Shareholders' equity - Earnings per share - Net income attributable to the owners of the parent company - Diluted - Components (Details) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Shareholders' equity [abstract]
Net income attributable to the owners of the parent company - basic (adjusted)	€ 2,738	€ 1,661	€ 1,576
Net income of continuing operations - Basic earnings per share	2,738	1,661	1,547
Net income of discontinued operations - Basic earnings per share			29
TDIRA	12		33
Net income attributable to the owners of the parent company - diluted	€ 2,749	€ 1,661	€ 1,609

The profit (loss) attributable to ordinary equity holders of the parent entity. [Refer: Profit (loss)]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2019-01-01
-Paragraph 70
-Subparagraph a
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-URIDate 2019-03-27

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The profit (loss) attributable to ordinary equity holders of the parent entity, adjusted for the effects of all dilutive potential ordinary shares. [Refer: Profit (loss)]

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The profit (loss) from continuing operations attributable to ordinary equity holders of the parent entity. [Refer: Continuing operations [member]; Profit (loss) from continuing operations]

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The profit (loss) from discontinued operations attributable to ordinary equity holders of the parent entity. [Refer: Profit (loss) from discontinued operations]

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Shareholders' equity [abstract]

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