Additional Capital Disclosures - Distribution Policy (Details) - EUR (€) € / shares in Units, € in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Distribution Policy
Minimum targeted distribution of net profit to shareholders		40.00%	35.00%
Dividends distributed		€ 1,499	€ 1,378	€ 1,316
Dividends paid per share		€ 1.25
Amount returned to shareholders b repurchasing of treasury shares	€ 500	€ 500

The amount of dividends recognised as distributions to owners of the parent. [Refer: Parent [member]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount, per share, of dividends recognised as distributions to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
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- Definition

The decrease in equity resulting from the purchase of treasury shares. [Refer: Treasury shares]

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N/A

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No definition available.

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- Definition

Minimum targeted distribution of profit net of tax to shareholders.

+ References

No definition available.

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