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Note 27 - Financial Instruments and Risks - Notional and Fair Value Amounts per Instrument and Maturity (Details) R$ in Millions | Dec. 31, 2017 BRL (R$)
--- | ---
Statement Line Items [Line Items] |
Notional value | R$ 12,438.3
Fair value of hedging instruments | 167.7
Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 11,966.7
Fair value of hedging instruments | 134.9
Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value | 99.7
Fair value of hedging instruments | 4.6
Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value | 15.0
Fair value of hedging instruments |
Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value | 110.0
Fair value of hedging instruments | 25.0
Later than five years [member] |
Statement Line Items [Line Items] |
Notional value | 246.9
Fair value of hedging instruments | 3.2
Total cost exposure [member] |
Statement Line Items [Line Items] |
Notional value | 9,318.9
Fair value of hedging instruments | 93.6
Total cost exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 9,219.2
Fair value of hedging instruments | 89.0
Total cost exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value | 99.7
Fair value of hedging instruments | 4.6
Total cost exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total cost exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total cost exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Commodity risk portion of cost exposure [member] |
Statement Line Items [Line Items] |
Notional value | 1,955.3
Fair value of hedging instruments | 95.8
Commodity risk portion of cost exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 1,859.2
Fair value of hedging instruments | 91.1
Commodity risk portion of cost exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value | 96.1
Fair value of hedging instruments | 4.7
Commodity risk portion of cost exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Commodity risk portion of cost exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Commodity risk portion of cost exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American dollar risk portion of cost exposure [member] |
Statement Line Items [Line Items] |
Notional value | 6,879.1
Fair value of hedging instruments | (7.1)
American dollar risk portion of cost exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 6,879.1
Fair value of hedging instruments | (7.1)
American dollar risk portion of cost exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American dollar risk portion of cost exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American dollar risk portion of cost exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American dollar risk portion of cost exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of cost exposure [member] |
Statement Line Items [Line Items] |
Notional value | 82.9
Fair value of hedging instruments | 2.8
Euro risk portion of cost exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 82.9
Fair value of hedging instruments | 2.8
Euro risk portion of cost exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of cost exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of cost exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of cost exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Mexican Pesos risk portion of cost exposure [member] |
Statement Line Items [Line Items] |
Notional value | 401.6
Fair value of hedging instruments | 2.1
Mexican Pesos risk portion of cost exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 398.0
Fair value of hedging instruments | 2.2
Mexican Pesos risk portion of cost exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value | 3.6
Fair value of hedging instruments | (0.1)
Mexican Pesos risk portion of cost exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Mexican Pesos risk portion of cost exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Mexican Pesos risk portion of cost exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total fixed asset exposure [member] |
Statement Line Items [Line Items] |
Notional value | 579.5
Fair value of hedging instruments | (8.9)
Total fixed asset exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 579.5
Fair value of hedging instruments | (8.9)
Total fixed asset exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total fixed asset exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total fixed asset exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total fixed asset exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of fixed assets exposure [member] |
Statement Line Items [Line Items] |
Notional value | 531.9
Fair value of hedging instruments | (9.0)
American Dollar risk portion of fixed assets exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 531.9
Fair value of hedging instruments | (9.0)
American Dollar risk portion of fixed assets exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of fixed assets exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of fixed assets exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of fixed assets exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of fixed assets exposure [member] |
Statement Line Items [Line Items] |
Notional value | 47.6
Fair value of hedging instruments | 0.1
Euro risk portion of fixed assets exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 47.6
Fair value of hedging instruments | 0.1
Euro risk portion of fixed assets exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of fixed assets exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of fixed assets exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Euro risk portion of fixed assets exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total expenses exposure [member] |
Statement Line Items [Line Items] |
Notional value | 177.7
Fair value of hedging instruments | (1.3)
Total expenses exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 177.7
Fair value of hedging instruments | (1.3)
Total expenses exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total expenses exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total expenses exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total expenses exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the expenses exposure [member] |
Statement Line Items [Line Items] |
Notional value | 169.2
Fair value of hedging instruments | (1.3)
American Dollar risk portion of the expenses exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 169.2
Fair value of hedging instruments | (1.3)
American Dollar risk portion of the expenses exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the expenses exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the expenses exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the expenses exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Rupee risk portion of the expenses exposure [member] |
