XML 52 R89.htm IDEA: XBRL DOCUMENT
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5. OPERATING SEGMENTS (Details) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  | R$ 49,926 | R$ 59,855 |  | R$ 42,239
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  | 5,400 | 5,235 |  | 7,792
INVESTMENTS IN AFFILIATES CLASSIFIED AS HELD FOR SALE |  | 1,258 |  |  |
ADDITIONS TO THE SEGMENT |  | 2,202 | 1,590 |  | 1,520
NET REVENUE |  | 25,390 | 22,266 |  | 21,712
COST OF ENERGY AND GAS |  |  |  |  |
Energy bought for resale |  | (11,286) | (11,084) |  | (10,919)
Charges for use of the national grid |  | (1,426) | (1,480) |  | (1,174)
Gas bought for resale |  | (1,436) | (1,238) |  | (1,071)
Operating costs, total |  | 14,148 | (13,802) |  | (13,164)
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  | (1,272) | (1,410) |  | (1,627)
Employees' and managers' profit sharing |  | (263) | (77) |  | (5)
Post-employment obligations |  | (408) | (337) |  | 229
Materials |  | (91) | (104) |  | (61)
Raw materials and inputs for production of energy |  |  |  |  | (10)
Outsourced services |  | (1,239) | (1,087) |  | (974)
Depreciation and amortization |  | (958) | (835) |  | (850)
Operating provisions (reversals) |  | (2,401) | (466) |  | (854)
Construction costs |  | (1,200) | (897) |  | (1,119)
Other operating expenses, net |  | (499) | (405) |  | (383)
Total cost of operation |  | (8,331) | (5,618) |  | (5,654)
OPERATING COSTS AND EXPENSES |  | (22,479) | (19,420) |  | (18,818)
OPERATING INCOME BEFORE EQUITY GAINS (LOSSES) AND FINANCE INCOME (EXPENSES) |  | 3,109 |  |  | 2,894
Equity in earnings of unconsolidated investees, net |  | 125 | (104) |  | (252)
Dividends declared by investee classified as held for sale |  | 73 |  |  |
Remeasurement of previously held equity interest in subsidiaries acquired |  |  | (119) |  |
Impairment for investments |  |  | (127) |  |
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) |  | 3,109 | 2,496 |  | 2,642
Finance income |  | 3,207 | 1,706 |  | 804
Finance expenses |  | (1,847) | (2,224) |  | (1,800)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX |  | 4,469 | 1,978 |  | 1,646
Income tax and social contribution tax |  | (1,565) | (599) |  | (644)
Net income for the year from continuing operations |  | 2,904 | 1,379 |  | 1,002
DISCONTINUED OPERATIONS |  |  |  |  |
NET INCOME AFTER TAX FROM DISCONTINUED OPERATIONS |  | 224 | 363 |  |
Items that will not be reclassified to profit or loss |  |  |  |  |
Post retirement liabilities - restatement of obligations of the defined benefit plans, net of taxes |  | (1,055) | (463) |  | (261)
Equity gain (loss) on Other comprehensive income in subsidiary and jointly-controlled entity, net of tax |  |  |  |  | (3)
Other comprehensive income that will not be reclassified to profit or loss, net of tax |  | (1,055) | (463) |  | (264)
Items that may be reclassified to profit or loss |  |  |  |  |
Equity gain (loss) on Other comprehensive income in subsidiary and jointly-controlled entity, net of tax |  |  |  |  | (38)
Items that may be reclassified to profit or loss |  |  |  |  | (38)
COMPREHENSIVE INCOME FOR THE YEAR |  |  |  |  | 7
Net income (loss) for the year |  | 3,128 | 1,742 |  | 1,002
Equity holders of the parent |  | 3,127 | 1,700 |  | 699
Non-controlling interests |  | 1 | 42 |  | 1
Operating Segments [Member] | Elimination Segments [Member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  | (1,128) | (957) |  | (32)
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  |  |  |  |
INVESTMENTS IN AFFILIATES CLASSIFIED AS HELD FOR SALE |  |  |  |  |
ADDITIONS TO THE SEGMENT |  |  |  |  |
NET REVENUE |  | (307) | (293) |  | (288)
COST OF ENERGY AND GAS |  |  |  |  |
