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34 Operating Segments (Details 1) - BRL (R$) R$ in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 02, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | R$ 16,244,274 | R$ 14,934,780 | R$ 14,024,573
Net operating revenues - third-parties |  | 16,244,274 | 14,934,780 | 14,024,573
Net operating revenues - between segments |  |  |  |
OPERATING COSTS AND EXPENSES |  | (13,160,350) | (12,676,621) | (11,984,931)
Energy purchased for resale |  | (6,105,274) | (6,361,178) | (6,065,450)
Charges for use of the main transmission grid |  | (1,249,275) | (1,176,780) | (712,030)
Personnel and management |  | (1,325,382) | (1,357,785) | (1,343,344)
Pension and healthcare plans |  | (238,326) | (243,750) | (237,597)
Materials and supplies |  | (82,152) | (81,757) | (83,124)
Raw materials and supplies for generation |  | (49,352) | (19,729) | (97,360)
Natural gas and supplies for gas business |  | (585,233) | (412,618) | (309,542)
Third party services |  | (613,121) | (572,227) | (521,515)
Depreciation and amortization |  | (1,093,836) | (749,179) | (731,599)
Provision (reversal) for litigations |  | (257,921) | (219,636) | (386,373)
Impairment of assets |  | 120,689 | 18,920 | 122,782
Other estimated losses, provisions and reversals |  | (237,583) | (105,981) | (101,948)
Construction cost |  | (1,091,396) | (1,052,208) | (1,003,881)
Other operating costs and expenses, net |  | (458,815) | (302,690) | (464,316)
EQUITY IN EARNINGS OF INVESTEES |  | 106,757 | 135,888 | 101,739
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | 3,190,681 | 2,394,047 | 2,141,381
Financial income |  | 750,241 | 813,915 | 699,310
Financial expenses |  | (1,238,727) | (1,251,965) | (1,447,750)
OPERATING PROFIT (LOSS) |  | 2,702,195 | 1,955,997 | 1,392,941
Income tax and social contribution |  | (639,326) | (511,993) | (274,686)
Net income (loss) | R$ 2,070,551 | 2,062,869 | 1,444,004 | 1,118,255
Electricity GET GER [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | 3,368,375 | 3,007,565 | 3,176,811
Net operating revenues - third-parties |  | 2,233,367 | 2,116,875 | 2,851,644
Net operating revenues - between segments |  | 1,135,008 | 890,690 | 325,167
OPERATING COSTS AND EXPENSES |  | (1,659,225) | (1,619,431) | (1,768,390)
Energy purchased for resale |  | (262,288) | (417,918) | (290,019)
Charges for use of the main transmission grid |  | (451,107) | (408,347) | (352,958)
Personnel and management |  | (217,792) | (214,855) | (218,456)
Pension and healthcare plans |  | (37,955) | (36,379) | (38,782)
Materials and supplies |  | (10,987) | (11,637) | (12,463)
Raw materials and supplies for generation |  | (50,388) | (25,367) | (102,719)
Natural gas and supplies for gas business |  |  |  |
Third party services |  | (108,309) | (119,668) | (120,993)
Depreciation and amortization |  | (551,576) | (353,916) | (368,987)
Provision (reversal) for litigations |  | (45,212) | 18,059 | (39,733)
Impairment of assets |  | 117,648 | 22,312 | 3,886
Other estimated losses, provisions and reversals |  | 43,207 | 55,457 | (9,397)
Construction cost |  |  |  |
Other operating costs and expenses, net |  | (84,466) | (127,172) | (217,769)
EQUITY IN EARNINGS OF INVESTEES |  | 14,840 | 5,514 | (5,777)
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | 1,723,990 | 1,393,648 | 1,302,644
Financial income |  | 80,632 | 119,196 | 73,433
Financial expenses |  | (457,528) | (517,832) | (565,837)
OPERATING PROFIT (LOSS) |  | 1,347,094 | 995,012 | 810,240
Income tax and social contribution |  | (289,831) | (327,598) | (191,899)
