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30. OPERATING COSTS AND EXPENSES (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure Of Operating Costs And Expenses [abstract] |
Schedule of operating costs and expenses | The operating costs are as follows:
|  | 2019 |  |  |  | 2018 |  |  |  | 2017 |
Personnel (a) |  | 1,272 |  |  |  | 1,410 |  |  |  | 1,627 |
Employees’ and managers’ profit sharing |  | 263 |  |  |  | 77 |  |  |  | 5 |
Post-employment benefits (reversals) – Note 26 |  | 408 |  |  |  | 337 |  |  |  | (229 | )
Materials |  | 91 |  |  |  | 104 |  |  |  | 61 |
Raw materials and inputs for production of energy |  | – |  |  |  | – |  |  |  | 10 |
Outsourced services (b) |  | 1,239 |  |  |  | 1,087 |  |  |  | 974 |
Energy bought for resale (c) |  | 11,286 |  |  |  | 11,084 |  |  |  | 10,919 |
Depreciation and amortization (1) |  | 958 |  |  |  | 835 |  |  |  | 850 |
Operating provisions and adjustments for operating losses (d) |  | 2,401 |  |  |  | 466 |  |  |  | 854 |
Charges for use of the national grid |  | 1,426 |  |  |  | 1,480 |  |  |  | 1,174 |
Gas bought for resale |  | 1,436 |  |  |  | 1,238 |  |  |  | 1,071 |
Construction costs (e) |  | 1,200 |  |  |  | 897 |  |  |  | 1,119 |
Other operating expenses, net (f) |  | 499 |  |  |  | 405 |  |  |  | 383 |
|  | 22,479 |  |  |  | 19,420 |  |  |  | 18,818 |
(1) | Net of PIS/Pasep and Cofins taxes applicable to amortization of the right-of-use assets in the amount of R$5.
Schedule of outsourced services | b) Outsourced services
|  | 2019 |  |  |  | 2018 |  |  |  | 2017 |
Meter reading and bill delivery |  | 128 |  |  |  | 129 |  |  |  | 142 |
Communication |  | 69 |  |  |  | 80 |  |  |  | 66 |
Maintenance and conservation of electrical facilities and equipment |  | 404 |  |  |  | 323 |  |  |  | 266 |
Building conservation and cleaning |  | 110 |  |  |  | 110 |  |  |  | 108 |
Contracted labor |  | 17 |  |  |  | 21 |  |  |  | 15 |
Freight and airfares |  | 7 |  |  |  | 7 |  |  |  | 8 |
Accommodation and meals |  | 14 |  |  |  | 12 |  |  |  | 13 |
Security services |  | 18 |  |  |  | 20 |  |  |  | 23 |
Consultant |  | 24 |  |  |  | 16 |  |  |  | 16 |
Maintenance and conservation of furniture and utensils |  | 5 |  |  |  | 4 |  |  |  | 4 |
Information technology |  | 63 |  |  |  | 59 |  |  |  | 62 |
Maintenance and conservation of vehicles |  | 3 |  |  |  | 2 |  |  |  | 2 |
Disconnection and reconnection |  | 70 |  |  |  | 62 |  |  |  | 35 |
Environmental services |  | 14 |  |  |  | 14 |  |  |  | 11 |
Legal services |  | 26 |  |  |  | 25 |  |  |  | 22 |
Legal procedural costs |  | 2 |  |  |  | 2 |  |  |  | 3 |
Tree pruning |  | 46 |  |  |  | 28 |  |  |  | 21 |
Cleaning of power line pathways |  | 61 |  |  |  | 41 |  |  |  | 16 |
Copying and legal publications |  | 21 |  |  |  | 21 |  |  |  | 23 |
Inspection of customer units |  | 14 |  |  |  | 10 |  |  |  | 1 |
Printing of tax invoices and energy bills |  | – |  |  |  | – |  |  |  | 3 |
Other expenses |  | 123 |  |  |  | 101 |  |  |  | 114 |
|  | 1,239 |  |  |  | 1,087 |  |  |  | 974 |
Schedule of electricity purchased for resale | c) Energy purchased for resale
|  | 2019 |  |  |  | 2018 |  |  |  | 2017 |
Supply from Itaipu Binacional |  | 1,429 |  |  |  | 1,351 |  |  |  | 1,243 |
Physical guarantee quota contracts |  | 715 |  |  |  | 679 |  |  |  | 461 |
Quotas for Angra I and II nuclear plants |  | 269 |  |  |  | 267 |  |  |  | 244 |
Spot market |  | 1,886 |  |  |  | 1,818 |  |  |  | 1,498 |
Proinfa Program |  | 376 |  |  |  | 324 |  |  |  | 303 |
‘Bilateral’ contracts |  | 311 |  |  |  | 484 |  |  |  | 385 |
Energy acquired in Regulated Market auctions |  | 3,021 |  |  |  | 3,346 |  |  |  | 3,555 |
Energy acquired in the Free Market |  | 4,098 |  |  |  | 3,871 |  |  |  | 4,283 |
Distributed generation (‘Geração distribuída’) |  | 207 |  |  |  | – |  |  |  | – |
PIS/Pasep and Cofins credits |  | (1,026 | ) |  |  | (1,056 | ) |  |  | (1,053 | )
|  | 11,286 |  |  |  | 11,084 |  |  |  | 10,919 |
Schedule of operating provision (reversals) and adjustments for operating losses | d) Operating provision (reversals) and adjustments for operating losses
