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Financial Instruments Fair Value Risk - Additional Information (Detail) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of Detailed Information about Financial Instruments [Line Items]
Unlisted investments include of investment	€ 29	€ 35
Level 3 [member]
Disclosure of Detailed Information about Financial Instruments [Line Items]
Impact in income statement due to Level 3 instruments	(22)	(9)
Option over a non-controlling interest	51	0
Long-term cash receivables insurance contracts	106	114
Level 3 [member] | Unilever Ventures companies [Member]
Disclosure of Detailed Information about Financial Instruments [Line Items]
Unlisted investments include of investment	€ 494	€ 403

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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.

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The gains (losses) on financial assets at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

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The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Joint ventures [member]]

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Long-term cash receivables insurance contracts.

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