Trade and Other Receivables - Summary (Details) - EUR (€) € in Millions	Dec. 31, 2017	Dec. 31, 2016
Subclassifications of assets, liabilities and equities [abstract]
Trade receivables billed	€ 7,876	€ 8,620
Trade receivables unbilled	3,015	3,003
Impairment of trade receivables	(2,563)	(2,795)
Receivables from associates and joint ventures (Note 9)	32	28
Other receivables	367	418
Short-term prepayments	1,366	1,401
Total	€ 10,093	€ 10,675

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

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The amount of current accrued income. [Refer: Accrued income]

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The amount of current prepayments. [Refer: Prepayments]

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The amount of current receivables due from joint ventures. [Refer: Joint ventures [member]]

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The amount of current trade receivables. [Refer: Trade receivables]

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The amount of current other receivables. [Refer: Other receivables]

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The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

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