Energy bought for resale |  | 72 | 71 |  | 73
Charges for use of the national grid |  | 223 | 200 |  | 181
Gas bought for resale |  |  |  |  |
Operating costs, total |  | 295 | 271 |  | 254
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  |  |  |  |
Employees' and managers' profit sharing |  |  |  |  |
Post-employment obligations |  |  |  |  |
Materials |  |  |  |  |
Outsourced services |  | 7 | 15 |  | 30
Depreciation and amortization |  |  |  |  |
Operating provisions (reversals) |  |  |  |  |
Construction costs |  |  |  |  |
Other operating expenses, net |  | 5 | 7 |  | 4
Total cost of operation |  | 12 | 22 |  | 34
OPERATING COSTS AND EXPENSES |  | (307) | (293) |  | (288)
Equity in earnings of unconsolidated investees, net |  |  |  |  |
Operating Segments [Member] | Gas Segment [Member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  | 2,689 | 1,822 |  | 2
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  |  |  |  |
INVESTMENTS IN AFFILIATES CLASSIFIED AS HELD FOR SALE |  |  |  |  |
ADDITIONS TO THE SEGMENT |  | 934 | 7 |  | 56
NET REVENUE |  | 1,858 | 1,619 |  | 1,482
COST OF ENERGY AND GAS |  |  |  |  |
Energy bought for resale |  |  |  |  |
Charges for use of the national grid |  |  |  |  |
Gas bought for resale |  | (1,436) | (1,238) |  | (1,071)
Operating costs, total |  | (1,436) | (1,238) |  | (1,071)
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  | (46) | (60) |  | (56)
Employees' and managers' profit sharing |  |  |  |  |
Post-employment obligations |  |  |  |  |
Materials |  | (20) | (20) |  | (2)
Outsourced services |  | (2) | (2) |  | (17)
Depreciation and amortization |  | (86) | (74) |  | (71)
Operating provisions (reversals) |  | (2) | 2 |  | (2)
Construction costs |  | (43) | (45) |  | (49)
Other operating expenses, net |  | (10) | (13) |  | (15)
Total cost of operation |  | (290) | (212) |  | 212
OPERATING COSTS AND EXPENSES |  | (1,645) | (1,450) |  | (1,283)
OPERATING INCOME BEFORE EQUITY GAINS (LOSSES) AND FINANCE INCOME (EXPENSES) |  | 213 |  |  | 199
Equity in earnings of unconsolidated investees, net |  |  |  |  |
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) |  |  | 169 |  |
Finance income |  | 21 | 84 |  | 49
Finance expenses |  | (46) | (38) |  | (43)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX |  | 188 | 215 |  | 205
Income tax and social contribution tax |  | (47) | (53) |  | (71)
Net income for the year from continuing operations |  | 141 | 162 |  |
Items that may be reclassified to profit or loss |  |  |  |  |
COMPREHENSIVE INCOME FOR THE YEAR |  |  |  |  | 134
Net income (loss) for the year |  | 141 | 162 |  | 134
Equity holders of the parent |  | 14 | 161 |  | 133
Non-controlling interests |  | 1 | 1 |  |
Operating Segments [Member] | Energy Distribution Segment [Member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  | 25,616 | 37,840 |  | 20,021
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  |  |  |  | 1,918
INVESTMENTS IN AFFILIATES CLASSIFIED AS HELD FOR SALE |  | 1,258 |  |  |
ADDITIONS TO THE SEGMENT |  | 936 | 856 |  | 1,083
NET REVENUE |  | 15,919 | 13,757 |  | 12,125
COST OF ENERGY AND GAS |  |  |  |  |
Energy bought for resale |  | (7,517) | (7,238) |  | (6,783)
Charges for use of the national grid |  | (1,459) | (1,463) |  | (1,002)
Gas bought for resale |  |  |  |  |
Operating costs, total |  | (8,976) | (8,701) |  | (7,785)
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  | (869) | (965) |  | (1,123)
Employees' and managers' profit sharing |  | (183) | (51) |  | (3)
Post-employment obligations |  | (276) | (224) |  | 180
Materials |  | (63) | (58) |  | (43)
Outsourced services |  | (1,016) | (88) |  | (785)
Depreciation and amortization |  | (652) | (595) |  | (567)
