Cover Page - $ / shares	3 Months Ended
	Mar. 31, 2021	Apr. 30, 2021
Cover [Abstract]
Document Type	10-Q
Document Period End Date	Mar. 31, 2021
Entity File Number	001-37817
Entity Registrant Name	CONDUENT INC
Entity Incorporation, State or Country Code	NY
Entity Address, Address Line One	100 Campus Drive,
Entity Address, Address Line Two	Suite 200,
Entity Address, City or Town	Florham Park,
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07932
Entity Tax Identification Number	81-2983623
Entity Shell Company	false
Entity Current Reporting Status	Yes
City Area Code	844
Local Phone Number	663-2638
Entity Interactive Data Current	Yes
Entity Common Stock, Shares Outstanding		212,388,620
Common Stock, Par or Stated Value Per Share	$ 0.01
Document Transition Report	false
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Security Exchange Name	NASDAQ
Trading Symbol	CNDT
Entity Central Index Key	0001677703
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Amendment Flag	false
Document Quarterly Report	true
Title of 12(b) Security	Common Stock, $0.01 par value