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Employee benefits (Details 9) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | $ 7,794 |
Total fair value | $ 12,559 | $ 10,567
% | 98.00% | 97.00%
Quoted prices in active markets | $ 4,765 |
Unquoted prices | 7,509 |
Total fair value | 12,274 | $ 10,287
Quoted prices in active markets | $ 4,765 |
% | 100.00% | 100.00%
Receivables [member] |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | $ 1,353 |
Total fair value | $ 1,353 | $ 846
% | 11.00% | 8.00%
Platforms [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | $ 5,297 |
Total fair value | $ 8,845 | $ 6,864
% | 70.00% | 67.00%
Quoted prices in active markets | $ 3,548 |
Government bonds [member] |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | 3,947 |
Total fair value | 7,450 | $ 4,522
Quoted prices in active markets | 3,503 |
Depreciation Amortization And Depletion Of Property Plant And Equipment |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | 864 |
Total fair value | 864 | 860
Assets or disposal groups classified as held for sale, Others |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | 486 |
Total fair value | 531 | 1,482
Quoted prices in active markets | 45 |
Petrobras Production Portion |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | 243 |
Total fair value | $ 1,427 | $ 1,918
% | 9.00% | 16.00%
Quoted prices in active markets | $ 1,184 |
Foreign Market [member] |  |
IfrsStatementLineItems [Line Items] |  |
Total fair value | 1,184 | $ 1,686
Quoted prices in active markets | 1,184 |
Assets Of Disposal Group Classified As Held For Sale |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | 243 |
Total fair value | 243 | 232
Capital Expenditures and Financing Activities not Involving Cash [abstract] |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | 126 |
Total fair value | $ 159 | $ 184
% | 4.00% | 2.00%
Quoted prices in active markets | $ 33 |
Guarantees Given As Collateral |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | 490 |
Total fair value | $ 490 | $ 475
% | 4.00% | 4.00%
Oil And Natural Gas Liquids [member] |  |
IfrsStatementLineItems [Line Items] |  |
Unquoted prices | $ 285 |
Total fair value | $ 285 | $ 280
% | 2.00% | 3.00%

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