Operating provisions (reversals) |  | (1,102) | (332) |  | (469)
Construction costs |  | (936) | (757) |  | (1,045)
Other operating expenses, net |  | (298) | (203) |  | (408)
Total cost of operation |  | 5,395 | (4,065) |  | (4,263)
OPERATING COSTS AND EXPENSES |  | 14,371 | (12,766) |  | (12,048)
OPERATING INCOME BEFORE EQUITY GAINS (LOSSES) AND FINANCE INCOME (EXPENSES) |  | 1,621 |  |  | 264
Equity in earnings of unconsolidated investees, net |  |  | 33 |  | 42
Dividends declared by investee classified as held for sale |  | 73 |  |  |
Remeasurement of previously held equity interest in subsidiaries acquired |  |  | (52) |  |
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) |  |  | 972 |  |
Finance income |  | 1,535 | 434 |  | 397
Finance expenses |  | (632) | (621) |  | (815)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX |  | 2,524 | 785 |  | (112)
Income tax and social contribution tax |  | (806) | (217) |  | 31
Net income for the year from continuing operations |  | 1,718 | 568 |  |
DISCONTINUED OPERATIONS |  |  |  |  |
NET INCOME AFTER TAX FROM DISCONTINUED OPERATIONS |  | 224 | 62 |  |
Items that will not be reclassified to profit or loss |  |  |  |  |
Post retirement liabilities - restatement of obligations of the defined benefit plans, net of taxes |  |  |  |  | (145)
Other comprehensive income that will not be reclassified to profit or loss, net of tax |  |  |  |  | (145)
Items that may be reclassified to profit or loss |  |  |  |  |
COMPREHENSIVE INCOME FOR THE YEAR |  |  |  |  | (226)
Net income (loss) for the year |  | 1,942 | 630 |  | (81)
Equity holders of the parent |  | 1,942 | 599 |  | (226)
Non-controlling interests |  |  | 31 |  |
Operating Segments [Member] | Energy Generation Segment [Member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  | 14,749 | 14,671 |  | 14,366
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  | 4,133 | 4,055 |  | 4,723
INVESTMENTS IN AFFILIATES CLASSIFIED AS HELD FOR SALE |  |  |  |  |
ADDITIONS TO THE SEGMENT |  | 102 | 559 |  | 308
NET REVENUE |  | 6,882 | 6,374 |  | 7,190
COST OF ENERGY AND GAS |  |  |  |  |
Energy bought for resale |  | (3,841) | (3,917) |  | (4,209)
Charges for use of the national grid |  | (190) | (216) |  | (353)
Gas bought for resale |  |  |  |  |
Operating costs, total |  | (4,031) | (4,133) |  | (4,562)
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  | (208) | (230) |  | (281)
Employees' and managers' profit sharing |  | (36) | (10) |  | (1)
Post-employment obligations |  | (50) | (46) |  | 39
Materials |  | (17) | (39) |  | (11)
Raw materials and inputs for production of energy |  |  |  |  | (1)
Outsourced services |  | (125) | (123) |  | (127)
Depreciation and amortization |  | (210) | (164) |  | (176)
Operating provisions (reversals) |  | (975) | (107) |  | (139)
Construction costs |  |  |  |  |
Other operating expenses, net |  | (176) | (65) |  | (117)
Total cost of operation |  | (1,797) | (784) |  | (823)
OPERATING COSTS AND EXPENSES |  | (5,828) | (4,917) |  | (5,385)
OPERATING INCOME BEFORE EQUITY GAINS (LOSSES) AND FINANCE INCOME (EXPENSES) |  | 966 |  |  | 1,805
Equity in earnings of unconsolidated investees, net |  | (88) | (353) |  | (519)
Remeasurement of previously held equity interest in subsidiaries acquired |  |  | 80 |  |
Impairment for investments |  |  | (127) |  |
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) |  |  | 1,057 |  |
Finance income |  | 1,282 | 1,113 |  | 226
Finance expenses |  | (1,035) | (1,536) |  | (1,161)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX |  | 1,213 | 634 |  | 351
Income tax and social contribution tax |  | (551) | (276) |  | (257)
Net income for the year from continuing operations |  | 662 | 358 |  |
