XML 165 R131.htm IDEA: XBRL DOCUMENT v3.25.1
Property, Plant and Equipment (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use R$ (17,616,769) R$ (20,247,087)  
Property, plant and equipment, Accumulated depreciation (9,100,072) (9,421,666)  
Property, plant and equipment, net (8,516,697) (10,825,421)  
Property Plant And Equipments R$ 8,516,697 R$ 10,825,421 R$ 10,069,468
Financing and debenture average rate 0.049% 0.051%  
In Service [Member] | Reservoirs Dams And Aqueducts [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use R$ (6,869,100) R$ (8,201,193)  
Property, plant and equipment, Accumulated depreciation (4,885,663) (5,068,855)  
Property, plant and equipment, net (1,983,437) (3,132,338)  
Property Plant And Equipments 1,983,437 3,132,338 3,274,774
In Service [Member] | Machinery [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (8,745,054) (9,790,697)  
Property, plant and equipment, Accumulated depreciation (3,206,049) (3,087,977)  
Property, plant and equipment, net (5,539,005) (6,702,720)  
Property Plant And Equipments 5,539,005 6,702,720 5,890,366
In Service [Member] | Buildings [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (1,398,552) (2,009,061)  
Property, plant and equipment, Accumulated depreciation (933,130) (1,176,398)  
Property, plant and equipment, net (465,422) (832,663)  
Property Plant And Equipments 465,422 832,663 841,252
In Service [Member] | Land [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (388,270) (499,020)  
Property, plant and equipment, Accumulated depreciation (58,358) (69,256)  
Property, plant and equipment, net (329,912) (429,764)  
Property Plant And Equipments 329,912 429,764 451,524
In Service [Member] | Vehicles [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (12,811) (13,056)  
Property, plant and equipment, Accumulated depreciation (10,673) (11,120)  
Property, plant and equipment, net (2,138) (1,936)  
Property Plant And Equipments 2,138 1,936 2,342
In Service [Member] | Furniture And Tools [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (12,449) (14,296)  
Property, plant and equipment, Accumulated depreciation (6,880) (8,570)  
Property, plant and equipment, net (5,569) (5,726)  
Property Plant And Equipments 5,569 5,726 6,136
In Service [Member] | Provision For Impairment [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use 0 (674,077)  
Property, plant and equipment, Accumulated depreciation 0 0  
Property, plant and equipment, net 0 (674,077)  
Property Plant And Equipments 0 (674,077) (785,205)
In Service [Member] | Special Obligations [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (19,223) (6,877)  
Property, plant and equipment, Accumulated depreciation 681 510  
Property, plant and equipment, net (18,542) (6,367)  
Property Plant And Equipments (18,542) (6,367) (418)
In Service [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (17,407,013) (19,846,369)  
Property, plant and equipment, Accumulated depreciation (9,100,072) (9,421,666)  
Property, plant and equipment, net (8,306,941) (10,424,703)  
Property Plant And Equipments 8,306,941 10,424,703 9,680,771
In Progress [Member] | Provision For Impairment [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (14,879) (14,879)  
Property, plant and equipment, Accumulated depreciation 0 0  
Property, plant and equipment, net (14,879) (14,879)  
Property Plant And Equipments (14,879) (14,879) (186,383)
In Progress [Member] | Cost [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (224,635) (415,597)  
Property, plant and equipment, Accumulated depreciation 0 0  
Property, plant and equipment, net (224,635) (415,597)  
Property Plant And Equipments 224,635 415,597 575,080
In Progress [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Property, plant and equipment, gross carrying amount of fully depreciated assets still in use (209,756) (400,718)  
Property, plant and equipment, Accumulated depreciation 0 0  
Property, plant and equipment, net (209,756) (400,718)  
Property Plant And Equipments R$ 209,756 R$ 400,718 R$ 388,697