Operating profit - Remuneration of Group's auditor (Details) - EUR (€) € in Millions	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Remuneration of Group's auditor
Audit fees	€ 23	€ 21	€ 22
Vantage Towers IPO		11	5
Audit-related	2		1
Corporate finance			1
Non-audit fees	2	11	7
Total fees	25	32	29
Increase in audit fees		1
Vantage Towers
Remuneration of Group's auditor
Vantage Towers IPO		1
Increase in audit fees		3
Parent company
Remuneration of Group's auditor
Audit fees	4	3	4
Subsidiaries
Remuneration of Group's auditor
Audit fees	19	€ 18	17
Subsidiaries \| New accounting standards
Remuneration of Group's auditor
Audit fees	€ 1		€ 1

The amount of fees paid or payable to the entity's auditors.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2021-03-24

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The amount of fees paid or payable to the entity's auditors for auditing services.

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The amount of fees paid or payable to the entity's auditors for services that the entity does not separately disclose in the same statement or note.

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The amount of fees paid or payable to the entity's auditors for audit related services.

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The amount of fees paid or payable to the entity's auditors for corporate finance services.

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The amount of fees paid or payable to the entity's auditors for IPO related services.

+ References

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Represents the amount of increase in audit fees.

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