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11. INCOME AND SOCIAL CONTRIBUTION TAXES (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure of income and social contribution taxes [abstract] |
Schedule of income and social contribution taxes recoverable | The balances of income tax and social contribution tax refer to tax credits in the corporate income tax returns of previous years and to advance payments which will be offset against federal taxes eventually payable.
|  | 2019 |  |  |  | 2018 |
Income tax |  | 608 |  |  |  | 253 |
Social contribution tax |  | 241 |  |  |  | 140 |
|  | 849 |  |  |  | 393 |
Current |  | 621 |  |  |  | 387 |
Non-current |  | 228 |  |  |  | 6 |
|  | 2019 |  |  |  | 2018 |
Current |  |  |  |  |  |  |
Income tax |  | 99 |  |  |  | 83 |
Social contribution tax |  | 35 |  |  |  | 29 |
|  | 134 |  |  |  | 112
Schedule of deferred income and social contribution taxes | The Company has deferred taxed assets from unused tax loss carryforwards, negative base for the social contribution tax, and deductible temporary differences, at the statutory rates applicable to each legal entity in Brazil of 25% (for Income tax) and 9% (for the social contribution tax), as follows:
|  | 2019 |  |  |  | 2018 |
Deferred tax assets |  |  |  |  |  |  |
Tax loss carryforwards |  | 116 |  |  |  | 373 |
Provisions for contingencies |  | 544 |  |  |  | 218 |
Impairment on investments |  | 660 |  |  |  | 882 |
Fair value of derivative instruments (PUT SAAG ) |  | 164 |  |  |  | 143 |
Operating provisions |  | 66 |  |  |  | 39 |
Provisions for profit sharing |  | 72 |  |  |  | 25 |
Post-employment obligations |  | 2,090 |  |  |  | 1,477 |
Estimated provision for doubtful receivables |  | 283 |  |  |  | 279 |
Onerous concession |  | 8 |  |  |  | 8 |
Others |  | 25 |  |  |  | 27 |
Total |  | 4,028 |  |  |  | 3,471 |
Deferred tax liabilities |  |  |  |  |  |  |
Funding cost |  | (16 | ) |  |  | (25 | )
Deemed cost |  | (232 | ) |  |  | (239 | )
Acquisition costs of equity interests |  | (503 | ) |  |  | (501 | )
Borrowing costs capitalized |  | (166 | ) |  |  | (168 | )
Taxes on revenues not redeemed – Presumed Profit accounting method |  | (1 | ) |  |  | (5 | )
Adjustment to expectation of cash flow – Concession assets |  | (761 | ) |  |  | (804 | )
Adjustment to fair value: Swap/Gains |  | (575 | ) |  |  | (277 | )
Others |  | (5 | ) |  |  | (33 | )
Total |  | (2,259 | ) |  |  | (2,052 | )
Total, net |  | 1,769 |  |  |  | 1,419 |
Total assets |  | 2,430 |  |  |  | 2,147 |
Total liabilities |  | (661 | ) |  |  | (728 | )
Schedule of changes in deferred income and social contribution taxes | The changes in deferred income tax and social contribution tax were as follows:
|  | Consolidated |
Balance at December 31, 2016 |  | 1,215 |
Effects allocated to net profit from continuing operations |  | (198 | )
Effect allocated to other comprehensive income |  | 133 |
Effects allocated to equity |  |  |
Variations in deferred tax assets and liabilities |  | (14 | )
Balance at December 31, 2017 |  | 1,136 |
Effects allocated to net profit from continuing operations |  | (16 | )
Effect allocated to other comprehensive income |  | 239 |
Effects allocated to Equity |  |  |
First-time adoption of IFRS 9 – effects allocated to equity |  | 51 |
Reversal of deemed cost |  | 18 |
Transfer to assets held for sale |  | (3 | )
Variations in deferred tax assets and liabilities |  | (3 | )
Deferred taxes arising from business combination |  | (3 | )
Balance at December 31, 2018 |  | 1,419 |
Effect allocated to other comprehensive income |  | 544 |
Effects allocated to net profit from continuing operations |  | (111 | )
Effects allocated to net profit from discontinuing operations (note 34) |  | (85 | )
Others |  | 2 |
Balance at December 31, 2019 |  | 1,769
Schedule of estimated balance of deferred tax asset | The Company estimated that the balance of deferred tax asset as of December 31, 2019 will be recovered, as follows:
|  | Consolidated |
2020 |  | 659 |
2021 |  | 571 |
2022 |  | 571 |
2023 |  | 572 |
2024 |  | 571 |
2025 to 2027 |  | 659 |
2028 to 2029 |  | 425 |
|  | 4,028
Schedule of reconciliation of statutory on income and social contribution Ttxes | This table reconciles the statutory income tax (rate 25%) and social contribution tax (rate 9%) with the current income tax expense in the Statement of income:
|  | 2019 |  |  |  | 2018 |  |  |  | 2017 |
Profit before income tax and social contribution tax |  | 4,469 |  |  |  | 1,978 |  |  |  | 1,646 |
Income tax and social contribution tax – nominal expense (34%) |  | (1,520 | ) |  |  | (672 | ) |  |  | (560 | )
Tax effects applicable to: |  |  |  |  |  |  |  |  |  |  |
Gain (loss) in subsidiaries by equity method |  | 8 |  |  |  | (61 | ) |  |  | (129 | )
Interest on Equity |  | 136 |  |  |  | 71 |  |  |  | – |
Gain on dilution of an equity interest |  | – |  |  |  | – |  |  |  | 8 |
Non-deductible contributions and donations |  | (13 | ) |  |  | (6 | ) |  |  | (6 | )
Tax incentives |  | 66 |  |  |  | 29 |  |  |  | 11 |
Tax credits not recognized |  | – |  |  |  | (1 | ) |  |  | – |
Effects from subsidiaries taxed based on gross revenues |  | 89 |  |  |  | 89 |  |  |  | 81 |
Non-deductible penalties |  | (135 | ) |  |  | (12 | ) |  |  | (14 | )
Impairment of accounts receivable from related parties |  | (234 | ) |  |  |  |  |  |  |  |
Excess reactive power and demand |  | – |  |  |  | – |  |  |  | (2 | )
Others |  | 38 |  |  |  | (36 | ) |  |  | (33 | )
Income tax and social contribution tax – effective expense |  | (1,565 | ) |  |  | (599 | ) |  |  | (644 | )
Current tax |  | (1,454 | ) |  |  | (583 | ) |  |  | (446 | )
Deferred tax |  | (111 | ) |  |  | (16 | ) |  |  | (198 | )
|  | (1,565 | ) |  |  | (599 | ) |  |  | (644 | )
Effective rate |  | 35.03 | % |  |  | 30.30 | % |  |  | 39.13 | %

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