Cover Page - shares	3 Months Ended
	Jun. 30, 2022	Jul. 25, 2022
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-38033
Entity Registrant Name	DXC TECHNOLOGY COMPANY
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	61-1800317
Entity Address, Address Line One	20408 Bashan Drive, Suite 231
Entity Address, City or Town	Ashburn
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	20147
City Area Code	703
Local Phone Number	972-7000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		229,876,830
Entity Central Index Key	0001688568
Current Fiscal Year End Date	--03-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false
Common Stock, $0.01 par value per share
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	DXC
Security Exchange Name	NYSE
1.750% Senior Notes Due 2026
Entity Information [Line Items]
Title of 12(b) Security	1.750% Senior Notes Due 2026
Trading Symbol	DXC 26
Security Exchange Name	NYSE