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Borrowings and financing (Details 3) - BRL (R$) R$ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | R$ 19,536,350 | R$ 18,958,671
Addition (lease) | 130,666 | 320
Funding | 2,948,335 | 123,715
Borrowing costs | (8,640) | (2,104)
Inflation adjustment and exchange rate changes | 47,701 | (13,316)
Inflation adjustment / exchange variation and incorporated interest - Capitalized | 11,918 | 8,165
Interest paid | (473,596) | (543,850)
Amortization | (660,026) | (716,239)
Accrued interest | 344,775 | 316,805
Provision for interest and fees - Capitalized | 142,477 | 159,637
Expenses with borrowing costs | 4,347 | 4,119
Borrowings and financing, ending | 22,024,307 | 18,295,923
Local Currency [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 16,790,459 | 16,182,913
Addition (lease) | 130,666 | 320
Funding | 2,948,335 | 54,481
Borrowing costs | (7,319) | (516)
Inflation adjustment and exchange rate changes | 54,036 | 70,509
Inflation adjustment / exchange variation and incorporated interest - Capitalized | 11,918 | 8,165
Interest paid | (443,981) | (517,258)
Amortization | (553,139) | (595,141)
Accrued interest | 316,055 | 295,756
Provision for interest and fees - Capitalized | 142,326 | 159,071
Expenses with borrowing costs | 3,859 | 3,621
Borrowings and financing, ending | 19,393,215 | 15,661,921
Local Currency [Member] | Debentures [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 7,534,818 | 8,166,366
Addition (lease) |  |
Funding | 2,940,478 |
Borrowing costs | (7,319) | (516)
Inflation adjustment and exchange rate changes | 51,281 | 60,883
Inflation adjustment / exchange variation and incorporated interest - Capitalized | 10,953 | 5,463
Interest paid | (166,538) | (206,330)
Amortization | (316,082) | (363,123)
Accrued interest | 151,082 | 162,197
Provision for interest and fees - Capitalized | 36,657 | 46,336
Expenses with borrowing costs | 2,731 | 2,859
Borrowings and financing, ending | 10,238,061 | 7,874,135
Local Currency [Member] | Brazilian Federal Savings Banks [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 1,621,014 | 1,526,185
Addition (lease) |  |
Funding | 7,857 | 50,852
Borrowing costs |  |
Inflation adjustment and exchange rate changes | 1,653 | 6,250
Inflation adjustment / exchange variation and incorporated interest - Capitalized | 412 | 1,718
Interest paid | (31,269) | (29,853)
Amortization | (26,495) | (27,891)
Accrued interest | 25,167 | 23,539
Provision for interest and fees - Capitalized | 6,056 | 6,393
Expenses with borrowing costs |  |
Borrowings and financing, ending | 1,604,395 | 1,557,193
Local Currency [Member] | B N D E S [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 1,341,472 | 1,380,993
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes | 1,096 | 3,354
Inflation adjustment / exchange variation and incorporated interest - Capitalized | 553 | 984
Interest paid | (24,734) | (25,753)
Amortization | (70,274) | (61,940)
Accrued interest | 16,743 | 19,891
Provision for interest and fees - Capitalized | 8,191 | 5,670
Expenses with borrowing costs | 59 | 65
Borrowings and financing, ending | 1,273,106 | 1,323,264
Local Currency [Member] | I D B 2202 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 2,252,742 | 2,450,550
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (132,871) | (165,514)
Amortization | (90,674) | (90,674)
Accrued interest | 34,753 | 26,253
Provision for interest and fees - Capitalized | 27,317 | 58,942
Expenses with borrowing costs | 239 | 239
Borrowings and financing, ending | 2,091,506 | 2,279,796
Local Currency [Member] | I D B I N V E S T 2020 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 900,367 |
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (61,148) |
Amortization | (18,670) |
Accrued interest |  |
Provision for interest and fees - Capitalized | 28,095 |
Expenses with borrowing costs | 165 |
Borrowings and financing, ending | 848,809 |
Local Currency [Member] | I F C 2022 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 757,297 |
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  |
Amortization |  |
Accrued interest | 8,217 |
Provision for interest and fees - Capitalized | 15,647 |
Expenses with borrowing costs | 229 |
Borrowings and financing, ending | 781,390 |
Local Currency [Member] | I F C 2023 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 1,006,642 |
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  |
Amortization |  |
Accrued interest | 10,690 |
Provision for interest and fees - Capitalized | 20,362 |
Expenses with borrowing costs | 355 |
Borrowings and financing, ending | 1,038,049 |
Local Currency [Member] | I D B I N V E S T 2022 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 454,543 | 469,327
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  |
Amortization |  |
Accrued interest | 14,842 | 18,405
Provision for interest and fees - Capitalized |  |
Expenses with borrowing costs | 64 | 64
Borrowings and financing, ending | 469,449 | 487,796
Local Currency [Member] | I D B I N V E S T 2023 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 464,131 |