|  | 2019 |  |  |  | 2018 |  |  |  | 2017 |
Estimated losses on doubtful accounts receivables (Note 8) |  | 238 |  |  |  | 264 |  |  |  | 248 |
Estimated losses on other accounts receivables (1) |  | 11 |  |  |  | (4 | ) |  |  | 27 |
Estimated losses on accounts receivables from related parties (3) (note 32) |  | 688 |  |  |  |  |  |  |  |  |
Contingency provisions (reversals) (Note 27) (2) |  |  |  |  |  |  |  |  |  |  |
Labor claims |  | 136 |  |  |  | 42 |  |  |  | 206 |
Civil |  | 24 |  |  |  | 13 |  |  |  | 27 |
Tax |  | 1,228 |  |  |  | (5 | ) |  |  | 7 |
Environmental |  | (1 | ) |  |  | 1 |  |  |  | – |
Regulatory |  | 1 |  |  |  | (2 | ) |  |  | (3 | )
Other |  | 12 |  |  |  | 2 |  |  |  | (6 | )
|  | 1,400 |  |  |  | 51 |  |  |  | 231 |
|  | 2,337 |  |  |  | 311 |  |  |  | 506 |
Adjustment for losses |  |  |  |  |  |  |  |  |  |  |
Put option – Sonda |  | – |  |  |  | – |  |  |  | 1 |
Put option – RME and LEPSA |  | – |  |  |  | 48 |  |  |  | 231 |
Put option – SAAG (Note 33) |  | 64 |  |  |  | 107 |  |  |  | 116 |
|  | 64 |  |  |  | 155 |  |  |  | 348 |
|  | 2,401 |  |  |  | 466 |  |  |  | 854 |
(1) | The estimated losses on other accounts receivable are presented in the consolidated Statement of income as operating expenses.
(2) | The provisions for contingencies of the holding company are presented in the consolidated statement of income for the year as operating expenses.
(3) | Estimated losses on accounts receivable from Renova, as a result of the assessment of the jointly-controlled entity credit risk, which deteriorated in the current year.
Schedule of construction cost | e) Construction costs
|  | 2019 |  |  |  | 2018 |  |  |  | 2017 |
Personnel and managers |  | 85 |  |  |  | 70 |  |  |  | 36 |
Materials |  | 595 |  |  |  | 379 |  |  |  | 550 |
Outsourced services |  | 421 |  |  |  | 364 |  |  |  | 406 |
Others |  | 99 |  |  |  | 84 |  |  |  | 127 |
|  | 1,200 |  |  |  | 897 |  |  |  | 1,119 |
Schedule of other operating expenses (revenues), net | f) Other operating expenses (revenues), net
|  | 2019 |  |  |  | 2018 |  |  |  | 2017 |
Leasing and rentals (1) |  | 20 |  |  |  | 93 |  |  |  | 103 |
Advertising |  | 9 |  |  |  | 19 |  |  |  | 30 |
Own consumption of energy |  | 21 |  |  |  | 27 |  |  |  | 24 |
Subsidies and donations |  | 40 |  |  |  | 22 |  |  |  | 19 |
Onerous concession |  | 3 |  |  |  | 3 |  |  |  | 3 |
Insurance |  | 12 |  |  |  | 7 |  |  |  | 8 |
CCEE annual charge |  | 6 |  |  |  | 6 |  |  |  | 8 |
Net loss (gain) on deactivation and disposal of assets |  | 92 |  |  |  | 7 |  |  |  | 193 |
Forluz – Administrative running cost |  | 30 |  |  |  | 28 |  |  |  | 26 |
Collection agents |  | 88 |  |  |  | 78 |  |  |  | 71 |
Gain on disposal, Taesa |  | – |  |  |  | – |  |  |  | (207 | )
Fine for violation of service continuity standard |  | – |  |  |  | – |  |  |  | 42 |
Obligations deriving from investment contracts (2) |  | 32 |  |  |  | – |  |  |  | – |
Taxes and charges |  | 10 |  |  |  | 9 |  |  |  | – |
Other expenses (3) |  | 136 |  |  |  | 106 |  |  |  | 63 |
|  | 499 |  |  |  | 405 |  |  |  | 383 |
(1) | As from January 1, 2019, the amounts related to leasing and rentals are recognized in accordance with IFRS 16, as shown in notes 2.4 and 21. The Company has operational leasing contracts relating, mainly, to vehicles and buildings used in its operational activities. Their amounts are not material in relation to the total costs of the Company. Actual leasing and rentals expenses are related to remaining leasing arrangements and rentals that do not qualify for recognition under IFRS 16.
(2) | This refers to claims under the agreement made between Aliança Geração, Vale S.A. and Cemig. The action is provisioned at the cost of R$98, of which Cemig is responsible for R$32.
(3) | The losses recorded on assets in progress (canceled works) are net of the reversal of the provisions constituted in prior periods. Includes the adjustment of R$22 for impairment of intangible assets.

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