Net income (loss) |  | 1,057,263 | 667,414 | 618,341
Electricity GET TRA [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | 871,510 | 904,826 | 819,623
Net operating revenues - third-parties |  | 643,596 | 680,567 | 640,199
Net operating revenues - between segments |  | 227,914 | 224,259 | 179,424
OPERATING COSTS AND EXPENSES |  | (479,538) | (561,850) | (546,510)
Energy purchased for resale |  |  |  |
Charges for use of the main transmission grid |  |  |  |
Personnel and management |  | (139,662) | (147,139) | (122,515)
Pension and healthcare plans |  | (25,027) | (25,884) | (22,733)
Materials and supplies |  | (3,766) | (5,054) | (4,732)
Raw materials and supplies for generation |  |  |  |
Natural gas and supplies for gas business |  |  |  |
Third party services |  | (38,092) | (33,489) | (24,609)
Depreciation and amortization |  | (12,987) | (11,386) | (7,201)
Provision (reversal) for litigations |  | (24,398) | 7,879 | (81,210)
Impairment of assets |  |  |  |
Other estimated losses, provisions and reversals |  | (41,350) | (49,486) | 1,107
Construction cost |  | (175,220) | (277,259) | (272,216)
Other operating costs and expenses, net |  | (19,036) | (20,032) | (12,401)
EQUITY IN EARNINGS OF INVESTEES |  | 85,752 | 123,676 | 93,145
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | 477,724 | 466,652 | 366,258
Financial income |  | 20,637 | 29,163 | 13,313
Financial expenses |  | (138,947) | (136,455) | (123,707)
OPERATING PROFIT (LOSS) |  | 359,414 | 359,360 | 255,864
Income tax and social contribution |  | (54,695) | (75,361) | (30,515)
Net income (loss) |  | 304,719 | 283,999 | 225,349
Electric Energy DIS [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | 10,401,301 | 9,972,442 | 9,358,664
Net operating revenues - third-parties |  | 10,352,690 | 9,932,267 | 9,324,633
Net operating revenues - between segments |  | 48,611 | 40,175 | 34,031
OPERATING COSTS AND EXPENSES |  | (9,579,915) | (9,474,473) | (9,071,359)
Energy purchased for resale |  | (5,424,207) | (5,577,719) | (5,717,970)
Charges for use of the main transmission grid |  | (1,044,135) | (1,012,062) | (554,805)
Personnel and management |  | (822,772) | (837,728) | (822,963)
Pension and healthcare plans |  | (155,784) | (159,842) | (154,285)
Materials and supplies |  | (64,419) | (60,379) | (60,320)
Raw materials and supplies for generation |  |  |  |
Natural gas and supplies for gas business |  |  |  |
Third party services |  | (397,390) | (339,399) | (347,393)
Depreciation and amortization |  | (343,597) | (301,581) | (285,835)
Provision (reversal) for litigations |  | (164,705) | (222,057) | (168,600)
Impairment of assets |  |  |  |
Other estimated losses, provisions and reversals |  | (137,680) | (77,985) | (83,916)
Construction cost |  | (904,023) | (741,855) | (717,351)
Other operating costs and expenses, net |  | (121,203) | (143,866) | (157,921)
EQUITY IN EARNINGS OF INVESTEES |  |  |  |
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | 821,386 | 497,969 | 287,305
Financial income |  | 355,152 | 335,377 | 380,597
Financial expenses |  | (273,909) | (308,319) | (343,540)
OPERATING PROFIT (LOSS) |  | 902,629 | 525,027 | 324,362
Income tax and social contribution |  | (201,236) | (148,244) | 22,893
Net income (loss) |  | 701,393 | 376,783 | 347,255
Com [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | 1,810,901 | 1,341,162 | 664,495
Net operating revenues - third-parties |  | 1,773,765 | 1,341,162 | 664,495
Net operating revenues - between segments |  | 37,136 |  |
OPERATING COSTS AND EXPENSES |  | (1,608,245) | (1,354,578) | (654,445)
