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Goodwill and Intangible Assets - Summary of Net Book Value Goodwill and Intangible Assets (Parenthetical) (Detail) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Indefinite-life intangible assets that have significant carrying value	€ 28,401	€ 27,433
Spreads business [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Goodwill and intangibles reclassified as held for sale	2,311
Knorr [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Indefinite-life intangible assets that have significant carrying value	1,770	1,866
Carver Koree [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Indefinite-life intangible assets that have significant carrying value	1,520	0
Hellmann's [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items]
Indefinite-life intangible assets that have significant carrying value	€ 1,160	€ 1,302

X

- Definition

The decrease in intangible assets and goodwill resulting from classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 38
-IssueDate 2016-01-13
-Paragraph 118
-Subparagraph e
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2016-03-30&anchor=para_118_e_ii&doctype=Standard
-URIDate 2016-03-31

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2016-01-13
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2016-03-30&anchor=para_55&doctype=Standard
-URIDate 2016-03-31

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