v3.26.1
RIGHT-OF-USE ASSETS - Schedule of Right-of-Use Assets (Details)
R$ in Thousands
 6 Months Ended
Jun. 30, 2026
BRL (R$)
Changes in property, plant and equipment [abstract]  
Balance, beginning of period R$ 2,772,299
Balance, end of period 2,448,066
Right-of-use assets | Cost  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period 21,135,018
Additions 1,723,798
Write-offs (1,663,583)
Modifications (4,964)
Transfers 29,352
Balance, end of period 21,219,621
Right-of-use assets | Cost | Aircraft, engines and simulators  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period 16,871,616
Additions 1,082,803
Write-offs (1,137,606)
Modifications (27,344)
Transfers 29,352
Balance, end of period 16,818,821
Right-of-use assets | Cost | Maintenance  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period 2,966,123
Additions 548,829
Write-offs (353,482)
Modifications 0
Transfers 0
Balance, end of period 3,161,470
Right-of-use assets | Cost | Restorations  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period 911,522
Additions 61,215
Write-offs (168,000)
Modifications 21,624
Transfers 0
Balance, end of period 826,361
Right-of-use assets | Cost | Others  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period 385,757
Additions 30,951
Write-offs (4,495)
Modifications 756
Transfers 0
Balance, end of period 412,969
Right-of-use assets | Depreciation  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period (11,009,994)
Additions (1,180,957)
Write-offs 817,382
Modifications 0
Transfers 0
Balance, end of period (11,373,569)
Right-of-use assets | Depreciation | Aircraft, engines and simulators  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period (9,023,486)
Additions (754,249)
Write-offs 628,580
Modifications 0
Transfers 0
Balance, end of period (9,149,155)
Right-of-use assets | Depreciation | Maintenance  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period (1,230,207)
Additions (283,529)
Write-offs 60,982
Modifications 0
Transfers 0
Balance, end of period (1,452,754)
Right-of-use assets | Depreciation | Restorations  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period (560,763)
Additions (102,347)
Write-offs 127,374
Modifications 0
Transfers 0
Balance, end of period (535,736)
Right-of-use assets | Depreciation | Others  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period (195,538)
Additions (40,832)
Write-offs 446
Modifications 0
Transfers 0
Balance, end of period R$ (235,924)
Right-of-use assets | Depreciation | Weighted average rate (p.a.) | Aircraft, engines and simulators  
Disclosure of detailed information about property and equipment [line items]  
Weighted average rate (p.a.) 9.00%
Right-of-use assets | Depreciation | Weighted average rate (p.a.) | Maintenance  
Disclosure of detailed information about property and equipment [line items]  
Weighted average rate (p.a.) 19.00%
Right-of-use assets | Depreciation | Weighted average rate (p.a.) | Restorations  
Disclosure of detailed information about property and equipment [line items]  
Weighted average rate (p.a.) 22.00%
Right-of-use assets | Depreciation | Weighted average rate (p.a.) | Others  
Disclosure of detailed information about property and equipment [line items]  
Weighted average rate (p.a.) 21.00%
Right-of-use assets | Right-of-use assets, net  
Changes in property, plant and equipment [abstract]  
Balance, beginning of period R$ 10,125,024
Additions 542,841
Write-offs (846,201)
Modifications (4,964)
Transfers 29,352
Balance, end of period R$ 9,846,052