Label	Element	Value
Purchasers [Member]
Transfer Of Financial Assets Accounted For As Sales, Deferred Purchase Price Receivable	dxc_TransferOfFinancialAssetsAccountedForAsSalesDeferredPurchasePriceReceivable	$ 525,000,000

Transfer Of Financial Assets Accounted For As Sales, Deferred Purchase Price Receivable

No definition available.

Name:	dxc_TransferOfFinancialAssetsAccountedForAsSalesDeferredPurchasePriceReceivable
Namespace Prefix:	dxc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant