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v3.22.2

Leases - Narrative (Details) | 3 Months Ended
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Jun. 30, 2022
Lessee, Lease, Description [Line Items] |
Extension term | 10 years
Minimum |
Lessee, Lease, Description [Line Items] |
Remaining lease term | 1 year
Termination term | 1 year
Maximum |
Lessee, Lease, Description [Line Items] |
Remaining lease term | 10 years
Termination term | 3 years

X
- Definition Leases, Remaining Lease Term + References No definition available. + Details
Name: | dxc_LeasesRemainingLeaseTerm
Namespace Prefix: | dxc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Lease, Renewal Term + References No definition available. + Details
Name: | dxc_LesseeLeaseRenewalTerm
Namespace Prefix: | dxc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Lease, Termination Period + References No definition available. + Details
Name: | dxc_LesseeLeaseTerminationPeriod
Namespace Prefix: | dxc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |