$DXC
DXC Technology Co Stock $dxc

$dxc Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-K Financial Statement

#000168856821000029 Filed on May 28, 2021

Income Statement

Concept	2020 Q1	2019 Q1	2019
Revenue	$4.815B	$5.280B	$20.75B
YoY Change	-8.81%	-5.44%	-4.51%
Cost Of Revenue	$3.773B	$3.836B	$14.95B
YoY Change	-1.64%	-6.14%	-8.4%
Gross Profit	$1.042B	$1.444B	$5.807B
YoY Change	-27.84%	-3.54%	7.22%
Gross Profit Margin	21.64%	27.35%	27.98%
Selling, General & Admin	$444.0M	$363.0M	$1.959B
YoY Change	22.31%	13.44%	3.65%
% of Gross Profit	42.61%	25.14%	33.74%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$531.0M	$509.0M	$2.023B
YoY Change	4.32%	-18.82%	0.45%
% of Gross Profit	50.96%	35.25%	34.84%
Operating Expenses	$610.0M	$944.0M	$19.24B
YoY Change	-35.38%	28.09%	-5.83%
Operating Profit	$432.0M	$500.0M	$3.269B
YoY Change	-13.6%	-34.21%	9.37%
Interest Expense	-$44.00M	-$3.000M	$334.0M
YoY Change	1366.67%	-102.54%	4.38%
% of Operating Profit	-10.19%	-0.6%	10.22%
Other Income/Expense, Net
YoY Change
Pretax Income	-$3.562B	$354.0M	$1.515B
YoY Change	-1106.21%	-39.8%	16.18%
Income Tax	-$30.00M	$82.00M	$288.0M
% Of Pretax Income		23.16%	19.01%
Net Earnings	-$3.495B	$274.0M	$1.257B
YoY Change	-1375.55%	-51.07%	-28.21%
Net Earnings / Revenue	-72.59%	5.19%	6.06%
Basic Earnings Per Share			$4.53
Diluted Earnings Per Share	-$13.78M	$1.009M	$4.47
COMMON SHARES
Basic Shares Outstanding	253.7M shares	268.3M shares	277.5M shares
Diluted Shares Outstanding			281.4M shares

Balance Sheet

Concept	2020 Q1	2019 Q1	2019
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.679B	$2.899B	$2.899B
YoY Change	26.91%	11.8%	11.8%
Cash & Equivalents	$3.679B	$2.899B	$2.899B
Short-Term Investments
Other Short-Term Assets	$270.0M	$359.0M	$986.0M
YoY Change	-24.79%	-23.45%	-36.22%
Inventory
Prepaid Expenses	$646.0M	$627.0M
Receivables	$4.392B	$5.181B	$5.181B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$8.987B	$9.066B	$9.066B
YoY Change	-0.87%	-5.76%	-5.76%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.975B	$3.179B	$3.179B
YoY Change	56.5%	-5.47%	-5.47%
Goodwill	$2.017B	$7.606B
YoY Change	-73.48%	-0.17%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$4.031B	$3.429B	$3.784B
YoY Change	17.56%	6.92%	-38.37%
Total Long-Term Assets	$17.02B	$20.51B	$20.51B
YoY Change	-17.01%	-15.61%	-15.61%
TOTAL ASSETS
Total Short-Term Assets	$8.987B	$9.066B	$9.066B
Total Long-Term Assets	$17.02B	$20.51B	$20.51B
Total Assets	$26.01B	$29.57B	$29.57B
YoY Change	-12.06%	-12.82%	-12.82%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.598B	$1.666B	$1.666B
YoY Change	-4.08%	10.11%	10.11%
Accrued Expenses	$2.801B	$3.355B	$3.994B
YoY Change	-16.51%	7.53%	3.61%
Deferred Revenue	$1.021B	$1.630B
YoY Change	-37.36%	-0.67%
Short-Term Debt	$542.0M	$694.0M	$694.0M
YoY Change	-21.9%	-19.58%	-19.58%
Long-Term Debt Due	$290.0M	$766.0M	$1.248B
YoY Change	-62.14%	74.49%	18.29%
Total Short-Term Liabilities	$7.895B	$9.453B	$9.453B
YoY Change	-16.48%	-4.05%	-4.05%
LONG-TERM LIABILITIES
Long-Term Debt	$8.672B	$5.470B	$5.470B
YoY Change	58.54%	-10.21%	-10.21%
Other Long-Term Liabilities	$594.0M	$696.0M	$1.742B
YoY Change	-14.66%	-17.54%	-41.43%
Total Long-Term Liabilities	$9.266B	$6.166B	$7.212B
YoY Change	50.28%	-11.1%	-20.45%
TOTAL LIABILITIES
Total Short-Term Liabilities	$7.895B	$9.453B	$9.453B
Total Long-Term Liabilities	$9.266B	$6.166B	$7.212B
Total Liabilities	$20.88B	$17.85B	$18.17B
YoY Change	16.96%	-11.13%	-11.07%
SHAREHOLDERS EQUITY
Retained Earnings	-$5.177B	$478.0M
YoY Change	-1183.05%	-63.26%
Common Stock	$3.000M	$3.000M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$152.0M	$136.0M
YoY Change	11.76%	60.0%
Treasury Stock Shares	2.149M shares	1.789M shares
Shareholders Equity	$4.785B	$11.40B	$11.40B
YoY Change
Total Liabilities & Shareholders Equity	$26.01B	$29.57B	$29.57B
YoY Change	-12.06%	-12.82%	-12.82%

Cashflow Statement

Concept	2020 Q1	2019 Q1	2019
OPERATING ACTIVITIES
Net Income	-$3.495B	$274.0M	$1.257B
YoY Change	-1375.55%	-51.07%	-28.21%
Depreciation, Depletion And Amortization	$531.0M	$509.0M	$2.023B
YoY Change	4.32%	-18.82%	0.45%
Cash From Operating Activities	$288.0M	$748.0M	$1.783B
YoY Change	-61.5%	34.29%	-30.54%
INVESTING ACTIVITIES
Capital Expenditures	-$228.0M	-$256.0M	$297.0M
YoY Change	-10.94%	48.84%	32.59%
Acquisitions			$365.0M
YoY Change			79.8%
Other Investing Activities	$213.0M	$365.0M	-$10.00M
YoY Change	-41.64%	201.65%	150.0%
Cash From Investing Activities	-$15.00M	$109.0M	$69.00M
YoY Change	-113.76%	-313.73%	-90.4%
FINANCING ACTIVITIES
Cash Dividend Paid			$210.0M
YoY Change			20.69%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net			$2.625B
YoY Change			69.68%
Cash From Financing Activities	962.0M	-480.0M	-$1.663B
YoY Change	-300.42%	-36.34%	-12.01%
NET CHANGE
Cash From Operating Activities	288.0M	748.0M	$1.783B
Cash From Investing Activities	-15.00M	109.0M	$69.00M
Cash From Financing Activities	962.0M	-480.0M	-$1.663B
Net Change In Cash	1.235B	377.0M	$170.0M
YoY Change	227.59%	-252.02%	-88.36%
FREE CASH FLOW
Cash From Operating Activities	$288.0M	$748.0M	$1.783B
Capital Expenditures	-$228.0M	-$256.0M	$297.0M
Free Cash Flow	$516.0M	$1.004B	$1.486B
YoY Change	-48.61%	37.72%	-36.58%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Registrant Name EntityRegistrantName	DXC Technology Co
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001688568
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
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CY2021	dei	Local Phone Number LocalPhoneNumber	245-9675
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CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-03-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	1-4850
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NV
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	61-1800317
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1775 Tysons Boulevard
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Tysons
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	VA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	22102
CY2021	dei	City Area Code CityAreaCode	703
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2020	us-gaap	Interest Income Operating InterestIncomeOperating	165000000	USD
CY2019	us-gaap	Interest Income Operating InterestIncomeOperating	128000000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-41000000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	2004000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2020	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	632000000	USD
CY2019	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2021	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-102000000	USD
CY2020	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	720000000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	306000000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	17075000000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	24805000000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	19238000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	654000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-5228000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1515000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	800000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	130000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	288000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-146000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-5358000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1227000000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	35000000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	-146000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-5358000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	1262000000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3000000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	11000000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-149000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-5369000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1257000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.59
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-20.76
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	4.40
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.13
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.59
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-20.76
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.53
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.59
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-20.76
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	4.35
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.12
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.59
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-20.76
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.47
CY2021	us-gaap	Profit Loss ProfitLoss	-146000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-5358000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	1262000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	300000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-323000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-259000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	19000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-17000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-12000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-9000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	-7000000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	21000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-13000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-8000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-13000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	6000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	8000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	34000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	304000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-348000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-305000000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	158000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-5706000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	957000000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	6000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	22000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2000000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	152000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-5728000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	955000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-27000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-2000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-1000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	6000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-5000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax	-3000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	-2000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBenefitPlanImprovementTaxEffect	5000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	4000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	1000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	2000000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	-146000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-5358000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	1262000000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1988000000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1960000000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2023000000	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6794000000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021	dxc	Operating Lease Expense Noncash OperatingLeaseExpenseNoncash	616000000	USD
CY2020	dxc	Operating Lease Expense Noncash OperatingLeaseExpenseNoncash	698000000	USD
CY2019	dxc	Operating Lease Expense Noncash OperatingLeaseExpenseNoncash	0	USD
CY2021	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	519000000	USD
CY2020	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-244000000	USD
CY2019	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	143000000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	56000000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	68000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	74000000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-403000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-56000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	97000000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1983000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-1000000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	163000000	USD
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	53000000	USD
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3000000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-10000000	USD
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	36000000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-24000000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-30000000	USD
CY2021	dxc	Impairment Losses And Contract Writeoffs ImpairmentLossesAndContractWriteoffs	275000000	USD
CY2020	dxc	Impairment Losses And Contract Writeoffs ImpairmentLossesAndContractWriteoffs	30000000	USD
CY2019	dxc	Impairment Losses And Contract Writeoffs ImpairmentLossesAndContractWriteoffs	0	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-41000000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	3000000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	-4000000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	-10000000	USD
CY2021	dxc	Cash Surrender Value In Excess Of Premiums Paid CashSurrenderValueInExcessOfPremiumsPaid	-3000000	USD
CY2020	dxc	Cash Surrender Value In Excess Of Premiums Paid CashSurrenderValueInExcessOfPremiumsPaid	-12000000	USD
CY2019	dxc	Cash Surrender Value In Excess Of Premiums Paid CashSurrenderValueInExcessOfPremiumsPaid	-11000000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1000000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-11000000	USD
