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Other assets and liabilities (Details) - EUR (€) € in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Other assets and liabilities |  |
Fair value of derivative financial instruments, current assets | € 12,460 | € 1,548
Other taxes, current assets | 442 | 450
Other assets, current | 732 | 688
Other current assets, total | 13,634 | 2,686
Fair value of derivative financial instruments, non-current assets | 51 | 152
Other taxes, non-current assets | 182 | 181
Other assets, non-current | 796 | 920
Other non-current assets, total | 1,029 | 1,253
Fair value of derivatives financial instruments, current liabilities | 12,911 | 1,609
Contract liabilities, current | 482 | 1,298
Other taxes, current liabilities | 1,435 | 1,124
Other liabilities, current | 928 | 841
Other current liabilities, total | 15,756 | 4,872
Fair value of derivatives financial instruments, non-current liabilities | 115 | 162
Contract liabilities, non-current | 726 | 394
Other taxes, non-current liabilities | 27 | 26
Other liabilities, non-current | 1,378 | 1,295
Other non-current liabilities, total | € 2,246 | € 1,877

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