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Finance income (expense) (Details 1) - EUR (€) € in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finance income (expense) related to net borrowings
Interest and other finance expense on ordinary bonds		€ (565)	€ (638)	€ (639)
Interest due to banks and other financial institutions		(120)	(113)	(118)
Net finance income (expense) from financial assets held for trading		32	(111)	(21)
Interest from banks		18	12	15
Interest and other income on financial receivables and securities held for non-operating purposes		8	16	37
Total Finance Income Expense Related To Net Borrowings		(627)	(834)	(726)
Exchange differences		341	(905)	676
Income (expense) from derivative financial instruments		(307)	837	(482)
Other finance income (expense)
Interest and other income on financing receivables and securities held for operating purposes		132	128	143
Capitalized finance expense		52	73	106
Finance expense due to the passage of time (accretion discount)	[1]	(249)	(264)	(312)
Other finance (expense)		(313)	(271)	(290)
Other finance income (cost)		(378)	(334)	(353)
Finance income (cost)		€ (971)	€ (1,236)	€ (885)
[1] The item related to the increase in provisions for contingencies that are shown at present value in non-current liabilities.

X

- Definition

The amount of income or cost from derivatives financial instruments.

+ References

No definition available.

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FinanceIncomeExpenseRelatedToNetBorrowings

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The amount of finance income on financial assets held for non-operating purposes.

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No definition available.

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The amount of finance income on financial assets held for operating purposes.

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No definition available.

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- Definition

The amount of interest expense due to banks and financial institutions.

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No definition available.

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OtherFinanceIncomeExpenseAbstract

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- Definition

The amount of all other miscellaneous financial income (expenses).

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- Definition

The total amount of finance income expenses relating to net borrowings.

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No definition available.

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- Definition

Adjustments for decrease (increase) in financial assets held for trading to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Financial assets; Financial assets at fair value through profit or loss, classified as held for trading; Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of interest and other costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset.

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The amount of income or cost associated with interest and other financing activities of the entity.

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- Definition

The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]]

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The increase in other provisions through adjustments arising from the passage of time. [Refer: Other provisions]

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- Definition

The amount of interest expense on bonds issued. [Refer: Interest expense; Bonds issued]

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The amount of interest income on cash and bank balances at central banks. [Refer: Interest income; Cash and bank balances at central banks]

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The amount of finance income or cost that the entity does not separately disclose in the same statement or note. [Refer: Finance income (cost)]

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