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36. COMMITMENTS (Details) R$ in Millions | Dec. 31, 2019 BRL (R$)
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Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | R$ 200,803
Purchase of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 40,620
Purchase Of Energy Auctions [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 77,259
Purchase Of Energy Bilateral Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 1,707
Quotas of Angra 1 And Angra 2 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 7,829
Transport of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 2,685
Other Energy Purchase Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 53,448
Physical Quota Guarantees [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 17,255
2020 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 11,443
2020 [Member] | Purchase of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 1,701
2020 [Member] | Purchase Of Energy Auctions [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 4,408
2020 [Member] | Purchase Of Energy Bilateral Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 334
2020 [Member] | Quotas of Angra 1 And Angra 2 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 296
2020 [Member] | Transport of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 240
2020 [Member] | Other Energy Purchase Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 3,619
2020 [Member] | Physical Quota Guarantees [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 845
2021 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 10,597
2021 [Member] | Purchase of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 1,538
2021 [Member] | Purchase Of Energy Auctions [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 4,081
2021 [Member] | Purchase Of Energy Bilateral Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 334
2021 [Member] | Quotas of Angra 1 And Angra 2 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 289
2021 [Member] | Transport of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 251
2021 [Member] | Other Energy Purchase Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 3,347
2021 [Member] | Physical Quota Guarantees [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 757
2022 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 10,988
2022 [Member] | Purchase of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 1,538
2022 [Member] | Purchase Of Energy Auctions [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 4,035
2022 [Member] | Purchase Of Energy Bilateral Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 334
2022 [Member] | Quotas of Angra 1 And Angra 2 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 291
2022 [Member] | Transport of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 264
2022 [Member] | Other Energy Purchase Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 3,808
2022 [Member] | Physical Quota Guarantees [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 718
2023 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 11,093
2023 [Member] | Purchase of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 1,568
2023 [Member] | Purchase Of Energy Auctions [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 4,281
2023 [Member] | Purchase Of Energy Bilateral Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 334
2023 [Member] | Quotas of Angra 1 And Angra 2 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 299
2023 [Member] | Transport of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 251
2023 [Member] | Other Energy Purchase Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 3,679
2023 [Member] | Physical Quota Guarantees [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 681
2024 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 11,604
2024 [Member] | Purchase of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 1,551
2024 [Member] | Purchase Of Energy Auctions [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 4,724
2024 [Member] | Purchase Of Energy Bilateral Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 223
2024 [Member] | Quotas of Angra 1 And Angra 2 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 302
2024 [Member] | Transport of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 238
2024 [Member] | Other Energy Purchase Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 3,913
2024 [Member] | Physical Quota Guarantees [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 653
After 2025 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 145,078
After 2025 [Member] | Purchase of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 32,724
After 2025 [Member] | Purchase Of Energy Auctions [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 55,730
After 2025 [Member] | Purchase Of Energy Bilateral Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 148
After 2025 [Member] | Quotas of Angra 1 And Angra 2 [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 6,352
After 2025 [Member] | Transport of Energy From Itaipu [Member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 1,441
After 2025 [Member] | Other Energy Purchase Contracts [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | 35,082
After 2025 [Member] | Physical Quota Guarantees [member] |
Disclosure of detailed information about financial instruments [line items] |
Total contractual obligations and commitments | R$ 13,601

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