Shareholders' equity - Translation adjustment - Gains (losses) on exchange differences (Details) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Exchange differences on translation [abstract]
Gain (loss) recognized in other comprehensive income during the period	€ 90	€ (6)	€ (184)
Reclassification to net income for the period	(12)	(1)	8
Total transaction adjustments for continuing operations	€ 78	€ (7)	€ (176)

The gains (losses) recognised in other comprehensive income on exchange differences on the translation of financial statements of foreign operations, before tax. [Refer: Other comprehensive income]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 91
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_91_b&doctype=Standard
-URIDate 2019-03-27

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