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Financial instruments and financial risk management - Guarantees (Details) - EUR (€) € in Millions	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Financial instruments
Letters of guarantee to secure obligations	€ 4,236	€ 3,797	€ 4,118

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- Definition

The decrease in exposure to credit risk on loan commitments and financial guarantee contracts resulting from derecognition. [Refer: Exposure to credit risk on loan commitments and financial guarantee contracts]

+ References

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+ Details

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- References

No definition available.

+ Details

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