3.26.1 html 1414 90 1 false 33 0 false 4 false false R1.htm 0000001 - Document - Cover Sheet http://www.dxc.com/role/Cover Cover Cover 1 false false R2.htm 0000002 - Statement - Statements of Net Assets Available for Plan Benefits Sheet http://www.dxc.com/role/StatementsofNetAssetsAvailableforPlanBenefits Statements of Net Assets Available for Plan Benefits Statements 2 false false R3.htm 0000003 - Statement - Statement of Changes in Net Assets Available for Plan Benefits Sheet http://www.dxc.com/role/StatementofChangesinNetAssetsAvailableforPlanBenefits Statement of Changes in Net Assets Available for Plan Benefits Statements 3 false false R4.htm 0000004 - Disclosure - Description of the Plan Sheet http://www.dxc.com/role/DescriptionofthePlan Description of the Plan Notes 4 false false R5.htm 0000005 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.dxc.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 5 false false R6.htm 0000006 - Disclosure - Tax Status Sheet http://www.dxc.com/role/TaxStatus Tax Status Notes 6 false false R7.htm 0000007 - Disclosure - Fair Value Measurements Sheet http://www.dxc.com/role/FairValueMeasurements Fair Value Measurements Notes 7 false false R8.htm 0000008 - Disclosure - Notes Receivable to Participants Notes http://www.dxc.com/role/NotesReceivabletoParticipants Notes Receivable to Participants Notes 8 false false R9.htm 0000009 - Disclosure - Exempt Party-in-Interest Transactions Sheet http://www.dxc.com/role/ExemptPartyinInterestTransactions Exempt Party-in-Interest Transactions Notes 9 false false R10.htm 0000010 - Disclosure - Reconciliation of Financial Statements to Form 5500 Sheet http://www.dxc.com/role/ReconciliationofFinancialStatementstoForm5500 Reconciliation of Financial Statements to Form 5500 Notes 10 false false R11.htm 0000011 - Disclosure - Subsequent Events Sheet http://www.dxc.com/role/SubsequentEvents Subsequent Events Notes 11 false false R12.htm 0000012 - Disclosure - Schedule of Assets Held, Form 5500, Schedule H, Line 4i Sheet http://www.dxc.com/role/ScheduleofAssetsHeldForm5500ScheduleHLine4i Schedule of Assets Held, Form 5500, Schedule H, Line 4i Notes 12 false false R13.htm 0000013 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.dxc.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.dxc.com/role/SummaryofSignificantAccountingPolicies 13 false false R14.htm 0000014 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.dxc.com/role/SummaryofSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://www.dxc.com/role/SummaryofSignificantAccountingPolicies 14 false false R15.htm 0000015 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.dxc.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.dxc.com/role/FairValueMeasurements 15 false false R16.htm 0000016 - Disclosure - Reconciliation of Financial Statements to Form 5500 (Tables) Sheet http://www.dxc.com/role/ReconciliationofFinancialStatementstoForm5500Tables Reconciliation of Financial Statements to Form 5500 (Tables) Tables http://www.dxc.com/role/ReconciliationofFinancialStatementstoForm5500 16 false false R17.htm 0000017 - Disclosure - Description of the Plan (Details) Sheet http://www.dxc.com/role/DescriptionofthePlanDetails Description of the Plan (Details) Details http://www.dxc.com/role/DescriptionofthePlan 17 false false R18.htm 0000018 - Disclosure - Summary of Significant Accounting Policies - Investment Funds Greater than 10% of Total Investments (Details) Sheet http://www.dxc.com/role/SummaryofSignificantAccountingPoliciesInvestmentFundsGreaterthan10ofTotalInvestmentsDetails Summary of Significant Accounting Policies - Investment Funds Greater than 10% of Total Investments (Details) Details 18 false false R19.htm 0000019 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details) Sheet http://www.dxc.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails Summary of Significant Accounting Policies - Narrative (Details) Details 19 false false R20.htm 0000020 - Disclosure - Fair Value Measurements (Details) Sheet http://www.dxc.com/role/FairValueMeasurementsDetails Fair Value Measurements (Details) Details http://www.dxc.com/role/FairValueMeasurementsTables 20 false false R21.htm 0000021 - Disclosure - Notes Receivable to Participants (Details) Notes http://www.dxc.com/role/NotesReceivabletoParticipantsDetails Notes Receivable to Participants (Details) Details http://www.dxc.com/role/NotesReceivabletoParticipants 21 false false R22.htm 0000022 - Disclosure - Exempt Party-in-Interest Transactions (Details) Sheet http://www.dxc.com/role/ExemptPartyinInterestTransactionsDetails Exempt Party-in-Interest Transactions (Details) Details http://www.dxc.com/role/ExemptPartyinInterestTransactions 22 false false R23.htm 0000023 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Reconciliation of Net Assets Available for Benefit (Details) Sheet http://www.dxc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetAssetsAvailableforBenefitDetails Reconciliation of Financial Statements to Form 5500 - Reconciliation of Net Assets Available for Benefit (Details) Details 23 false false R24.htm 0000024 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Reconciliation of Net Income (Details) Sheet http://www.dxc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofNetIncomeDetails Reconciliation of Financial Statements to Form 5500 - Reconciliation of Net Income (Details) Details 24 false false R25.htm 0000025 - Disclosure - Reconciliation of Financial Statements to Form 5500 - Reconciliation of Distributions to Participants (Details) Sheet http://www.dxc.com/role/ReconciliationofFinancialStatementstoForm5500ReconciliationofDistributionstoParticipantsDetails Reconciliation of Financial Statements to Form 5500 - Reconciliation of Distributions to Participants (Details) Details 25 false false R26.htm 0000026 - Disclosure - Schedule of Assets Held, Form 5500, Schedule H, Line 4i (Details) Sheet http://www.dxc.com/role/ScheduleofAssetsHeldForm5500ScheduleHLine4iDetails Schedule of Assets Held, Form 5500, Schedule H, Line 4i (Details) Details http://www.dxc.com/role/ScheduleofAssetsHeldForm5500ScheduleHLine4i 26 false false All Reports Book All Reports dxc-20260521.htm dxc-20260521.xsd dxc-20260521_cal.xml dxc-20260521_def.xml dxc-20260521_lab.xml dxc-20260521_pre.xml http://fasb.org/us-gaap-ebp/2026 http://xbrl.sec.gov/dei/2026 true true