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Dividends on ordinary capital - Summary of Dividends on Ordinary Capital (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of Dividends [Line Items]      
Dividend on ordinary capital during the year € (4,458) € (4,300) € (4,223)
Unilever PLC      
Disclosure of Dividends [Line Items]      
Dividend on ordinary capital during the year (4,458) (1,911) (1,871)
Unilever N.V.      
Disclosure of Dividends [Line Items]      
Dividend on ordinary capital during the year € 0 € (2,389) € (2,352)