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No documentation exists for this element. -- Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Europe Europe [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Capitalized Computer Software, Additions Capitalized Computer Software, Additions Operating segment revenues and profitability Schedule of Segment Reporting Information, by Segment [Table Text Block] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Measurement Basis [Axis] Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Unearned income Deferred Tax Liablilties, Unearned income and installment sales Deferred Tax Liablilties, Unearned income and installment sales Net Amount Finite-Lived Intangible Assets, Net Average Maturity of Foreign Exchange Hedging Contracts - within Six and Twelve Months Average Maturity of Foreign Exchange Hedging Contracts - 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Preferred stock, XRX separation shares issued (in shares) Preferred Stock, Shares Issued Long-term Contract Asset Contract with Customer, Asset, Net, Noncurrent Changes in benefit plans, net Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax Divestitures Effective Income Tax Rate Reconciliation, Disposition of Asset, Percent Schedule of Unrecognized Compensation Cost, Nonvested Awards Share-based Payment Arrangement, Nonvested Award, Cost [Table Text Block] Liabilities and Equity Liabilities and Equity [Abstract] Other long-term assets Other Assets, Noncurrent Revenue and long-lived assets by geography Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Cash Flows from Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Other Comprehensive Income (Loss), Net Other comprehensive income (loss), net Other Comprehensive Income (Loss), Net of Tax Derivative Contract [Domain] Derivative Contract [Domain] Organization, Consolidation and Presentation of Financial Statements [Abstract] Summary of Foreign Exchange Hedging Positions [Abstract] Foreign Currency Derivatives [Abstract] Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Sales Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Sales, Policy [Policy Text Block] Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Useful Life, Maximum Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Useful Life, Maximum Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Useful Life, Maximum 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four Gain Contingencies [Table] Gain Contingencies [Table] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Goodwill held for sale Goodwill held for sale Goodwill held for sale Income Taxes Receivable, Current Income Taxes Receivable, Current Retirement Plan Type [Domain] Retirement Plan Type [Domain] Commercial Vehicle Operations Commercial Vehicle Operations [Member] Commercial Vehicle Operations is part of Public Sector Segment Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Term Loan A due 2021 [Member] Term Loan A due 2021 [Member] Term Loan A due 2021 Payment Solutions Payment Services [Member] Payment Services Other current liabilities Other Liabilities, Current Accounting Policies [Abstract] Accounting Policies [Abstract] Loss Contingency, Damages Paid, Value Loss Contingency, Damages Paid, Value Receivable Type [Domain] Receivable [Domain] Accounts Receivable [Member] Accounts Receivable [Member] United States UNITED STATES Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Write Off Of Unamortized Discount And Deferred Debt Issuance Cost Write Off Of Unamortized Discount And Deferred Debt Issuance Cost Write Off Of Unamortized Discount And Deferred Debt Issuance Cost Unrecognized gains (losses), net Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Deferred Foreign Income Tax Expense (Benefit) Deferred Foreign Income Tax Expense (Benefit) Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross Geographical [Domain] Geographical [Domain] Schedule of Income before Income Tax, Domestic and Foreign Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Entity Address, State or Province Entity Address, State or Province Deferred Tax Assets, Capital Loss Carryforwards Deferred Tax Assets, Capital Loss Carryforwards Net Cash Provided By (Used In) Investing Activities Net Cash Provided by (Used in) Investing Activities Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Average Maturity of Foreign Exchange Hedging Contracts - greater than twelve months Average Maturity of Foreign Exchange Hedging Contracts - greater than twelve months Average Maturity of Foreign Exchange Hedging Contracts - greater than twelve months Schedule of a Summary of Foreign Exchange Contracts Gross Notional Values Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Proceeds from sale of land, buildings and equipment Proceeds from Sale of Property, Plant, and Equipment Accounts payable Accounts Payable, Current Currency Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation Federal Federal [Member] Federal Entity Interactive Data Current Entity Interactive Data Current Common Stock, Par or Stated Value Per Share (in dollars per share) Common Stock, Par or Stated Value Per Share Adjusted Net Income Available to Common Shareholders Adjusted Net Income Available to Common Shareholders, Common Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period) and discontinued operations. Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Other Receivables, Net, Current Other Receivables, Net, Current Buildings and Improvements, Gross Buildings and Improvements, Gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Revenue from Related Parties Revenue from Related Parties Debt Instrument, Redemption, Period Two [Member] Debt Instrument, Redemption, Period Two [Member] Finance Lease, Liability, Payments, Due after Year Five Finance Lease, Liability, Payments, Due after Year Five (Increase) decrease in other current and long-term assets Increase (Decrease) in Other Operating Assets Contingencies and Litigation Commitments and Contingencies Disclosure [Text Block] Leasehold Improvements [Member] Leasehold Improvements [Member] Foreign exchange contracts - forwards Foreign Currency Contracts, Liability, Fair Value Disclosure New Lease Guidance [Member] Accounting Standards Update 2016-02 [Member] Gain Contingency, Unrecorded Amount Gain Contingency, Unrecorded Amount Total Net Current Period Charges Restructuring, Net Current Period Charges Restructuring, Net Current Period Charges Defined Benefit Plan, Benefit Obligation Defined Benefit Plan, Benefit