Other income - Details of other income (Details) - EUR (€) € in Millions	3 Months Ended	6 Months Ended	12 Months Ended
Mar. 31, 2022	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Other income [abstract]
Share of result from associates and joint ventures		€ 35	€ 23	€ 141
Impairment of associates and joint ventures	€ (150)	(153)	(3)
Net result on derecognition of financial assets measured at amortised cost		(3)	(3)
Net monetary gain or loss		(250)
Other		70	166
Other income		€ (300)	€ 184

The gain (loss) arising from the derecognition of financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

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The gains (losses) representing the difference resulting from the restatement of non-monetary assets, owners' equity and items in the statement of comprehensive income and the adjustment of index linked assets and liabilities in hyperinflationary reporting.

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The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]]

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The amount of miscellaneous other operating income. [Refer: Other operating income (expense)]

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The amount of operating income that the entity does not separately disclose in the same statement or note.

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The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]

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