Restructuring Reserve, Costs Not Affecting Restructuring Liability

No definition available.

Name:	dxc_RestructuringReserveCostsNotAffectingRestructuringLiability
Namespace Prefix:	dxc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3367-108585

+ Details

Name:	us-gaap_PaymentsForRestructuring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=109237686&loc=d3e17752-110868

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b)(1))
-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

+ Details

Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b)(2))
-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

+ Details

Name:	us-gaap_RestructuringReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	us-gaap_RestructuringReserveRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b)(2))
-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

+ Details

Name:	us-gaap_RestructuringReserveTranslationAdjustment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_RestructuringPlanAxis=dxc_RestructuringPlanFiscal2023PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringCostAndReserveAxis=us-gaap_FacilityClosingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringPlanAxis=dxc_RestructuringPlanFiscal2022PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RestructuringPlanAxis=dxc_RestructuringPlanOtherPriorYearPlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Restructuring Costs - Restructuring Liability (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			$ 152
Costs Expensed, Net of Reversals	$ 49	$ 36	135	$ 248
Costs Not Affecting Restructuring Liability			(23)
Cash Paid			(154)
Other			(7)
Restructuring Liability, ending balance	103		103
Fiscal 2023 Plan
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			0
Costs Expensed, Net of Reversals			111
Costs Not Affecting Restructuring Liability			(17)
Cash Paid			(57)
Other			(1)
Restructuring Liability, ending balance	36		36
Fiscal 2023 Plan \| Workforce Reductions
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			0
Costs Expensed, Net of Reversals			85
Costs Not Affecting Restructuring Liability			0
Cash Paid			(50)
Other			0
Restructuring Liability, ending balance	35		35
Fiscal 2023 Plan \| Facilities Costs
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			0
Costs Expensed, Net of Reversals			26
Costs Not Affecting Restructuring Liability			(17)
Cash Paid			(7)
Other			(1)
Restructuring Liability, ending balance	1		1
Fiscal 2022 Plan
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			85
Costs Expensed, Net of Reversals			26
Costs Not Affecting Restructuring Liability			(6)
Cash Paid			(70)
Other			(4)
Restructuring Liability, ending balance	31		31
Fiscal 2022 Plan \| Workforce Reductions
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			84
Costs Expensed, Net of Reversals			(1)
Costs Not Affecting Restructuring Liability			0
Cash Paid			(48)
Other			(5)
Restructuring Liability, ending balance	30		30
Fiscal 2022 Plan \| Facilities Costs
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			1
Costs Expensed, Net of Reversals			27
Costs Not Affecting Restructuring Liability			(6)
Cash Paid			(22)
Other			1
Restructuring Liability, ending balance	1		1
Other Prior Year and Acquired Plans
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			67
Costs Expensed, Net of Reversals			(2)
Costs Not Affecting Restructuring Liability			0
Cash Paid			(27)
Other			(2)
Restructuring Liability, ending balance	36		36
Other Prior Year and Acquired Plans \| Workforce Reductions
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			64
Costs Expensed, Net of Reversals			(1)
Costs Not Affecting Restructuring Liability			0
Cash Paid			(27)
Other			(3)
Restructuring Liability, ending balance	33		33
Other Prior Year and Acquired Plans \| Facilities Costs
Restructuring Reserve [Roll Forward]
Restructuring Liability, beginning balance			3
Costs Expensed, Net of Reversals			(1)
Costs Not Affecting Restructuring Liability			0
Cash Paid			0
Other			1
Restructuring Liability, ending balance	$ 3		$ 3