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34 Operating Segments (Details 2) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of operating segments [line items] |  |  |
Contract Assets | R$ 1,293,765 | R$ 935,167 | R$ 813,450
Property, plant and equipment | 366,298 | 582,259 | 1,469,480
Intangible assets | 10,991 | 5,032 | 7,589
Right-of-use asset | 103,571 | 127,375 |
IFRS 16 Initial adoption |  | 118,022 |
Additions for the period |  | 9,353 |
Electric energy GET [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Contract Assets |  |  |
Property, plant and equipment | 236,914 | 522,744 | 1,160,967
Intangible assets | 7,397 | 4,272 | 6,351
Right-of-use asset | 19,231 | 33,461 |
IFRS 16 Initial adoption |  | 32,919 |
Additions for the period |  | 542 |
Electric energy DIS [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Contract Assets | 1,278,578 | 917,577 | 797,832
Property, plant and equipment |  |  |
Intangible assets |  |  |
Right-of-use asset | 72,421 | 66,621 |
IFRS 16 Initial adoption |  | 60,494 |
Additions for the period |  | 6,127 |
Electric energy Com [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Contract Assets |  |  |
Property, plant and equipment | 203 | 14 | 4
Intangible assets | 1,741 | 3 |
Right-of-use asset | 135 | 8 |
IFRS 16 Initial adoption |  |  |
Additions for the period |  | 8 |
TEL [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Contract Assets |  |  |
Property, plant and equipment | 127,381 | 59,216 | 308,242
Intangible assets | 808 | 486 | 1,235
Right-of-use asset | 10,135 | 9,950 |
IFRS 16 Initial adoption |  | 9,868 |
Additions for the period |  | 82 |
GAS [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Contract Assets | 15,187 | 17,590 | 15,618
Property, plant and equipment |  |  |
Intangible assets |  |  |
Right-of-use asset | 623 | 16,933 |
IFRS 16 Initial adoption |  | 14,356 |
Additions for the period |  | 2,577 |
HOL [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Contract Assets |  |  |
Property, plant and equipment | 1,800 | 285 | 267
Intangible assets | 1,045 | 271 | R$ 3
Right-of-use asset | R$ 1,026 | 402 |
IFRS 16 Initial adoption |  | 385 |
Additions for the period |  | R$ 17 |

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