CY2021	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-257000000	USD
CY2020	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-269000000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	947000000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	299000000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	229000000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	632000000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-527000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-565000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-52000000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	434000000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-197000000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-107000000	USD
CY2021	dxc	Increase Decreasein Operating Lease Liability IncreaseDecreaseinOperatingLeaseLiability	-616000000	USD
CY2020	dxc	Increase Decreasein Operating Lease Liability IncreaseDecreaseinOperatingLeaseLiability	-698000000	USD
CY2019	dxc	Increase Decreasein Operating Lease Liability IncreaseDecreaseinOperatingLeaseLiability	0	USD
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-66000000	USD
CY2020	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-146000000	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-74000000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	40000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-12000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-149000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	124000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2350000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1783000000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	261000000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	350000000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	297000000	USD
CY2021	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	261000000	USD
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	281000000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	394000000	USD
CY2021	us-gaap	Payments To Acquire Software PaymentsToAcquireSoftware	254000000	USD
CY2020	us-gaap	Payments To Acquire Software PaymentsToAcquireSoftware	235000000	USD
CY2019	us-gaap	Payments To Acquire Software PaymentsToAcquireSoftware	261000000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-184000000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1997000000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	365000000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	4947000000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	-65000000	USD
CY2021	dxc	Proceeds From Deferred Purchase Price Receivable ProceedsFromDeferredPurchasePriceReceivable	159000000	USD
CY2020	dxc	Proceeds From Deferred Purchase Price Receivable ProceedsFromDeferredPurchasePriceReceivable	671000000	USD
CY2019	dxc	Proceeds From Deferred Purchase Price Receivable ProceedsFromDeferredPurchasePriceReceivable	1084000000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	164000000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	73000000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	357000000	USD
CY2021	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	USD
CY2020	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	75000000	USD
CY2019	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	0	USD
CY2021	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	0	USD
CY2020	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	38000000	USD
CY2019	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	0	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	13000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-19000000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-10000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	4665000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2137000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	69000000	USD
CY2021	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	1486000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	4939000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	2747000000	USD
CY2021	us-gaap	Repayments Of Commercial Paper RepaymentsOfCommercialPaper	1852000000	USD
CY2020	us-gaap	Repayments Of Commercial Paper RepaymentsOfCommercialPaper	5076000000	USD
CY2019	us-gaap	Repayments Of Commercial Paper RepaymentsOfCommercialPaper	2840000000	USD
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2500000000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1500000000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2021	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	4000000000	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	2198000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	1646000000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3552000000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1039000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2625000000	USD
CY2021	dxc	Repayments Of Capital Lease Obligations And Asset Financing RepaymentsOfCapitalLeaseObligationsAndAssetFinancing	930000000	USD
CY2020	dxc	Repayments Of Capital Lease Obligations And Asset Financing RepaymentsOfCapitalLeaseObligationsAndAssetFinancing	865000000	USD
CY2019	dxc	Repayments Of Capital Lease Obligations And Asset Financing RepaymentsOfCapitalLeaseObligationsAndAssetFinancing	944000000	USD
CY2021	dxc	Proceeds From Borrowings For Spin Transaction ProceedsFromBorrowingsForSpinTransaction	0	USD
CY2020	dxc	Proceeds From Borrowings For Spin Transaction ProceedsFromBorrowingsForSpinTransaction	0	USD
CY2019	dxc	Proceeds From Borrowings For Spin Transaction ProceedsFromBorrowingsForSpinTransaction	1114000000	USD
CY2021	dxc	Proceeds From Bond Issuance ProceedsFromBondIssuance	993000000	USD
CY2020	dxc	Proceeds From Bond Issuance ProceedsFromBondIssuance	0	USD
CY2019	dxc	Proceeds From Bond Issuance ProceedsFromBondIssuance	753000000	USD
CY2021	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	1000000	USD
CY2020	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	11000000	USD
CY2019	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	47000000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7000000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	16000000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	54000000	USD
CY2021	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	0	USD
CY2020	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	736000000	USD
CY2019	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	1344000000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	53000000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	214000000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	210000000	USD
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	41000000	USD