Obligation Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] AR Valuation and Qualifying Accounts Beginning Balance AR Valuation and Qualifying Accounts Ending Balance Allowance for Doubtful Accounts, Premiums and Other Receivables Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Common stock Common Stock, Value, Issued Change in AOCI before reclassification Change in AOCI before reclassification Change in AOCI before reclassification Hosting Arrangement, Service Contract, Implementation Cost, Expense, Amortization Hosting Arrangement, Service Contract, Implementation Cost, Expense, Amortization Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Research and development (excluding depreciation and amortization) Research and Development Expense Restructuring reserve [Roll Forward] Restructuring Reserve [Roll Forward] Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Useful Life, Minimum Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Useful Life, Minimum Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Useful Life, Minimum Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Segment profit (loss) Segment Profit Loss Amount of profit or loss recognized by the reportable segment. Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Schedule of Goodwill Schedule of Goodwill [Table Text Block] Weighted-average common shares outstanding (in shares) Weighted-average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Operating Lease, Right-of-Use Asset Operating Lease, Right-of-Use Asset Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Reductions related to prior years positions Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Equity Components [Axis] Equity Components [Axis] Equity Components [Axis] Total Deferred Taxes, Net Deferred Tax Liabilities, Net Gain Contingencies [Line Items] Gain Contingencies [Line Items] (Gain) loss from investments Gain (Loss) on Investments Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect Damages sought, multiplier of overpayment amount Guarantor Obligations, Maximum Exposure, Undiscounted Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Business Acquisition, Total consideration Business Acquisition, Total consideration Business Acquisition, Total consideration Average Maturity of Foreign Exchange Hedging Contracts - within Three Months Average Maturity of Foreign Exchange Hedging Contracts - within Three Months Average Maturity of Foreign Exchange Hedging Contracts - within Three Months. Outstanding average forward exchange and purchase option contracts that mature within three months. 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This custom concept relates to year 2011. We will only use this concept for reporting the 12.31.2013 annual report which includes three years. Starting with year-end 2014 we will use the standard GAAP concept which is the same concept used in the income statement. 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Estimated Litigation Liability, Noncurrent Estimated Litigation Liability, Noncurrent Operating Leases, Future Minimum Payments, Due in Two Years Operating Leases, Future Minimum Payments, Due in Two Years Total Assets Assets Preferred Stock, Liquidation Preference, Value Preferred Stock, Liquidation Preference, Value Foreign exchange contract [Member] Foreign Exchange Contract [Member] Change in valuation allowance for deferred tax assets Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Strategic transformation costs Strategic transformation costs Strategic transformation costs Entity Shell Company Entity Shell Company Operating Lease, Liability Operating Lease, Liability, Total Operating Lease, Liability Requisite service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Pending Litigation [Member] Pending Litigation [Member] Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Variable Rate [Domain] Variable Rate [Domain] Schedule of Future Minimum Operating Lease Non-cancelable Payments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Taxes Payable, Current Accrued Income Taxes, Current Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] (Increase) decrease in accounts receivable Increase (Decrease) in Accounts Receivable Accrued Income Taxes, Noncurrent Accrued Income Taxes, Noncurrent Lessee, Operating Lease, Liability, Payments, Due Year Four Lessee, Operating Lease, Liability, Payments, Due Year Four Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Finance Lease, Liability, Current Finance Lease, Liability, Current Revenue, Remaining Performance Obligation, Amount Revenue, Remaining Performance Obligation, Amount Segment Reporting Segment Reporting Disclosure [Text Block] Supplemental Financial Information Table Supplemental financial information table [Table Text Block] [Table Text Block] for Supplemental financial information table Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] HE charge (credit) HE charge HE charge Unearned Income, Non-Current Long-term Unearned Income Contract with Customer, Liability, Noncurrent Litigation Status [Domain] Litigation Status [Domain] Class of Stock [Domain] Class of Stock [Domain] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Restructuring Reserve, Current Restructuring Reserve, Current Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Capitalized Contract Cost, Amortization Capitalized Contract Cost, Amortization Education Education [Member] Education Goodwill Impairment Loss, Adjustment Goodwill Impairment Loss, Adjustment Goodwill Impairment Loss, Adjustment Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Entity File Number Entity File Number Other financing Proceeds from (Payments for) Other Financing Activities Settled Litigation [Member] Settled Litigation [Member] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Tax Benefit, Goodwill Impairment Loss Tax Benefit, Goodwill Impairment Loss Tax Benefit, Goodwill Impairment Loss Business Combination, Contingent Consideration Arrangements Period Business Combination, Contingent Consideration Arrangements Period Business Combination, Contingent Consideration Arrangements Period when conditional payments are due Cumulative Effect of New Accounting Principle in Period of Adoption Cumulative Effect of New Accounting Principle in Period of Adoption Document Fiscal Period Focus Document Fiscal Period Focus Financial Instruments [Domain] Financial Instruments [Domain] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Restructuring Plan [Axis] Restructuring Plan [Axis] Product and Service [Domain] Product