v3.26.1
FINANCIAL INSTRUMENTS (Details 9) - Cash flow hedges [member] - Currency risk [member]
R$ in Thousands
12 Months Ended
Dec. 31, 2025
BRL (R$)
IfrsStatementLineItems [Line Items]  
Designated amounts R$ 7,893,118
Amortized part (3,509,107)
Effect on Result (573,825)
Impact on Shareholders' equity R$ (4,900,466)
Bonds And Export Prepayments In U S To Third Parties [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 07/31/2019
Hedging instrument Bonds and Export prepayments in US$ to third parties
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period January 2020 - April 2026
Exchange rate on designation 3.7649
Designated amounts R$ 1,342,761
Amortized part (965,961)
Effect on Result (163,673)
Impact on Shareholders' equity R$ (654,690)
Bond [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 01/10/2020
Hedging instrument Bonds
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period March 2020 to November 2025 until December 2050
Exchange rate on designation 4.0745
Designated amounts R$ 1,416,000
Amortized part (1,416,000)
Effect on Result (75,717)
Impact on Shareholders' equity R$ (1,214,600)
Bond One [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 01/28/2020
Hedging instrument Bonds
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period March 2027 - January 2028
Exchange rate on designation 4.2064
Designated amounts R$ 1,000,000
Impact on Shareholders' equity R$ (1,296,000)
Advance On Foreign Exchange Contract [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 06/06/2024
Hedging instrument Advance on foreign exchange contract
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period June 2024 - February 2025
Exchange rate on designation 5.2700
Designated amounts R$ 30,000
Amortized part (30,000)
Effect on Result R$ (17,961)
Bonds And Export Prepayments In U S To Third Parties One [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 06/01/2022
Hedging instrument Bonds and Export prepayments in US$ to third parties
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period June 2022 - April 2032
Exchange rate on designation 4.7289
Designated amounts R$ 1,145,000
Amortized part (360,000)
Effect on Result (130,497)
Impact on Shareholders' equity R$ (607,198)
Bond Two [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 12/01/2022
Hedging instrument Bonds
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period December 2022 - June 2031
Exchange rate on designation 5.0360
Designated amounts R$ 490,000
Amortized part (37,000)
Impact on Shareholders' equity R$ (211,279)
Advance On Foreign Exchange Contract One [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 12/01/2022
Hedging instrument Advance on foreign exchange contract
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period December 2022 - December 2025
Exchange rate on designation 5.2565
Designated amounts R$ 100,000
Amortized part (100,000)
Effect on Result R$ (24,590)
Export Prepayments In U S With Third Parties A C C And Bonds [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 05/16/2024
Hedging instrument Export Prepayments in US$ with third parties, ACC and Bonds
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period September 2024 - March 2035
Exchange rate on designation 5.1270
Designated amounts R$ 1,202,000
Amortized part (248,400)
Effect on Result (71,590)
Impact on Shareholders' equity R$ (357,981)
Advance On Foreign Exchange Contract Two [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 06/25/2024
Hedging instrument Advance on foreign exchange contract
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period June 2024 - February 2025
Exchange rate on designation 5.4405
Designated amounts R$ 10,000
Amortized part (10,000)
Effect on Result R$ (2,853)
Export Prepayments In U S To Third Parties [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 06/01/2022
Hedging instrument Export prepayments in US$ to third parties
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period June 2022 - May 2033
Exchange rate on designation 4.7289
Designated amounts R$ 878,640
Amortized part (260,060)
Effect on Result (81,905)
Impact on Shareholders' equity R$ (478,472)
Export Prepayments In U S To Third Parties One [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 12/01/2022
Hedging instrument Export prepayments in US$ to third parties
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period December 2022 - June 2027
Exchange rate on designation 5.0360
Designated amounts R$ 70,000
Impact on Shareholders' equity R$ (32,559)
Export Prepayments In U S To Third Parties Two [Member]  
IfrsStatementLineItems [Line Items]  
Designation date 05/16/2024
Hedging instrument Export prepayments in US$ to third parties
Hedged item Part of the highly probable future monthly iron ore exports
Type of hedged risk Foreign exchange - R$ vs. US$ spot rate
Hedged period August 2025 - March 2035
Exchange rate on designation 5.1270
Designated amounts R$ 208,717
Amortized part (81,686)
Effect on Result (5,039)
Impact on Shareholders' equity R$ (47,687)