Taxes - Income tax - Net current tax - Reconciliation (Details) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Major components of tax expense (income) [abstract]
Net current tax assets / (liabilities) in the opening balance	€ (636)	€ (464)	€ (168)
Cash tax payments	1,079	928	583
Change in income statement	(1,093)	(1,116)	(859)
Change in retained earnings	48		(11)
Changes in the scope of consolidation	(1)	19	0
Translation adjustment	(1)	(3)	5
Reclassifications and other items	(24)	0	(14)
Reclassification to assets held for sale	0	0	0
Net current tax assets / (liabilities) in the closing balance	€ (629)	€ (636)	€ (464)

The cash outflow for income taxes paid, classified as operating activities.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2019-01-01
-Paragraph 35
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_35&doctype=Standard
-URIDate 2019-03-27

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The amount of tax expense or income relating to changes in current tax liabilities and current tax assets, recognised in profit or loss.

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The amount of current tax liabilities or assets.

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The increase (decrease) in current tax liability (asset) resulting from change in retained earnings.

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The increase (decrease) in current tax liability (asset) resulting from change in the scope of consolidation.

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The increase (decrease) in current tax liability (asset) resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity.

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The increase (decrease) in current tax liability (asset) resulting from reclassifications and other items.

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The increase (decrease) in current tax liability (asset) resulting from reclassification to assets held for sale.

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