Share-based payments - Accounting policies (Details)	12 Months Ended
Mar. 31, 2021
Share-based payments
Maximum percentage of ordinary share capital issued under all plans	10.00%
Maximum percentage of ordinary share capital issued under plans other than all-employee basis	5.00%

The maximum percentage of ordinary share capital issued when aggregated with the prior ten year allocations under plans other than all-employee basis.

No definition available.

Name:	vod_MaximumPercentageOfOrdinaryShareCapitalIssuedWhenAggregatedWithPriorTenYearAllocationsUnderPlansOtherThanAllEmployeeBasis
Namespace Prefix:	vod_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration