Significant Items Within the Income Statement - Summary of Non-underlying Items Related to Gross Profit and Operating Costs (Parenthetical) (Detail) - EUR (€) € in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Non-underlying Items [Line Items]
Gain from sale of AdeS Soy beverage business		€ 308
Blueair [member]
Non-underlying Items [Line Items]
Credit from early settlement of contingent consideration	€ 277
Impairment of intangible asset	€ 208

The amount of impairment loss recognised in profit or loss for intangible assets other than goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets other than goodwill]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2017-01-01
-Paragraph 118
-Subparagraph e
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2017-03-01&anchor=para_118_e_iv&doctype=Standard
-URIDate 2017-03-09

Name:	ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration