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Investments (Details 3) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Investments [Line Items]
Changes in accounting policies (IFRS 9)	€ 681
Net book amount at the beginning of the year	219	€ 276
Additions and subscriptions	5	3
Change in the fair value	15
Divestments and reimbursements	(22)	(19)
Currency translation differences	31	(23)
Other changes	(10)	(18)
Net book amount at the Ending of the year	919	219
Gross carrying amount [member]
Disclosure Of Investments [Line Items]
Net book amount at the beginning of the year	€ 219	276
Net book amount at the Ending of the year		€ 219

X

- Definition

The amount of additions to investments other than investments accounted for using equity method.

+ References

No definition available.

+ Details

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- Definition

The amount of change in the fair value to investments other than investments accounted for using the equity method.

+ References

No definition available.

+ Details

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- Definition

Represents the changes in investments other than investments accounted for using equity method investments, through change in accounting policy.

+ References

No definition available.

+ Details

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- Definition

Disclosure Of Investments

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No definition available.

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- Definition

The amount of divestments and reimbursements to investments other than investments accounted for using equity method.

+ References

No definition available.

+ Details

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- Definition

The increase (decrease) in investments other than investments accounted for using equity method resulting from other changes that the entity does not separately disclose in the same statement or note.

+ References

No definition available.

+ Details

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- Definition

The increase (decrease) through net exchange differences investments other than investments accounted for using equity method resulting from changes that the entity does not separately disclose in the same statement or note.

+ References

No definition available.

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- Definition

The amount of investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

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