Statement Line Items [Line Items] |
Notional value | 8.5
Fair value of hedging instruments |
Rupee risk portion of the expenses exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 8.5
Fair value of hedging instruments |
Rupee risk portion of the expenses exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Rupee risk portion of the expenses exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Rupee risk portion of the expenses exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Rupee risk portion of the expenses exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total cash exposure [member] |
Statement Line Items [Line Items] |
Notional value | 1,328.3
Fair value of hedging instruments | (13.1)
Total cash exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 1,313.3
Fair value of hedging instruments | (13.1)
Total cash exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total cash exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value | 15.0
Fair value of hedging instruments |
Total cash exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total cash exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the cash exposure [member] |
Statement Line Items [Line Items] |
Notional value | 1,313.3
Fair value of hedging instruments | (13.1)
American Dollar risk portion of the cash exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 1,313.3
Fair value of hedging instruments | (13.1)
American Dollar risk portion of the cash exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the cash exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the cash exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
American Dollar risk portion of the cash exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Interest rate risk portion of the cash exposure [member] |
Statement Line Items [Line Items] |
Notional value | 15.0
Fair value of hedging instruments |
Interest rate risk portion of the cash exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Interest rate risk portion of the cash exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Interest rate risk portion of the cash exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value | 15.0
Fair value of hedging instruments |
Interest rate risk portion of the cash exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Interest rate risk portion of the cash exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total debts exposure [member] |
Statement Line Items [Line Items] |
Notional value | 356.9
Fair value of hedging instruments | 28.2
Total debts exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total debts exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total debts exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Total debts exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value | 110.0
Fair value of hedging instruments | 25.0
Total debts exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value | 246.9
Fair value of hedging instruments | 3.2
Interest rate risk portion of the debts exposure [member] |
Statement Line Items [Line Items] |
Notional value | 356.9
Fair value of hedging instruments | 28.2
Interest rate risk portion of the debts exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Interest rate risk portion of the debts exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Interest rate risk portion of the debts exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Fair value of hedging instruments |
Interest rate risk portion of the debts exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value | 110.0
Fair value of hedging instruments | 25.0
Interest rate risk portion of the debts exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value | 246.9
Fair value of hedging instruments | 3.2
Total foreign investments exposure [member] |
Statement Line Items [Line Items] |
Notional value | 677.0
Total foreign investments exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 677.0
Total foreign investments exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
Total foreign investments exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
Total foreign investments exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
Total foreign investments exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Total equity exposure [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments | 69.2
Total equity exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments | 69.2
Total equity exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |
Total equity exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |
Total equity exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |
Total equity exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |
American Dollar risk portion of the foreign investments exposure [member] |
Statement Line Items [Line Items] |
Notional value | 677.0
American Dollar risk portion of the foreign investments exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Notional value | 677.0
American Dollar risk portion of the foreign investments exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Notional value |
American Dollar risk portion of the foreign investments exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Notional value |
American Dollar risk portion of the foreign investments exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Notional value |
American Dollar risk portion of the foreign investments exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Notional value |
Stock exchange price risk portion of the equity instrument exposure [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments | 69.2
Stock exchange price risk portion of the equity instrument exposure [member] | Not later than one year [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments | 69.2
Stock exchange price risk portion of the equity instrument exposure [member] | Later than one year and not later than two years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |
Stock exchange price risk portion of the equity instrument exposure [member] | Later than two years and not later than three years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |
Stock exchange price risk portion of the equity instrument exposure [member] | Later than three years and not later than four years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |
Stock exchange price risk portion of the equity instrument exposure [member] | Later than five years [member] |
Statement Line Items [Line Items] |
Fair value of hedging instruments |

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