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Inventories (Tables)
12 Months Ended
Dec. 31, 2022
Subclassifications of assets, liabilities and equities [abstract]  
Schedule of Inventories
Inventories comprise the following:
202220212020
(€ million)Gross
value
AllowancesCarrying
amount
Gross
value
AllowancesCarrying
amount
Gross
value
AllowancesCarrying
amount
Raw materials1,613 (139)1,474 1,344 (66)1,278 1,051 (76)975 
Work in process5,663 (678)4,985 5,579 (554)5,025 5,398 (542)4,856 
Finished goods2,748 (247)2,501 2,696 (284)2,412 2,739 (218)2,521 
Total10,024 (1,064)8,960 9,619 (904)8,715 9,188 (836)8,352