Earnings per ordinary share - Summary of earnings per ordinary share (Details) - EUR (€) € / shares in Units, € in Millions, shares in Millions	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Amount
Basic earnings	€ 7,745	€ 3,161
Basic earnings from continuing operations, amount	7,745	3,161
Diluted earnings, amount	7,745	3,161
Diluted earnings from continuing operations, amount	€ 7,745	€ 3,161
Weighted average number of ordinary shares outstanding during the period
Basic earnings	3,765.3	3,901.9
Stock option and share plans	1.4	1.6
Total effect of dilutive instruments	1.4	1.6
Diluted earnings	3,766.7	3,903.5
Per ordinary share
Basic earnings	€ 2.06	€ 0.81
Basic earnings from continuing operations	2.06	0.81
Diluted earnings	2.06	0.81
Diluted earnings from continuing operations	€ 2.06	€ 0.81

The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2021-01-01
-Paragraph 70
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard
-URIDate 2021-03-24