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  |
Amortization |  |
Accrued interest | 15,038 |
Provision for interest and fees - Capitalized |  |
Expenses with borrowing costs | 17 |
Borrowings and financing, ending | 479,186 |
Local Currency [Member] | Leases Concession Agreements Program Contracts And Contract Assets [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 309,210 | 357,844
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (27,329) | (13,603)
Amortization |  | (10,873)
Accrued interest | 30,556 | 13,603
Provision for interest and fees - Capitalized |  |
Expenses with borrowing costs |  |
Borrowings and financing, ending | 312,437 | 346,971
Local Currency [Member] | Leases Others [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 142,300 | 101,374
Addition (lease) | 130,666 | 320
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  | (4,523)
Amortization | (30,193) | (20,389)
Accrued interest | 8,877 | 9,047
Provision for interest and fees - Capitalized |  |
Expenses with borrowing costs |  |
Borrowings and financing, ending | 251,650 | 85,829
Local Currency [Member] | Other Borrowings [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 5,923 | 12,130
Addition (lease) |  |
Funding |  | 3,629
Borrowing costs |  |
Inflation adjustment and exchange rate changes | 6 | 22
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (92) | (161)
Amortization | (751) | (1,581)
Accrued interest | 90 | 160
Provision for interest and fees - Capitalized | 1 | 2
Expenses with borrowing costs |  |
Borrowings and financing, ending | 5,177 | 14,201
Local Currency [Member] | I D B I N V E S T [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning |  | 943,619
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  | (71,521)
Amortization |  | (18,670)
Accrued interest |  | 22,661
Provision for interest and fees - Capitalized |  | 12,244
Expenses with borrowing costs |  | 166
Borrowings and financing, ending |  | 888,499
Local Currency [Member] | I F C [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning |  | 774,525
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  |
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  |
Amortization |  |
Accrued interest |  |
Provision for interest and fees - Capitalized |  | 29,484
Expenses with borrowing costs |  | 228
Borrowings and financing, ending |  | 804,237
Foreign Currency [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 2,745,891 | 2,775,758
Addition (lease) |  |
Funding |  | 69,234
Borrowing costs | (1,321) | (1,588)
Inflation adjustment and exchange rate changes | (6,335) | (83,825)
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (29,615) | (26,592)
Amortization | (106,887) | (121,098)
Accrued interest | 28,720 | 21,049
Provision for interest and fees - Capitalized | 151 | 566
Expenses with borrowing costs | 488 | 498
Borrowings and financing, ending | 2,631,092 | 2,634,002
Foreign Currency [Member] | I D Bs [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 819,455 | 532,693
Addition (lease) |  |
Funding |  | 50,342
Borrowing costs |  |
Inflation adjustment and exchange rate changes | 26,441 | (15,365)
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (2,457) | (2,474)
Amortization | (25,359) | (26,343)
Accrued interest | 13,639 | 5,062
Provision for interest and fees - Capitalized |  |
Expenses with borrowing costs | 298 | 237
Borrowings and financing, ending | 832,017 | 544,152
Foreign Currency [Member] | I B R D [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 515,015 | 399,762
Addition (lease) |  |
Funding |  | 18,892
Borrowing costs | (1,321) | (1,588)
Inflation adjustment and exchange rate changes | 16,589 | (10,585)
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (16,507) | (10,061)
Amortization | (15,133) | (16,014)
Accrued interest | 10,076 | 8,691
Provision for interest and fees - Capitalized | 3 | 56
Expenses with borrowing costs | 139 | 106
Borrowings and financing, ending | 508,861 | 389,259
Foreign Currency [Member] | J I C A [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning | 1,411,421 | 1,803,109
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes | (49,365) | (56,819)
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid | (10,651) | (14,057)
Amortization | (66,395) | (78,741)
Accrued interest | 5,005 | 6,635
Provision for interest and fees - Capitalized | 148 | 289
Expenses with borrowing costs | 51 | 51
Borrowings and financing, ending | R$ 1,290,214 | 1,660,467
Foreign Currency [Member] | I D B 1983 A B [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Borrowings and financing, beginning |  | 40,194
Addition (lease) |  |
Funding |  |
Borrowing costs |  |
Inflation adjustment and exchange rate changes |  | (1,056)
Inflation adjustment / exchange variation and incorporated interest - Capitalized |  |
Interest paid |  |
Amortization |  |
Accrued interest |  | 661
Provision for interest and fees - Capitalized |  | 221
Expenses with borrowing costs |  | 104
Borrowings and financing, ending |  | R$ 40,124

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