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Events After The Balance Sheet Date - Additional Information (Detail)			12 Months Ended
	Jan. 31, 2019 € / shares	Jan. 31, 2019 £ / shares	Dec. 31, 2018 € / shares	Dec. 31, 2017 € / shares
Unilever N.V. [member]
Disclosure of Non-adjusting Events after Reporting Period [Line Items]
Dividend payables per share			€ 1.52	€ 1.40
Major Ordinary Share Transactions [member] | Unilever N.V. [member]
Disclosure of Non-adjusting Events after Reporting Period [Line Items]
Dividend payables per share	€ 0.3872
Major Ordinary Share Transactions [member] | Unilever PLC [member]
Disclosure of Non-adjusting Events after Reporting Period [Line Items]
Dividend payables per share | £ / shares		£ 0.3361

X

- 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, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 137
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_137_a&doctype=Standard
-URIDate 2017-03-09

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