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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
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Dec. 31, 2018 | Dec. 31, 2017
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Indefinite-life intangible assets that have significant carrying value | € 29,493 | € 28,401
Disposal Groups Held for Sale [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Goodwill and intangible assets reclassified as held for sale | 283 | 2,311
Indefinite-life intangible assets that have significant carrying value | 82 | 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 | 1,789 | 1,770
Carver Korea [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Indefinite-life intangible assets that have significant carrying value | 1,534 | 1,520
Hellmann's [member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |
Indefinite-life intangible assets that have significant carrying value | € 1,195 | € 1,160

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- 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 2017-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_ii&doctype=Standard -URIDate 2017-03-09 + 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 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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