| Cover Page | Feb. 18, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Feb. 18, 2021 |
| Entity Registrant Name | CONDUENT INC |
| Entity Central Index Key | 0001677703 |
| Entity Emerging Growth Company | false |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | CNDT |
| Security Exchange Name | NASDAQ |
| Entity File Number | 001-37817 |
| Entity Incorporation, State or Country Code | NY |
| Entity Tax Identification Number | 81-2983623 |
| 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 |
| City Area Code | 844 |
| Local Phone Number | 663-2638 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
