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Provisions for Legal Claims and Contingent Liabilities (Details) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | R$ 1,828,916 | R$ 2,037,599 |
Provision for litigations, additions | 375,226 | 343,808 |
Provision for litigations, reversals | (152,975) | (186,140) |
Construction cost, additions/(rev.) | (12,217) | (25,945) |
Monetary restatement | 96,964 | 77,715 |
Additions to assets | 10,471 | (41,380) |
Settlement | (345,138) | (373,616) |
Transfers/others | (844,551) | (3,125) |
Provisions for legal claims, ending | 956,696 | 1,828,916 |
Current provisions | 0 | 336,000 | R$ 0
Provisions for legal claims | 956,696 | 1,492,916 | R$ 2,037,599
Tax [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 208,430 | 201,750 |
Provision for litigations, additions | 13,588 | 9,671 |
Provision for litigations, reversals | (9,436) | (7,444) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | 23,723 | 7,355 |
Additions to assets | 0 | 0 |
Settlement | (19,073) | (15,955) |
Transfers/others | 0 | 13,053 |
Provisions for legal claims, ending | 217,232 | 208,430 |
Tax [Member] | Cofins [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 133,371 | 123,564 |
Provision for litigations, additions | 0 | 0 |
Provision for litigations, reversals | 0 | 0 |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | 10,460 | 9,807 |
Additions to assets | 0 | 0 |
Settlement | 0 | 0 |
Transfers/others | 0 | 0 |
Provisions for legal claims, ending | 143,831 | 133,371 |
Tax [Member] | Other provisions for legal claims [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 75,059 | 78,186 |
Provision for litigations, additions | 13,588 | 9,671 |
Provision for litigations, reversals | (9,436) | (7,444) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | 13,263 | (2,452) |
Additions to assets | 0 | 0 |
Settlement | (19,073) | (15,955) |
Transfers/others | 0 | 13,053 |
Provisions for legal claims, ending | 73,401 | 75,059 |
Labors [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 386,639 | 536,464 |
Provision for litigations, additions | 157,965 | 103,916 |
Provision for litigations, reversals | (84,258) | (65,292) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | 6,358 | 43,877 |
Additions to assets | 0 | (91) |
Settlement | (159,619) | (231,859) |
Transfers/others | 0 | (376) |
Provisions for legal claims, ending | 307,085 | 386,639 |
Employee Benefits [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 37,516 | 30,126 |
Provision for litigations, additions | 7,951 | 12,234 |
Provision for litigations, reversals | (1,311) | (4,328) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | 0 | 0 |
Additions to assets | 0 | 0 |
Settlement | (3,687) | (516) |
Transfers/others | 0 | 0 |
Provisions for legal claims, ending | 40,469 | 37,516 |
Civil [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 1,188,593 | 1,260,766 |
Provision for litigations, additions | 189,806 | 134,279 |
Provision for litigations, reversals | (52,936) | (24,312) |
Construction cost, additions/(rev.) | (12,217) | (25,945) |
Monetary restatement | 66,158 | 25,894 |
Additions to assets | 10,471 | (41,289) |
Settlement | (162,365) | (124,998) |
Transfers/others | (844,551) | (15,802) |
Provisions for legal claims, ending | 382,959 | 1,188,593 |
Civil [Member] | Civil And Administrative Claims [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 954,667 | 958,111 |
Provision for litigations, additions | 188,730 | 124,092 |
Provision for litigations, reversals | (47,880) | (19,763) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | 67,389 | 26,818 |
Additions to assets | (269) | 278 |
Settlement | (150,812) | (119,067) |
Transfers/others | (843,600) | (15,802) |
Provisions for legal claims, ending | 168,225 | 954,667 |
Civil [Member] | Easements [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 114,125 | 138,724 |
Provision for litigations, additions | 286 | 1,748 |
Provision for litigations, reversals | (1,977) | 0 |
Construction cost, additions/(rev.) | (15,308) | (21,596) |
Monetary restatement | 0 | 0 |
Additions to assets | 2,065 | 1,133 |
Settlement | (1,220) | (5,884) |
Transfers/others | 0 | 0 |
Provisions for legal claims, ending | 97,971 | 114,125 |
Civil [Member] | Expropriations And Property [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 112,764 | 154,912 |
Provision for litigations, additions | 528 | 6,856 |
Provision for litigations, reversals | (2,074) | (1,461) |
Construction cost, additions/(rev.) | 3,091 | (4,349) |
Monetary restatement | 200 | (535) |
Additions to assets | 8,675 | (42,700) |
Settlement | (10,198) | 41 |
Transfers/others | (951) | 0 |
Provisions for legal claims, ending | 112,035 | 112,764 |
Civil [Member] | Customers [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 2,444 | 3,750 |
Provision for litigations, additions | 160 | 319 |
Provision for litigations, reversals | (198) | (1,676) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | (1,365) | 0 |
Additions to assets | 0 | 0 |
Settlement | (135) | 51 |
Transfers/others | 0 | 0 |
Provisions for legal claims, ending | 906 | 2,444 |
Civil [Member] | Environmental [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 4,593 | 5,269 |
Provision for litigations, additions | 102 | 1,264 |
Provision for litigations, reversals | (807) | (1,412) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | (66) | (389) |
Additions to assets | 0 | 0 |
Settlement | 0 | (139) |
Transfers/others | 0 | 0 |
Provisions for legal claims, ending | 3,822 | 4,593 |
Regulatory [Member] |  |  |
Disclosure of fair value measurement of liabilities [line items] |  |  |
Provisions for legal claims, beginning | 7,738 | 8,493 |
Provision for litigations, additions | 5,916 | 83,708 |
Provision for litigations, reversals | (5,034) | (84,764) |
Construction cost, additions/(rev.) | 0 | 0 |
Monetary restatement | 725 | 589 |
Additions to assets | 0 | 0 |
Settlement | (394) | (288) |
Transfers/others | 0 | 0 |
Provisions for legal claims, ending | R$ 8,951 | R$ 7,738 |

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