Energy purchased for resale |  | (1,590,272) | (1,338,473) | (654,026)
Charges for use of the main transmission grid |  |  |  |
Personnel and management |  | (13,041) | (13,734) | (12,993)
Pension and healthcare plans |  | (1,481) | (1,507) | (1,415)
Materials and supplies |  | (15) | (65) | (27)
Raw materials and supplies for generation |  |  |  |
Natural gas and supplies for gas business |  |  |  |
Third party services |  | (1,718) | (1,700) | (1,280)
Depreciation and amortization |  | (44) | (16) | (9)
Provision (reversal) for litigations |  | (156) | 9 | (156)
Impairment of assets |  |  |  |
Other estimated losses, provisions and reversals |  | (4) | (935) |
Construction cost |  |  |  |
Other operating costs and expenses, net |  | (1,514) | 1,843 | 15,461
EQUITY IN EARNINGS OF INVESTEES |  | (280) | (15) | (564)
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | 202,376 | (13,431) | 9,486
Financial income |  | 3,004 | 6,065 | 6,515
Financial expenses |  | (220) | (104) | (322)
OPERATING PROFIT (LOSS) |  | 205,160 | (7,470) | 15,679
Income tax and social contribution |  | (69,854) | 2,632 | (2,638)
Net income (loss) |  | 135,306 | (4,838) | 13,041
TEL [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | 418,030 | 421,408 | 380,550
Net operating revenues - third-parties |  | 375,030 | 364,741 | 306,473
Net operating revenues - between segments |  | 43,000 | 56,667 | 74,077
OPERATING COSTS AND EXPENSES |  | (604,616) | (369,201) | (286,363)
Energy purchased for resale |  |  |  |
Charges for use of the main transmission grid |  |  |  |
Personnel and management |  | (73,890) | (92,472) | (107,874)
Pension and healthcare plans |  | (11,384) | (13,892) | (14,800)
Materials and supplies |  | (1,955) | (1,763) | (2,978)
Raw materials and supplies for generation |  |  |  |
Natural gas and supplies for gas business |  |  |  |
Third party services |  | (87,113) | (91,127) | (67,612)
Depreciation and amortization |  | (152,863) | (58,209) | (39,553)
Provision (reversal) for litigations |  | (14,072) | (12,844) | (3,648)
Impairment of assets |  |  |  |
Other estimated losses, provisions and reversals |  | (100,691) | (12,749) | (8,309)
Construction cost |  |  |  |
Other operating costs and expenses, net |  | (162,648) | (86,145) | (41,589)
EQUITY IN EARNINGS OF INVESTEES |  |  |  |
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | (186,586) | 52,207 | 94,187
Financial income |  | 20,760 | 16,808 | 11,828
Financial expenses |  | (53,857) | (41,713) | (30,691)
OPERATING PROFIT (LOSS) |  | (219,683) | 27,302 | 75,324
Income tax and social contribution |  | 68,644 | (2,853) | (21,272)
Net income (loss) |  | (151,039) | 24,449 | 54,052
GAS [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | 866,884 | 588,532 | 515,563
Net operating revenues - third-parties |  | 865,826 | 582,895 | 510,010
Net operating revenues - between segments |  | 1,058 | 5,637 | 5,553
OPERATING COSTS AND EXPENSES |  | (662,306) | (515,594) | (309,213)
Energy purchased for resale |  |  |  |
Charges for use of the main transmission grid |  |  |  |
Personnel and management |  | (36,932) | (34,896) | (35,761)
Pension and healthcare plans |  | (4,122) | (3,881) | (3,577)
Materials and supplies |  | (217) | (2,110) | (1,936)
Raw materials and supplies for generation |  |  |  |
Natural gas and supplies for gas business |  | (585,233) | (412,618) | (309,542)
Third party services |  | (12,971) | (17,034) | (22,670)
Depreciation and amortization |  | (30,480) | (22,759) | (28,753)
Provision (reversal) for litigations |  | (292) | (154) | 854