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-21000000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-45000000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	47000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-5476000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	657000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1663000000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39000000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-90000000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-19000000	USD
CY2021	dxc	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingDisposalGroupAndDiscontinuedOperations	-648000000	USD
CY2020	dxc	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingDisposalGroupAndDiscontinuedOperations	780000000	USD
CY2019	dxc	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingDisposalGroupAndDiscontinuedOperations	170000000	USD
CY2021	dxc	Cash Classified As Held For Sale Period Increase Decrease CashClassifiedAsHeldForSalePeriodIncreaseDecrease	-63000000	USD
CY2020	dxc	Cash Classified As Held For Sale Period Increase Decrease CashClassifiedAsHeldForSalePeriodIncreaseDecrease	0	USD
CY2019	dxc	Cash Classified As Held For Sale Period Increase Decrease CashClassifiedAsHeldForSalePeriodIncreaseDecrease	0	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-711000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	780000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	170000000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3679000000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2899000000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2729000000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2968000000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3679000000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2899000000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13837000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	1262000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-305000000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	74000000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	51000000	USD
CY2019	dxc	Stock Repurchasedand Retired During Period Including Accelerated Share Repurchase Adjustment Value StockRepurchasedandRetiredDuringPeriodIncludingAcceleratedShareRepurchaseAdjustmentValue	1339000000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	37000000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.76
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	209000000	USD
CY2019	dxc	Noncontrolling Interest Decrease From Distributions To Noncontrolling Interest Holders And Other NoncontrollingInterestDecreaseFromDistributionsToNoncontrollingInterestHoldersAndOther	-29000000	USD
CY2019	us-gaap	Stockholders Equity Note Spinoff Transaction StockholdersEquityNoteSpinoffTransaction	-1666000000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11725000000	USD
CY2019Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	1788658	shares
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	11725000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-5358000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-348000000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	70000000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	16000000	USD
CY2020	dxc	Stock Repurchasedand Retired During Period Including Accelerated Share Repurchase Adjustment Value StockRepurchasedandRetiredDuringPeriodIncludingAcceleratedShareRepurchaseAdjustmentValue	736000000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	12000000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.84
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	219000000	USD
CY2020	dxc	Noncontrolling Interest Decrease From Distributions To Noncontrolling Interest Holders And Other NoncontrollingInterestDecreaseFromDistributionsToNoncontrollingInterestHoldersAndOther	-1000000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5129000000	USD
CY2020Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	2148708	shares
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5129000000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	-146000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	304000000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	46000000	USD
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	6000000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1000000	USD
CY2021	dxc	Noncontrolling Interest Decrease From Distributions To Noncontrolling Interest Holders And Other NoncontrollingInterestDecreaseFromDistributionsToNoncontrollingInterestHoldersAndOther	-16000000	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5308000000	USD
CY2021Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	2458027	shares
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the financial statements, in accordance with GAAP, requires the Company's management to make estimates and assumptions that affect reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on assumptions regarding historical experience, currently available information, and anticipated developments that it believes are reasonable and appropriate. However, because the use of estimates involves an inherent degree of uncertainty, actual results could differ from those estimates. The severity, magnitude and duration, as well as the economic consequences of the COVID-19 crisis, are uncertain, rapidly changing and difficult to predict. Therefore, accounting estimates and assumptions may change over time in response to the COVID-19 crisis and may change materially in future periods. Estimates are used for, but not limited to, contracts accounted for using the percentage-of-completion method, cash flows used in the evaluation of impairment of goodwill and other long-lived assets, reserves for uncertain tax positions, valuation allowances on deferred tax assets, loss accruals for litigation, and obligations related to our pension plans. In the opinion of the Company's management, the accompanying financial statements contain all adjustments necessary, including those of a normal recurring nature, to fairly present the financial statements.</span></div>
CY2021Q1	us-gaap	Capitalized Contract Cost Amortization Period CapitalizedContractCostAmortizationPeriod	P5Y
CY2020	dxc	Increase Decreasein Depreciation IncreaseDecreaseinDepreciation	-225000000	USD
CY2020Q4	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3500000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-149000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-5369000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1222000000	USD
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	35000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-149000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-5369000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	1257000000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	254140000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	258570000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	277540000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3890000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	254140000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	258570000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	281430000	shares
