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Provisions for employee benefits (Details 4) - EUR (€) € in Millions	Dec. 31, 2018	Dec. 31, 2017
Statement [Line Items]
Cash and cash equivalents	€ 115	€ 16
Equity securities	37	48
Debt securities	238	329
Real estate	6	10
Derivatives	2	9
Investment funds	56	60
Assets Held By Insurance Company	21	16
Other	70	100
Total	545	588
Level 1 of fair value hierarchy [member]
Statement [Line Items]
Cash and cash equivalents	115	16
Equity securities	37	48
Debt securities	238	329
Real estate	6	10
Derivatives	2	9
Investment funds	56	60
Assets Held By Insurance Company	18	13
Other	70	100
Total	542	585
Level 2 and 3 of fair value hierarchy [member]
Statement [Line Items]
Assets Held By Insurance Company	3	3
Total	€ 3	€ 3

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Assets held by insurance company.

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The amount that cash and cash equivalents constitute of the fair value of defined benefit plan assets. [Refer: Cash and cash equivalents; Plan assets, at fair value; Defined benefit plans [member]]

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The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]]

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The amount that real estate constitutes of the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]

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