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Investments - Other investments (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Investments |  |
Carrying amount at the beginning of the year | € 919 | € 219
Additions and subscriptions | 11 | 5
Change in the fair value | (3) | 15
Divestments and reimbursements | (12) | (22)
Currency translation differences | 15 | 31
Other changes | (1) | (10)
Carrying amount at the end of the year | € 929 | 919
Increase (decrease) due to application of IFRS 9 |  |
Investments |  |
Carrying amount at the beginning of the year |  | 681
After initial application |  |
Investments |  |
Carrying amount at the beginning of the year |  | € 900

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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 amount of non-current investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Non-current assets; Investments other than investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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