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Acquisitions and Disposals - Additional Information (Detail) - EUR (€) € in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Disclosure of Acquisitions and Disposals [Line Items]
Total consideration for acquisitions	€ 654	€ 1,078
Olly Nutrition Member
Disclosure of Acquisitions and Disposals [Line Items]
Acquisition description	The main acquisition in the first half of 2019 was Olly Nutrition, a premium supplements business in the US.

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- Definition

The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]]

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- Definition

The description of how the acquirer obtained the power to govern the financial and operating policies of the acquiree so as to obtain benefits from its activities.

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