Impairment of assets |  |  |  | 123,586
Other estimated losses, provisions and reversals |  | (1,063) | (6,017) | (1,433)
Construction cost |  | (12,153) | (13,478) | (14,314)
Other operating costs and expenses, net |  | 21,157 | (2,647) | (15,667)
EQUITY IN EARNINGS OF INVESTEES |  |  |  |
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | 204,578 | 72,938 | 206,350
Financial income |  | 53,625 | 29,454 | 38,821
Financial expenses |  | (10,439) | (31,865) | (64,433)
OPERATING PROFIT (LOSS) |  | 247,764 | 70,527 | 180,738
Income tax and social contribution |  | (74,791) | (10,909) | (66,785)
Net income (loss) |  | 172,973 | 59,618 | 113,953
HOL [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  |  |  |
Net operating revenues - third-parties |  |  |  |
Net operating revenues - between segments |  |  |  |
OPERATING COSTS AND EXPENSES |  | (59,232) | (57,993) | (139,784)
Energy purchased for resale |  |  |  |
Charges for use of the main transmission grid |  |  |  |
Personnel and management |  | (21,293) | (16,961) | (22,782)
Pension and healthcare plans |  | (2,573) | (2,365) | (2,005)
Materials and supplies |  | (793) | (749) | (668)
Raw materials and supplies for generation |  |  |  |
Natural gas and supplies for gas business |  |  |  |
Third party services |  | (16,734) | (32,311) | (15,089)
Depreciation and amortization |  | (2,289) | (1,312) | (1,261)
Provision (reversal) for litigations |  | (9,086) | (10,528) | (93,880)
Impairment of assets |  | 3,041 | 1,648 | (4,690)
Other estimated losses, provisions and reversals |  | (2) | (14,266) |
Construction cost |  |  |  |
Other operating costs and expenses, net |  | (9,503) | 18,851 | 591
EQUITY IN EARNINGS OF INVESTEES |  | 6,445 | 6,713 | 14,935
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  | (52,787) | (51,280) | (124,849)
Financial income |  | 217,057 | 305,344 | 186,660
Financial expenses |  | (304,453) | (243,169) | (331,077)
OPERATING PROFIT (LOSS) |  | (140,183) | 10,895 | (269,266)
Income tax and social contribution |  | (17,563) | 41,957 | 15,530
Net income (loss) |  | (157,746) | 52,852 | (253,736)
Intersegment Operations [Member] |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
NET OPERATING REVENUE |  | (1,492,727) | (1,301,155) | (891,133)
Net operating revenues - third-parties |  |  | (83,727) | (272,881)
Net operating revenues - between segments |  | (1,492,727) | (1,217,428) | (618,252)
OPERATING COSTS AND EXPENSES |  | 1,492,727 | 1,276,499 | 891,133
Energy purchased for resale |  | 1,171,493 | 972,932 | 596,565
Charges for use of the main transmission grid |  | 245,967 | 243,629 | 195,733
Personnel and management |  |  |  |
Pension and healthcare plans |  |  |  |
Materials and supplies |  |  |  |
Raw materials and supplies for generation |  | 1,036 | 5,638 | 5,359
Natural gas and supplies for gas business |  |  |  |
Third party services |  | 49,206 | 62,501 | 78,131
Depreciation and amortization |  |  |  |
Provision (reversal) for litigations |  |  |  |
Impairment of assets |  |  | (5,040) |
Other estimated losses, provisions and reversals |  |  |  |
Construction cost |  |  | (19,616) |
Other operating costs and expenses, net |  | 25,025 | 16,455 | 15,345
EQUITY IN EARNINGS OF INVESTEES |  |  |  |
PROFIT (LOSS) BEFORE FINANCIAL INCOME AND TAX |  |  | (24,656) |
Financial income |  | (626) | (27,492) | (11,857)
Financial expenses |  | R$ 626 | 27,492 | 11,857
OPERATING PROFIT (LOSS) |  |  | (24,656) |
Income tax and social contribution |  |  | 8,383 |
Net income (loss) |  |  | R$ (16,273) |

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