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Financial instruments - additional disclosures (Details 7) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Maturity of net debt [line items] |  |
Current financial assets | $ 18,930 | $ 28,329
Non-current financial debts | (20,244) | (22,902)
Current financial debt | (5,931) | (6,295)
Net debt | (7,245) | (868)
Marketable securities and time deposits [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 11,098 | 15,706
Commodities [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 111 | 111
Deriviative financial instruments and accrued interest [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 204 | 105
Cash and cash equivalents [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 7,517 | 12,407
Financial debt [member] |  |
Maturity of net debt [line items] |  |
Non-current financial debts | (20,244) | (22,902)
Current financial debt | (5,876) | (6,227)
Financial debt - undiscounted [member] |  |
Maturity of net debt [line items] |  |
Non-current financial debts | (20,396) | (23,077)
Current financial debt | (5,878) | (6,229)
Derivative financial instruments [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (55) | (68)
Not later than one month [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 8,176 | 7,438
Current financial debt | (3,253) | (2,830)
Net debt | 4,923 | 4,608
Not later than one month [member] | Marketable securities and time deposits [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 4,142 | 11
Not later than one month [member] | Deriviative financial instruments and accrued interest [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 23 | 21
Not later than one month [member] | Cash and cash equivalents [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 4,011 | 7,406
Not later than one month [member] | Financial debt [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (3,215) | (2,780)
Not later than one month [member] | Financial debt - undiscounted [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (3,215) | (2,780)
Not later than one month [member] | Derivative financial instruments [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (38) | (50)
Later than one month and not later than three months [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 10,564 | 19,650
Current financial debt | (159) | (537)
Net debt | 10,405 | 19,113
Later than one month and not later than three months [member] | Marketable securities and time deposits [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 6,911 | 14,585
Later than one month and not later than three months [member] | Deriviative financial instruments and accrued interest [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 147 | 64
Later than one month and not later than three months [member] | Cash and cash equivalents [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 3,506 | 5,001
Later than one month and not later than three months [member] | Financial debt [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (146) | (521)
Later than one month and not later than three months [member] | Financial debt - undiscounted [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (146) | (521)
Later than one month and not later than three months [member] | Derivative financial instruments [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (13) | (16)
Later than three month and not later than twelve months [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 55 | 1,095
Current financial debt | (2,519) | (2,928)
Net debt | (2,464) | (1,833)
Later than three month and not later than twelve months [member] | Marketable securities and time deposits [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 36 | 1,088
Later than three month and not later than twelve months [member] | Deriviative financial instruments and accrued interest [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 19 | 7
Later than three month and not later than twelve months [member] | Financial debt [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (2,515) | (2,926)
Later than three month and not later than twelve months [member] | Financial debt - undiscounted [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (2,517) | (2,928)
Later than three month and not later than twelve months [member] | Derivative financial instruments [member] |  |
Maturity of net debt [line items] |  |
Current financial debt | (4) | (2)
Between one and five years |  |
Maturity of net debt [line items] |  |
Current financial assets |  | 4
Non-current financial debts | (8,975) | (8,464)
Net debt | (8,975) | (8,460)
Between one and five years | Marketable securities and time deposits [member] |  |
Maturity of net debt [line items] |  |
Current financial assets |  | 4
Between one and five years | Financial debt [member] |  |
Maturity of net debt [line items] |  |
Non-current financial debts | (8,975) | (8,464)
Between one and five years | Financial debt - undiscounted [member] |  |
Maturity of net debt [line items] |  |
Non-current financial debts | (9,002) | (8,490)
Later than five years |  |
Maturity of net debt [line items] |  |
Current financial assets | 135 | 142
Non-current financial debts | (11,269) | (14,438)
Net debt | (11,134) | (14,296)
Later than five years | Marketable securities and time deposits [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 9 | 18
Later than five years | Commodities [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 111 | 111
Later than five years | Deriviative financial instruments and accrued interest [member] |  |
Maturity of net debt [line items] |  |
Current financial assets | 15 | 13
Later than five years | Financial debt [member] |  |
Maturity of net debt [line items] |  |
Non-current financial debts | (11,269) | (14,438)
Later than five years | Financial debt - undiscounted [member] |  |
Maturity of net debt [line items] |  |
Non-current financial debts | $ (11,394) | $ (14,587)

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