Provisions - Plan Asset Allocation (Details) - EUR (€) € in Millions	Dec. 31, 2017	Dec. 31, 2016
PROVISIONS
Total	€ 1,223	€ 1,181
Level 1
PROVISIONS
Equity investments	105	118
Real estate	54	49
Insurance policies	5	0
Cash and cash equivalents	9	11
Others	45	44
Total	350	317
Not Quoted in an Active Market
PROVISIONS
Equity investments	0	0
Real estate	0	0
Insurance policies	873	864
Cash and cash equivalents	0	0
Others	0	0
Total	873	864
Corporate bonds \| Level 1
PROVISIONS
Bonds	122	90
Corporate bonds \| Not Quoted in an Active Market
PROVISIONS
Bonds	0	0
Government bonds \| Level 1
PROVISIONS
Bonds	10	5
Government bonds \| Not Quoted in an Active Market
PROVISIONS
Bonds	€ 0	€ 0

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 amount that instruments representing debt (rather than equity) constitute of the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]

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The amount that instruments representing equity (rather than debt) constitute of the fair value of defined benefit plan assets. [Refer: 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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