Leases - Sale and Leaseback (Details) - EUR (€) € in Millions	12 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Leases
Cash outflow for leases	€ 4,234	€ 3,902
Mobile Base Station
Leases
Sale and leaseback, term of the lease	8 years
Net book value of assets derecognised	€ 548
Gain on disposal	4,100
Gain on proportion of sold asset that has been retained through the leaseback	€ 744

The cash outflow for leases.

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The gains (losses) arising from sale and leaseback transactions.

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The gains (losses) on disposals of property, plant and equipment. [Refer: Property, plant and equipment]

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Net book value of assets derecognised by the company.

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Term of the lease under the sale and leaseback transaction.

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