revenues) | (178) | (65) | (11) | (1,327) | (110) | (1,691) | - | 50 | (1,641)
Depreciation and amortization | (205) | (5) | (1) | (668) | (110) | (989) | - | - | (989)
Operating provisions and impairment | (32) | 7 | (1) | (274) | (123) | (423) | - | - | (423)
Construction costs | - | (147) | - | (1,384) | (50) | (1,581) | - | - | (1,581)
Total operating costs | (643) | (364) | (37) | (4,929) | (567) | (6,540) | - | 50 | (6,490)
OPERATING COSTS AND EXPENSES | (1,171) | (364) | (5,064) | (14,889) | (1,650) | (23,138) | 1,324 | 382 | (21,432)
Periodic Tariff Revision, net | - | 502 | - | - | - | 502 | - | - | 502
Fair value of business combination | - | 51 | - | - | - | 51 | - | - | 51
Equity in earnings of unconsolidated investees, net | 11 | - | - | - | 346 | 357 | - | - | 357
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) | 1,429 | 967 | 318 | 1,623 | 369 | 4,706 | - | - | 4,706
Finance expenses | (322) | (152) | 21 | 22 | (474) | (905) | - | - | (905)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX | 1,107 | 815 | 339 | 1,645 | (105) | 3,801 | - | - | 3,801
Income tax and social contribution tax | (308) | (222) | (81) | (430) | 105 | (936) | - | - | (936)
NET INCOME FOR THE YEAR | 799 | 593 | 258 | 1,215 | - | 2,865 | - | - | 2,865
Equity holders of the parent | 799 | 593 | 258 | 1,215 | (1) | 2,864 | - | - | 2,864
Non-controlling interests | - | - | - | - | 1 | 1 | - | - | 1
(1) | The only inter-segment transactions are from the generation to the trading segment, as explained above.
(2) | The reconciliation between the published amounts for the segments and the accounting information on revenue and costs indicates the transactions between the consolidated companies (eliminations).
(3) | The information on operational costs and expenses separated by type is segregated in accordance with the internal business model, which has immaterial differences in relation to the accounting information.

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

X
- Definition The disclosure of operating segments. [Refer: Operating segments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2022-03-24 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_23&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_DisclosureOfOperatingSegmentsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration