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Trade and Other Current Receivables - Summary of Trade and Other Current Receivables (Parenthetical) (Detail) - EUR (€) € in Millions	Dec. 31, 2018	Dec. 31, 2017
Trade and Other Current Receivables [Line Items]
Trade receivables	€ 4,350	€ 3,439
KKR [member]
Trade and Other Current Receivables [Line Items]
Trade receivables	€ 677

X

- Definition

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

+ References

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- Definition

Trade and other current receivables.

+ References

No definition available.

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- Details

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