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.59
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-20.76
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	4.40
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.13
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.59
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-20.76
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.53
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.59
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-20.76
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	4.35
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.12
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.59
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-20.76
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.47
CY2021Q1	us-gaap	Receivables Net Current ReceivablesNetCurrent	4156000000	USD
CY2020Q1	us-gaap	Receivables Net Current ReceivablesNetCurrent	4392000000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	74000000	USD
CY2019Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	60000000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	53000000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3000000	USD
CY2021	dxc	Accounts Receivable Allowance For Credit Loss Writeoff And Other AccountsReceivableAllowanceForCreditLossWriteoffAndOther	-40000000	USD
CY2020	dxc	Accounts Receivable Allowance For Credit Loss Writeoff And Other AccountsReceivableAllowanceForCreditLossWriteoffAndOther	11000000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	91000000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	74000000	USD
CY2021	dxc	Transfersof Financial Assets Accountedforas Sale Securitization Facility Extension Term TransfersofFinancialAssetsAccountedforasSaleSecuritizationFacilityExtensionTerm	P1Y
CY2021	dxc	Lessee Lease Renewal Term LesseeLeaseRenewalTerm	P10Y
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	616000000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	698000000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	53000000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	49000000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	56000000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	46000000	USD
CY2021	us-gaap	Sublease Income SubleaseIncome	40000000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	45000000	USD
CY2021	us-gaap	Lease Cost LeaseCost	685000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	748000000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	433000000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	405000000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	45000000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	65000000	USD
CY2021	dxc	Finance Lease Cost FinanceLeaseCost	478000000	USD
CY2020	dxc	Finance Lease Cost FinanceLeaseCost	470000000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	616000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	698000000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	45000000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	65000000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	584000000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	576000000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1366000000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1428000000	USD
CY2021Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	834000000	USD
CY2020Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1220000000	USD
CY2021Q1	dxc	Lease Rightof Use Asset LeaseRightofUseAsset	2200000000	USD
CY2020Q1	dxc	Lease Rightof Use Asset LeaseRightofUseAsset	2648000000	USD
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	418000000	USD
CY2020Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	482000000	USD
CY2021Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	398000000	USD
CY2020Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	444000000	USD
CY2021Q1	dxc	Lease Liability Current LeaseLiabilityCurrent	816000000	USD
CY2020Q1	dxc	Lease Liability Current LeaseLiabilityCurrent	926000000	USD
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1038000000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1063000000	USD
CY2021Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	496000000	USD
CY2020Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	602000000	USD
CY2021Q1	dxc	Lease Liability Noncurrent LeaseLiabilityNoncurrent	1534000000	USD
CY2020Q1	dxc	Lease Liability Noncurrent LeaseLiabilityNoncurrent	1665000000	USD
CY2021Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y10M24D
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y9M18D
CY2021Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y7M6D
CY2020Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y8M12D
CY2021Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.038
CY2021Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	933000000	USD
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040
CY2021Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.036
CY2020Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.064
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	418000000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	290000000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	152000000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	59000000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	14000000	USD
CY2021Q1	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	39000000	USD
CY2021Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	894000000	USD
CY2020	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2021	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2020	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
CY2021	us-gaap	Tangible Asset Impairment Charges TangibleAssetImpairmentCharges	0	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	dxc	Concentration Risk Credit Risk Financial Instrument Numberof Counterparties ConcentrationRiskCreditRiskFinancialInstrumentNumberofCounterparties	5	counterparty
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	7067000000	USD
CY2020Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	7365000000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	4121000000	USD
CY2020Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	3818000000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	2946000000	USD
CY2020Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	3547000000	USD
CY2021	us-gaap	Depreciation Depreciation	754000000	USD
CY2020	us-gaap	Depreciation Depreciation	643000000	USD