DISCONTINUED OPERATIONS |  |  |  |  |
NET INCOME AFTER TAX FROM DISCONTINUED OPERATIONS |  |  | 11 |  |
Items that will not be reclassified to profit or loss |  |  |  |  |
Post retirement liabilities - restatement of obligations of the defined benefit plans, net of taxes |  |  |  |  | (47)
Other comprehensive income that will not be reclassified to profit or loss, net of tax |  |  |  |  | (47)
Items that may be reclassified to profit or loss |  |  |  |  |
Equity gain (loss) on Other comprehensive income in subsidiary and jointly-controlled entity, net of tax |  |  |  |  | (34)
Items that may be reclassified to profit or loss |  |  |  |  | (34)
COMPREHENSIVE INCOME FOR THE YEAR |  |  |  |  | 13
Net income (loss) for the year |  | 662 | 369 |  | 94
Equity holders of the parent |  | 662 | 361 |  | 13
Non-controlling interests |  |  | 8 |  |
Operating Segments [Member] | Telecommunications Segment [Member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  |  | 10 |  | 347
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  |  |  |  |
ADDITIONS TO THE SEGMENT |  |  | 9 | [1] | 47
NET REVENUE |  |  |  |  | 127
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  |  | (18) | [1] | (20)
Materials | [1] |  | (1) |  |
Outsourced services |  |  | (9) | [1] | (28)
Depreciation and amortization |  |  | (1) | [1] | (35)
Operating provisions (reversals) |  |  | 1 | [1] | (1)
Other operating expenses, net |  |  | (3) | [1] | (23)
Total cost of operation |  |  | (31) | [1] | (107)
OPERATING COSTS AND EXPENSES |  |  | (31) |  | (107)
OPERATING INCOME BEFORE EQUITY GAINS (LOSSES) AND FINANCE INCOME (EXPENSES) |  |  |  |  | 20
Equity in earnings of unconsolidated investees, net |  |  | (1) | [1] | (2)
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) | [1] |  | (32) |  |
Finance income |  |  | 1 | [1] | 3
Finance expenses |  |  | (5) | [1] | (15)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX |  |  | (36) | [1] | 6
Income tax and social contribution tax |  |  | 12 | [1] | (3)
Net income for the year from continuing operations | [1] |  | (24) |  |
DISCONTINUED OPERATIONS |  |  |  |  |
NET INCOME AFTER TAX FROM DISCONTINUED OPERATIONS | [1] |  | 290 |  |
Items that may be reclassified to profit or loss |  |  |  |  |
COMPREHENSIVE INCOME FOR THE YEAR |  |  |  |  | 3
Net income (loss) for the year |  |  | 266 | [1] | 3
Equity holders of the parent |  |  | 266 | [1] | 3
Operating Segments [Member] | Energy Transmission Segment [Member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  | 4,113 | 3,862 |  | 3,955
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  | 1,237 | 1,163 |  | 1,122
INVESTMENTS IN AFFILIATES CLASSIFIED AS HELD FOR SALE |  |  |  |  |
ADDITIONS TO THE SEGMENT |  | 221 | 96 |  | 25
NET REVENUE |  | 714 | 676 |  | 777
COST OF ENERGY AND GAS |  |  |  |  |
Energy bought for resale |  |  |  |  |
Charges for use of the national grid |  |  |  |  |
Gas bought for resale |  |  |  |  |
Operating costs, total |  |  |  |  |
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  | (115) | (108) |  | (106)
Employees' and managers' profit sharing |  | (27) | (7) |  |
Post-employment obligations |  | (38) | (27) |  | 19
Materials |  | (6) | (4) |  | (4)
Outsourced services |  | (45) | (40) |  | (31)
Depreciation and amortization |  | (5) |  |  |
Operating provisions (reversals) |  | (134) | (12) |  | (10)
Construction costs |  | (221) | (96) |  | (25)
Other operating expenses, net |  | (20) | (17) |  | (11)
Total cost of operation |  | 611 | (311) |  | (168)
OPERATING COSTS AND EXPENSES |  | 611 | (311) |  | (168)
OPERATING INCOME BEFORE EQUITY GAINS (LOSSES) AND FINANCE INCOME (EXPENSES) |  | 317 |  |  | 609
Equity in earnings of unconsolidated investees, net |  | 214 | 231 |  | 234
