XML 163 R145.htm IDEA: XBRL DOCUMENT v3.21.1
17 Property, Plant and Equipment (Details 1) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [line items]    
Additions/Reversal of impairment R$ 366,298 R$ 582,259
Depreciation (682,044) (665,182)
Loss on disposal (95,122) (158,084)
Transfers (685,775) (7,553)
Property, plant and equipment, ending 9,495,460  
In Service [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 10,019,517 6,248,576
Additions/Reversal of impairment 89,050 61,112
Depreciation (682,044) (665,182)
Loss on disposal (86,996) (142,544)
Transfers (454,413) 4,517,555
Property, plant and equipment, ending 8,885,114 10,019,517
In Service [member] | Reservoirs, Dams and Aqueducts [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 3,676,692 2,426,474
Additions/Reversal of impairment
Depreciation (195,062) (188,334)
Loss on disposal (42)
Transfers (239) 1,438,594
Property, plant and equipment, ending 3,481,391 3,676,692
In Service [member] | Machinery and Equipment [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 6,003,890 2,974,142
Additions/Reversal of impairment
Depreciation (431,088) (409,571)
Loss on disposal (86,550) (141,902)
Transfers 160,968 3,581,221
Property, plant and equipment, ending 5,024,232 6,003,890
In Service [member] | Buildings [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 908,024 479,207
Additions/Reversal of impairment
Depreciation (42,593) (52,330)
Loss on disposal (83)
Transfers 7,227 481,147
Property, plant and equipment, ending 872,575 908,024
In Service [member] | Land [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 462,420 357,102
Additions/Reversal of impairment
Depreciation (10,617) (9,466)
Loss on disposal (2) (463)
Transfers 107 115,247
Property, plant and equipment, ending 451,908 462,420
In Service [member] | Vehicles and Aircraft [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 3,084 5,766
Additions/Reversal of impairment
Depreciation (1,171) (3,482)
Loss on disposal (123) (128)
Transfers 102 928
Property, plant and equipment, ending 1,892 3,084
In Service [member] | Furniture And Tools [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 7,949 9,415
Additions/Reversal of impairment
Depreciation (1,559) (2,007)
Loss on disposal (238) (9)
Transfers 664 550
Property, plant and equipment, ending 6,816 7,949
In Service [member] | Impairment (17.5) [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning (961,177)  
Additions/Reversal of impairment 35,656  
Depreciation  
Loss on disposal  
Transfers  
Property, plant and equipment, ending (925,521) (961,177)
In Service [member] | Impairment (17.6) [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning (81,322)  
Additions/Reversal of impairment 53,394  
Depreciation  
Loss on disposal  
Transfers  
Property, plant and equipment, ending (27,928) (81,322)
In Service [member] | Special Obligations [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning (43) (41)
Additions/Reversal of impairment
Depreciation 46 8
Loss on disposal
Transfers (254) (10)
Property, plant and equipment, ending (251) (43)
In Service [member] | Reclassification [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Additions/Reversal of impairment [1]  
Depreciation [1]  
Loss on disposal [1]  
Transfers [1] (622,988)  
Property, plant and equipment, ending (622,988)  
In Service [member] | Impairment [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning (1,042,499) (3,489)
Additions/Reversal of impairment   61,112
Depreciation  
Loss on disposal  
Transfers   (1,100,122)
Property, plant and equipment, ending   (1,042,499)
In Progress [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 572,586 4,592,087
Additions/Reversal of impairment 277,248 521,147
Depreciation
Loss on disposal (8,126) (15,540)
Transfers (231,362) (4,525,108)
Property, plant and equipment, ending 610,346 572,586
In Progress [member] | Impairment (17.5) [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning (122,261)  
Additions/Reversal of impairment 1,953  
Depreciation  
Loss on disposal  
Transfers  
Property, plant and equipment, ending (120,308) (122,261)
In Progress [member] | Impairment (17.6) [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning (5,325)  
Additions/Reversal of impairment 1,472  
Depreciation  
Loss on disposal  
Transfers  
Property, plant and equipment, ending (3,853) (5,325)
In Progress [member] | Reclassification [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning  
Additions/Reversal of impairment  
Depreciation  
Loss on disposal  
Transfers (61,309)  
Property, plant and equipment, ending (61,309)
In Progress [member] | Cost [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning 700,172 5,789,780
Additions/Reversal of impairment 273,823 551,162
Depreciation
Loss on disposal (8,126) (15,540)
Transfers (170,053) (5,625,230)
Property, plant and equipment, ending 734,507 700,172
In Progress [member] | Impairment [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Property, plant and equipment, beginning R$ (127,586) (1,197,693)
Additions/Reversal of impairment   (30,015)
Depreciation  
Loss on disposal  
Transfers   1,100,122
Property, plant and equipment, ending   R$ (127,586)
[1] Reclassification to Assets classified as held for sale (Note 40).