CY2019	us-gaap	Depreciation Depreciation	820000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	8465000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4422000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4043000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	10078000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4347000000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5731000000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1216000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1299000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1148000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	837000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	755000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	669000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	554000000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	505000000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	2017000000	USD
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	15000000	USD
CY2021	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	1355000000	USD
CY2021	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	-90000000	USD
CY2021	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	54000000	USD
CY2021Q1	us-gaap	Goodwill Gross GoodwillGross	10197000000	USD
CY2021Q1	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	9556000000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	641000000	USD
CY2019Q1	us-gaap	Goodwill Goodwill	7606000000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	1358000000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6794000000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-153000000	USD
CY2020Q1	us-gaap	Goodwill Gross GoodwillGross	11573000000	USD
CY2020Q1	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	9556000000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	2017000000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6794000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	975000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-2928000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	511000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-321000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-2300000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1004000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	654000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-5228000000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-221000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1515000000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	730000000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-50000000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	257000000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	16000000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	42000000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	216000000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	167000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	218000000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1203000000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	186000000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	210000000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-125000000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	95000000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-51000000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	17000000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	23000000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-131000000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	52000000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-40000000	USD
CY2021	dxc	Deferred Income Tax Expense Benefit As Adjusted DeferredIncomeTaxExpenseBenefitAsAdjusted	-403000000	USD
CY2020	dxc	Deferred Income Tax Expense Benefit As Adjusted DeferredIncomeTaxExpenseBenefitAsAdjusted	-56000000	USD
CY2019	dxc	Deferred Income Tax Expense Benefit As Adjusted DeferredIncomeTaxExpenseBenefitAsAdjusted	78000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	800000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	130000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	288000000	USD
CY2021	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense	-4000000	USD
CY2020	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense	-31000000	USD
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense	-44000000	USD
CY2021	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	2000000	USD
CY2020	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	2000000	USD
CY2019	us-gaap	Income Tax Examination Penalties And Interest Expense IncomeTaxExaminationPenaltiesAndInterestExpense	1000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.108
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.014
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.032
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-1.984
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.119
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.184
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.283
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	2.393
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.121
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.169
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.487
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.026
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.006
CY2021	dxc	Effective Income Tax Rate Reconciliation Arbitration Award Percent EffectiveIncomeTaxRateReconciliationArbitrationAwardPercent	0
CY2020	dxc	Effective Income Tax Rate Reconciliation Arbitration Award Percent EffectiveIncomeTaxRateReconciliationArbitrationAwardPercent	-0.036
CY2019	dxc	Effective Income Tax Rate Reconciliation Arbitration Award Percent EffectiveIncomeTaxRateReconciliationArbitrationAwardPercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.172
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.011
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.015
CY2021	dxc	Effective Income Tax Rate Reconciliation Withholding Taxes Percent EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent	0.103
CY2020	dxc	Effective Income Tax Rate Reconciliation Withholding Taxes Percent EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent	-0.009
CY2019	dxc	Effective Income Tax Rate Reconciliation Withholding Taxes Percent EffectiveIncomeTaxRateReconciliationWithholdingTaxesPercent	0.035
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.176
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	-0.004
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.024
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.022
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.001
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.011
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.005
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.001
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.001
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	-0.007
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	0.007
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent	-0.034
CY2021	dxc	Effective Income Tax Rate Reconciliation Change In Reinvestment Assertion Percent EffectiveIncomeTaxRateReconciliationChangeInReinvestmentAssertionPercent	0
CY2020	dxc	Effective Income Tax Rate Reconciliation Change In Reinvestment Assertion Percent EffectiveIncomeTaxRateReconciliationChangeInReinvestmentAssertionPercent	0