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) |  |  | 595 |  |
Finance income |  | 98 | 61 |  | 9
Finance expenses |  | (115) | (5) |  | (3)
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX |  | 300 | 651 |  | 849
Income tax and social contribution tax |  | (36) | (122) |  | (189)
Net income for the year from continuing operations |  | 264 | 529 |  |
Items that will not be reclassified to profit or loss |  |  |  |  |
Post retirement liabilities - restatement of obligations of the defined benefit plans, net of taxes |  |  |  |  | (23)
Other comprehensive income that will not be reclassified to profit or loss, net of tax |  |  |  |  | (23)
Items that may be reclassified to profit or loss |  |  |  |  |
COMPREHENSIVE INCOME FOR THE YEAR |  |  |  |  | 637
Net income (loss) for the year |  | 264 | 529 |  | 660
Equity holders of the parent |  | 264 | 529 |  | 637
Operating Segments [Member] | Other Segments [Member] |  |  |  |  |
Disclosure of operating segments [line items] |  |  |  |  |
SEGMENT ASSETS |  | 3,887 | 2,607 |  | 1,582
INVESTMENTS IN SUBSIDIARIES AND JOINTLY-CONTROLLED ENTITIES |  | 30 | 17 |  | 29
INVESTMENTS IN AFFILIATES CLASSIFIED AS HELD FOR SALE |  |  |  |  |
ADDITIONS TO THE SEGMENT |  | 9 |  |  | 1
NET REVENUE |  | 324 | 134 |  | 112
COST OF ENERGY AND GAS |  |  |  |  |
Energy bought for resale |  |  |  |  |
Charges for use of the national grid |  |  |  |  |
Gas bought for resale |  |  |  |  |
Operating costs, total |  |  |  |  |
OPERATING COSTS AND EXPENSES |  |  |  |  |
Personnel |  | (34) | (29) |  | (41)
Employees' and managers' profit sharing |  | (17) | (10) |  | (1)
Post-employment obligations |  | (44) | (41) |  | (9)
Materials |  | (3) |  |  | (1)
Outsourced services |  | (40) | (30) |  | (16)
Depreciation and amortization |  | (5) | (1) |  | (1)
Operating provisions (reversals) |  | (188) | (18) |  | (233)
Construction costs |  |  |  |  |
Other operating expenses, net |  |  | (109) |  | 187
Total cost of operation |  | (331) | (238) |  | (115)
OPERATING COSTS AND EXPENSES |  | (331) | (238) |  | (115)
OPERATING INCOME BEFORE EQUITY GAINS (LOSSES) AND FINANCE INCOME (EXPENSES) |  | (8) |  |  | (3)
Equity in earnings of unconsolidated investees, net |  | (1) | (14) |  | (7)
Remeasurement of previously held equity interest in subsidiaries acquired |  |  | (147) |  |
OPERATING INCOME BEFORE FINANCE INCOME (EXPENSES) |  |  | (265) |  |
Finance income |  | 271 | 13 |  | 120
Finance expenses |  | (19) | (19) |  | 237
INCOME BEFORE INCOME TAX AND SOCIAL CONTRIBUTION TAX |  | 244 | (271) |  | 347
Income tax and social contribution tax |  | (125) | 57 |  | (155)
Net income for the year from continuing operations |  | 119 | (214) |  |
Items that will not be reclassified to profit or loss |  |  |  |  |
Post retirement liabilities - restatement of obligations of the defined benefit plans, net of taxes |  |  |  |  | (46)
Equity gain (loss) on Other comprehensive income in subsidiary and jointly-controlled entity, net of tax |  |  |  |  | (3)
Other comprehensive income that will not be reclassified to profit or loss, net of tax |  |  |  |  | (49)
Items that may be reclassified to profit or loss |  |  |  |  |
Equity gain (loss) on Other comprehensive income in subsidiary and jointly-controlled entity, net of tax |  |  |  |  | (4)
Items that may be reclassified to profit or loss |  |  |  |  | (4)
COMPREHENSIVE INCOME FOR THE YEAR |  |  |  |  | 139
Net income (loss) for the year |  | 119 | (214) |  | 192
Equity holders of the parent |  | R$ 119 | (216) |  | R$ 139
Non-controlling interests |  |  | R$ 2 |  |
[1] | On March 31, 2018 Cemig Telecom assets and liabilities were merged into the Company.

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