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Dividends on ordinary capital - Narrative (Details)
€ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2022
EUR (€)
Dec. 31, 2021
£ / shares
Dec. 31, 2021
EUR (€)
Dec. 31, 2020
£ / shares
Dec. 31, 2020
EUR (€)
Dec. 31, 2021
£ / shares
Dec. 31, 2020
£ / shares
Unilever N.V.              
Disclosure of Dividends [Line Items]              
Dividend declared and paid during the year           £ 1.48  
Unilever PLC              
Disclosure of Dividends [Line Items]              
Dividend declared and paid during the year             £ 1.45
Dividend declared | € € 1,137   € 1,137   € 1,125    
Dividends declared per ordinary share   £ 0.36   £ 0.38   £ 1.46 £ 1.48