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Operating Costs and Expenses - Schedule of Other Operating Expenses (Revenues), Net (Details) - BRL (R$) R$ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Personnel |  | R$ 1,308 | R$ 1,352 | R$ 1,241
Employees’ and managers’ income sharing |  | 157 | 83 | 134
Post-employment benefits (Note 24) |  | 591 | 626 | 15
Materials |  | 140 | 148 | 94
Outsourced services |  | 1,902 | 1,706 | 1,450
Depreciation and amortization |  | 1,274 | 1,182 | 1,049
Operating provisions and adjustments for operating losses |  | 434 | 401 | 231
Expected credit losses of accounts receivable |  | 175 | 109 | 144
Reversal of provision for doubtful with related party - Renova |  | 1 | (54) |
Write-off of financial asset (Note 14) | R$ 172 |  | 172 |
Gains arising from the sale of equity interest |  | (319) | (52) |
Other operation costs and expenses |  | 504 | 396 | 394
Total |  | 6,167 | 6,069 | 4,752
Operating Cost [Member] |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Personnel |  | 1,000 | 976 | 983
Employees’ and managers’ income sharing |  |  |  |
Post-employment benefits (Note 24) |  |  |  |
Materials |  | 100 | 93 | 76
Outsourced services |  | 1,652 | 1,433 | 1,265
Depreciation and amortization |  | 1,247 | 1,110 | 947
Operating provisions and adjustments for operating losses |  | 333 | 278 | 86
Expected credit losses of accounts receivable |  |  |  |
Reversal of provision for doubtful with related party - Renova |  |  |  |
Write-off of financial asset (Note 14) |  |  |  |
Gains arising from the sale of equity interest |  |  |  |
Other operation costs and expenses |  | 240 | 205 | 81
Total |  | 4,572 | 4,095 | 3,438
Expected Credit Loss [Member] |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Personnel |  |  |  |
Employees’ and managers’ income sharing |  |  |  |
Post-employment benefits (Note 24) |  |  |  |
Materials |  |  |  |
Outsourced services |  |  |  |
Depreciation and amortization |  |  |  |
Operating provisions and adjustments for operating losses |  |  |  |
Expected credit losses of accounts receivable |  | 175 | 109 | 144
Reversal of provision for doubtful with related party - Renova |  |  |  |
Write-off of financial asset (Note 14) |  |  |  |
Gains arising from the sale of equity interest |  |  |  |
Other operation costs and expenses |  |  |  |
Total |  | 175 | 109 | 144
General And Administrative Expenses [Member] |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Personnel |  | 308 | 376 | 258
Employees’ and managers’ income sharing |  |  | 4 | 2
Post-employment benefits (Note 24) |  |  |  |
Materials |  | 40 | 55 | 18
Outsourced services |  | 250 | 273 | 185
Depreciation and amortization |  | 27 | 72 | 102
Operating provisions and adjustments for operating losses |  |  |  |
Expected credit losses of accounts receivable |  |  |  |
Reversal of provision for doubtful with related party - Renova |  |  |  |
Write-off of financial asset (Note 14) |  |  |  |
Gains arising from the sale of equity interest |  |  |  |
Other operation costs and expenses |  | 82 | 9 | 7
Total |  | 707 | 789 | 572
Other Operating Expenses (Revenue) [Member] |  |  |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |  |  |
Personnel |  |  |  |
Employees’ and managers’ income sharing |  | 157 | 79 | 132
Post-employment benefits (Note 24) |  | 591 | 626 | 15
Materials |  |  |  |
Outsourced services |  |  |  |
Depreciation and amortization |  |  |  |
Operating provisions and adjustments for operating losses |  | 101 | 123 | 145
Expected credit losses of accounts receivable |  |  |  |
Reversal of provision for doubtful with related party - Renova |  | 1 | (54) |
Write-off of financial asset (Note 14) |  |  | 172 |
Gains arising from the sale of equity interest |  | (319) | (52) |
Other operation costs and expenses |  | 182 | 182 | 306
Total |  | R$ 713 | R$ 1,076 | R$ 598

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