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Dividends on Ordinary Capital - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Dec. 31, 2018 € / shares	Dec. 31, 2018 £ / shares	Dec. 31, 2018 € / shares	Dec. 31, 2018 £ / shares	Dec. 31, 2017 € / shares	Dec. 31, 2017 £ / shares
Unilever N.V. [member]
Disclosure of Dividends [Line Items]
Dividend declared and paid during the year | € / shares			€ 1.52		€ 1.40
Dividends declared per ordinary share | € / shares	€ 0.39		€ 1.55		€ 1.43
Unilever PLC [member]
Disclosure of Dividends [Line Items]
Dividend declared and paid during the year | £ / shares				£ 1.33		£ 1.22
Dividends declared per ordinary share | £ / shares		£ 0.34		£ 1.35		£ 1.26

X

- Definition

The amount of dividends paid per ordinary share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2017-01-01
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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
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X

- Definition

Disclosure of dividends.

+ References

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- Definition

Dividend declared for period.

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