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Provisions, income tax liabilities and other liabilities - Total Expense for Pensions and Other Post-employment Benefits Allocated between Income Statement (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of defined benefit plans [line items]      
Cost of sales € 13,695 € 12,255 € 12,159 [1]
Research and development expenses 6,706 5,692 5,530 [1]
Selling and general expenses 10,492 9,555 9,391 [1]
Other operating (income)/expenses, net 1,231 1,373 926
Financial expenses 440 368 388 [1]
Pensions and other post-employment benefits      
Disclosure of defined benefit plans [line items]      
Cost of sales 55 77 77
Research and development expenses 52 65 63
Selling and general expenses 81 87 88
Other operating (income)/expenses, net (2) (1) (140)
Restructuring costs (61) 6 (59)
Financial expenses 43 42 55
Total € 168 € 276 € 84
[1] Includes the impacts of the IFRIC final agenda decisions of March 2021 on the costs of configuring or customising application software used in a Software as a Service (SaaS) arrangement and of April 2021 on the attribution of benefits to periods of service, as described in Note A.2.1. to the consolidated financial statements for the year ended December 31, 2021.