CY2019	dxc	Effective Income Tax Rate Reconciliation Change In Reinvestment Assertion Percent EffectiveIncomeTaxRateReconciliationChangeInReinvestmentAssertionPercent	-0.031
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0.526
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
CY2021	dxc	Effective Income Tax Rate Reconciliation Capital Losses Percent EffectiveIncomeTaxRateReconciliationCapitalLossesPercent	0.057
CY2020	dxc	Effective Income Tax Rate Reconciliation Capital Losses Percent EffectiveIncomeTaxRateReconciliationCapitalLossesPercent	0
CY2019	dxc	Effective Income Tax Rate Reconciliation Capital Losses Percent EffectiveIncomeTaxRateReconciliationCapitalLossesPercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.043
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.007
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	1.223
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.025
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.190
CY2021	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	344000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0.526
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1565000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	2.393
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	319000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.487
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	112000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.172
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	1482000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.283
CY2020	dxc	Effective Income Tax Rate Reconciliation Arbitration Award Amount EffectiveIncomeTaxRateReconciliationArbitrationAwardAmount	186000000	USD
CY2020	dxc	Effective Income Tax Rate Reconciliation Arbitration Award Percent EffectiveIncomeTaxRateReconciliationArbitrationAwardPercent	-0.036
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	631000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.121
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	135000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.026
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	256000000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.169
CY2019	dxc	Effective Income Tax Rate Reconciliation Changein Deferred Revenue Accounting Method Amount EffectiveIncomeTaxRateReconciliationChangeinDeferredRevenueAccountingMethodAmount	66000000	USD
CY2019	dxc	Effective Income Tax Rate Reconciliation Change In Deferred Revenue Accounting Method Percent EffectiveIncomeTaxRateReconciliationChangeInDeferredRevenueAccountingMethodPercent	0.043
CY2021Q1	us-gaap	Deferred Tax Assets Unrealized Losses On Trading Securities DeferredTaxAssetsUnrealizedLossesOnTradingSecurities	32000000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Unrealized Losses On Trading Securities DeferredTaxAssetsUnrealizedLossesOnTradingSecurities	0	USD
CY2021Q1	dxc	Total Of Deferred Tax Assets Operating Loss Carryforwards And Deferred Tax Assets Tax Credit Carryforwards TotalOfDeferredTaxAssetsOperatingLossCarryforwardsAndDeferredTaxAssetsTaxCreditCarryforwards	4039000000	USD
CY2020Q1	dxc	Total Of Deferred Tax Assets Operating Loss Carryforwards And Deferred Tax Assets Tax Credit Carryforwards TotalOfDeferredTaxAssetsOperatingLossCarryforwardsAndDeferredTaxAssetsTaxCreditCarryforwards	2516000000	USD
CY2021Q1	dxc	Deferred Tax Assets Accrued Interest DeferredTaxAssetsAccruedInterest	20000000	USD
CY2020Q1	dxc	Deferred Tax Assets Accrued Interest DeferredTaxAssetsAccruedInterest	12000000	USD
CY2021Q1	dxc	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	359000000	USD
CY2020Q1	dxc	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	370000000	USD
CY2021Q1	dxc	Deferred Tax Assets Contract Accounting DeferredTaxAssetsContractAccounting	92000000	USD
CY2020Q1	dxc	Deferred Tax Assets Contract Accounting DeferredTaxAssetsContractAccounting	126000000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	351000000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	144000000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	4893000000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3168000000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3860000000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2162000000	USD
CY2021Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1033000000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1006000000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	513000000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	850000000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	339000000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	343000000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	0	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	68000000	USD
CY2021Q1	dxc	Deferred Tax Liabilities Deferred Expense Employee Benefits DeferredTaxLiabilitiesDeferredExpenseEmployeeBenefits	6000000	USD
CY2020Q1	dxc	Deferred Tax Liabilities Deferred Expense Employee Benefits DeferredTaxLiabilitiesDeferredExpenseEmployeeBenefits	48000000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	246000000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	150000000	USD
CY2021Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1104000000	USD
CY2020Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1459000000	USD
CY2021Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	71000000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	453000000	USD
CY2021Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	67000000	USD
CY2020Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	58000000	USD
CY2021Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	67000000	USD
CY2020Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	58000000	USD
CY2021Q1	us-gaap	Income Taxes Receivable Noncurrent IncomeTaxesReceivableNoncurrent	136000000	USD
CY2020Q1	us-gaap	Income Taxes Receivable Noncurrent IncomeTaxesReceivableNoncurrent	180000000	USD
CY2021Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	289000000	USD
CY2020Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	265000000	USD
CY2021Q1	dxc	Income Tax Receivable And Deferred Income Tax Assets Noncurrent IncomeTaxReceivableAndDeferredIncomeTaxAssetsNoncurrent	425000000	USD
CY2020Q1	dxc	Income Tax Receivable And Deferred Income Tax Assets Noncurrent IncomeTaxReceivableAndDeferredIncomeTaxAssetsNoncurrent	445000000	USD
CY2021Q1	dxc	Income Tax Assets Currentand Noncurrent IncomeTaxAssetsCurrentandNoncurrent	492000000	USD
CY2020Q1	dxc	Income Tax Assets Currentand Noncurrent IncomeTaxAssetsCurrentandNoncurrent	503000000	USD
CY2021Q1	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	30000000	USD
CY2020Q1	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	12000000	USD
CY2021Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	368000000	USD
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CY2021	dxc	Depreciation And Amortization Net Of Acquired Intangible Asset Amortization DepreciationAndAmortizationNetOfAcquiredIntangibleAssetAmortization	1440000000	USD
