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Dividends on ordinary capital - Summary of Dividends on Ordinary Capital (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Dividends [Line Items]      
Dividend on ordinary capital € (4,356) € (4,458) € (4,300)
Unilever PLC      
Disclosure Of Dividends [Line Items]      
Dividend on ordinary capital (4,356) (4,458) (1,911)
Unilever N.V.      
Disclosure Of Dividends [Line Items]      
Dividend on ordinary capital € 0 € 0 € (2,389)