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Finance debts - Fair value of long-term debt (Details) - EUR (€) € in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Long-term debt and current portion of long-term debt |  |
Borrowings |  |
Financial liabilities, at fair value | € 28,750 | € 26,970
Long-term and current portion of long-term ordinary bonds and Sustainability-Linked Bond |  |
Borrowings |  |
Financial liabilities, at fair value | 23,070 | 22,429
Long-term and current portion of long-term convertible bonds |  |
Borrowings |  |
Financial liabilities, at fair value | 513 | 497
Long-term and current portion of long-term bank debt |  |
Borrowings |  |
Financial liabilities, at fair value | 5,029 | 4,008
Long-term and current portion of long-term debt with other financial institutions |  |
Borrowings |  |
Financial liabilities, at fair value | € 138 | € 36

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- Definition The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 + Details
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