CY2020	us-gaap	Revenues Revenues	19577000000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	3269000000	USD
CY2019	dxc	Depreciation And Amortization Net Of Acquired Intangible Asset Amortization DepreciationAndAmortizationNetOfAcquiredIntangibleAssetAmortization	1429000000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	2061000000	USD
CY2020	dxc	Depreciation And Amortization Net Of Acquired Intangible Asset Amortization DepreciationAndAmortizationNetOfAcquiredIntangibleAssetAmortization	1359000000	USD
CY2019	us-gaap	Revenues Revenues	20753000000	USD
CY2021	dxc	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	530000000	USD
CY2020	dxc	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	583000000	USD
CY2019	dxc	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	539000000	USD
CY2021	us-gaap	Interest Income Operating InterestIncomeOperating	98000000	USD
CY2020	us-gaap	Interest Income Operating InterestIncomeOperating	165000000	USD
CY2019	us-gaap	Interest Income Operating InterestIncomeOperating	128000000	USD
CY2021	us-gaap	Interest Expense InterestExpense	361000000	USD
CY2020	us-gaap	Interest Expense InterestExpense	383000000	USD
CY2019	us-gaap	Interest Expense InterestExpense	334000000	USD
CY2021	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	358000000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	551000000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	252000000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	465000000	USD
CY2020	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	318000000	USD
CY2019	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	401000000	USD
CY2021	dxc	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	530000000	USD
CY2020	dxc	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	583000000	USD
CY2019	dxc	Amortization Of Acquired Intangible Assets AmortizationOfAcquiredIntangibleAssets	539000000	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	2004000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-519000000	USD
CY2020	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	244000000	USD
CY2019	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments1 DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1	-143000000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-41000000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	190000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	6794000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2020	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	632000000	USD
CY2019	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	654000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-5228000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1515000000	USD
CY2021Q1	us-gaap	Noncurrent Assets NoncurrentAssets	2946000000	USD
CY2020Q1	us-gaap	Noncurrent Assets NoncurrentAssets	3547000000	USD
CY2021	us-gaap	Revenues Revenues	17729000000	USD
CY2020	us-gaap	Revenues Revenues	19577000000	USD
CY2019	us-gaap	Revenues Revenues	20753000000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	23000000000	USD
CY2021Q1	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.39
CY2021Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	2871000000	USD
CY2020Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	3059000000	USD
CY2021Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	351000000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	454000000	USD
CY2021Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1701000000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1756000000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1756000000	USD
CY2019Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1886000000	USD
CY2021	dxc	Contract With Customer Liability Increase From Cash Receipts ContractWithCustomerLiabilityIncreaseFromCashReceipts	2933000000	USD
CY2020	dxc	Contract With Customer Liability Increase From Cash Receipts ContractWithCustomerLiabilityIncreaseFromCashReceipts	2910000000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-2922000000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-2925000000	USD
CY2021	dxc	Contract With Customer Liability Currency Translation Adjustment ContractWithCustomerLiabilityCurrencyTranslationAdjustment	128000000	USD
CY2020	dxc	Contract With Customer Liability Currency Translation Adjustment ContractWithCustomerLiabilityCurrencyTranslationAdjustment	-48000000	USD
CY2021	dxc	Contract With Customer Liability Other ContractWithCustomerLiabilityOther	-194000000	USD
CY2020	dxc	Contract With Customer Liability Other ContractWithCustomerLiabilityOther	-67000000	USD
CY2021Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1701000000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1756000000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	551000000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	252000000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	465000000	USD
CY2021Q1	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	225000000	USD
CY2020Q1	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	145000000	USD
CY2021Q1	us-gaap	Restructuring Reserve Noncurrent RestructuringReserveNoncurrent	45000000	USD
CY2020Q1	us-gaap	Restructuring Reserve Noncurrent RestructuringReserveNoncurrent	35000000	USD
CY2021Q1	us-gaap	Restructuring Reserve RestructuringReserve	270000000	USD
CY2020Q1	us-gaap	Restructuring Reserve RestructuringReserve	180000000	USD
CY2021Q1	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	1487000000	USD
CY2021Q1	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	1227000000	USD
CY2021Q1	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	423000000	USD
CY2021Q1	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	175000000	USD
CY2021Q1	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	177000000	USD
CY2021Q1	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	15000000	USD
CY2021Q1	us-gaap	Purchase Obligation PurchaseObligation	3504000000	USD
CY2021Q1	dxc	Expiration Of Guarantee In Next Fiscal Year ExpirationOfGuaranteeInNextFiscalYear	341000000	USD
CY2021Q1	dxc	Expiration Of Guarantee In Second Fiscal Year ExpirationOfGuaranteeInSecondFiscalYear	74000000	USD
CY2021Q1	dxc	Expiration Of Guarantee In Third Fiscal Year And Thereafter ExpirationOfGuaranteeInThirdFiscalYearAndThereafter	590000000	USD
CY2021Q1	dxc	Total Guarantees Outstanding TotalGuaranteesOutstanding	1005000000	USD
CY2017Q1	dxc	Loss Contingency Number Of Partially Owned Joint Ventures Involvedin Possible Sanctions Law Violations LossContingencyNumberOfPartiallyOwnedJointVenturesInvolvedinPossibleSanctionsLawViolations	2	joint_venture

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$DXC
DXC Technology Co Stock $dxc

2020 Q1 Form 10-K Financial Statement

#000168856821000029 Filed on May 28, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DXC DXC Technology Co Stock $dxc

2020 Q1 Form 10-K Financial Statement

#000168856821000029 Filed on May 28, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DXC
DXC Technology Co Stock $dxc