Operating costs and non-underlying items - Analysis of expenses recognized in Profit or loss by function (Details) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Analysis of expenses recognized in profit or loss by function [Line Items]
Turnover	€ 52,444	€ 50,724	€ 51,980
Cost of sales	(30,259)	(28,684)	(29,102)
Gross profit	22,185	22,040	22,878
Selling and administrative expenses	(12,549)	(12,673)	(12,931)
Non-underlying items within operating profit before tax	(934)	(1,064)	(1,239)
Operating profit	8,702	8,303	8,708
Patent costs	27	27	27
Cost of sales
Analysis of expenses recognized in profit or loss by function [Line Items]
Distribution costs	(3,313)	(3,104)	(3,089)
Production costs	(3,678)	(3,696)	(3,701)
Raw and packaging materials and goods purchased for resale	(21,799)	(20,400)	(20,769)
Other	(1,469)	(1,484)	(1,543)
Selling and administrative expenses
Analysis of expenses recognized in profit or loss by function [Line Items]
Brand and marketing investment	(6,873)	(7,091)	(7,272)
Overheads	(5,676)	(5,582)	(5,659)
Research and development	€ (847)	€ (800)	€ (840)

The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
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-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_99&doctype=Standard
-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 103
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_103&doctype=Standard
-URIDate 2021-03-24