and Service [Domain] Defined Contribution Plan, Increase (Decrease), Cost Defined Contribution Plan, Increase (Decrease), Cost Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Income (loss) from discontinued operations, net of tax Net (loss) income from discontinued operations attributable to Conduent Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Restructuring and 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Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Transferred at Point in Time Transferred at Point in Time [Member] Payments Related to Divestitures, Including Cash Sold Payments Related to Divestitures, Including Cash Sold Payments Related to Divestitures, Including Cash Sold Shares of common stock issued and outstanding (in shares) Common Stock, Shares, Outstanding Operating Leases, Future Minimum Payments Due Operating Leases, Future Minimum Payments Due Shareholders' Equity Stockholders' Equity Note Disclosure [Text Block] Trade Receivables Held-for-sale, Amount Trade Receivables Held-for-sale, Amount Total conversion of preferred stock shares into common stock, initial conversion price per share (in dollars per share) Preferred Stock Initial Conversion Price per Share Preferred Stock Initial Conversion Price per Share Commercial Industries Commercial Industries segment Commercial Industries segment [Member] Commercial Industries segment [Member] Technology, patents and non-compete [Member] Other Intangible Assets [Member] Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Property, Plant, Equipment and Software [Line Items] Property, Plant and Equipment [Line Items] Lessee, Operating Lease, Liability, Payments, Due Lessee, Operating Lease, Liability, Payments, Due Assets And Liabilities, Lessee Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee [Table Text Block] Land, buildings and equipment, net Property, Plant and Equipment [Table Text Block] Accounts receivable, net Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Effect of tax law changes Effective income tax rate reconciliation, effect of tax law changes, percent Effective income tax rate reconciliation, effect of tax law changes, percent - Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax laws. Additional paid-in capital Additional Paid in Capital Skyview Capital LLC and Continuum Global Solutions, LLC v. Conduent Business Services, LLC [Member] Skyview Capital LLC and Continuum Global Solutions, LLC v. Conduent Business Services, LLC [Member] Skyview Capital LLC and Continuum Global Solutions, LLC v. Conduent Business Services, LLC Leasehold Improvements, Gross Leasehold Improvements, Gross SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Other areas Geographical, other countries [Member] Geographical, other countries [Member] Short-term Lease, Cost Short-term Lease, Cost NY MMIS charge (credit) NY MMIS NY MMIS Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Entity Current Reporting Status Entity Current Reporting Status Deferred State Income Tax Expense Deferred State and Local Income Tax Expense (Benefit) Employee Severance [Member] Employee Severance [Member] Continuing Operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Cash Received Proceeds from Stock Options Exercised Net income (loss) from continuing operations attributable to Conduent Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Common Stock [Member] Common Stock [Member] Receivable Sales Receivable [Policy Text Block] 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Long-term Debt from Continuing Operations, Maturities, Repayments of Principal in Year Three Long-term Debt from Continuing Operations, Maturities, Repayments of Principal in Year Three Long-term Debt from Continuing Operations, Maturities, Repayments of Principal in Year Three Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award Other Than Options [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Unearned income Deferred Revenue, Current Operating lease liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Net current period restructuring charges, continuing operations Net current period restructuring charges, continuing operations Net current period restructuring charges, continuing operations Product and Service [Axis] Product and Service [Axis] Operating Lease, Cost Operating Lease, Cost Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Entity Small Business Entity Small Business Entity Filer Category Entity Filer Category Maximum contingent consideration payment Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Continuing Operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Total Deferred Tax Liabilities, Gross Total Liabilities and Equity Liabilities and Equity Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Schedule of Aggregate intrinsic value restricted stock and performance shares compensation awards Aggregate intrinsic value restricted stock and performance shares compensation awards [Table Text Block] Aggregate intrinsic value restricted stock and performance shares compensation awards [Table Text Block] - outstanding awards aggregate intrisic value. Accrued dividends on preferred stock Preferred Stock Dividends and Other Adjustments Health Solutions Plus Health Solutions Plus [Member] Health Solutions Plus [Member] Finance Lease, Interest Expense Finance Lease, Interest Expense Loss Contingencies [Table] Loss Contingencies [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Contract Assets (Unearned Income) Contract with Customer, Asset and Liability [Abstract] Nature of Uncertainty [Axis] Nature of Uncertainty [Axis] Other contingencies letter of credits [Member] Contractual and Corporate Obligations Guarantee [Member] Performance guarantees under certain services contracts, support for certain insurance programs, and support for obligations related to the Brazil tax and labor contingencies, all of which require the guarantor to make payments to a guaranteed party when certain criteria are met. Basis of Consolidation Consolidation, Policy [Policy Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Current State Tax Expense Current State and Local Tax Expense (Benefit) Other (income) expenses, net Other Operating Income (Expense), Net Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Redemption Premium Redemption Premium Carryforward Indefinitely [Member] Carryforward Indefinitely [Member] Carryforward Indefinitely [Member] Operating loss carryforwards Operating Loss Carryforwards Divestiture revenue Divestiture revenue Divestiture revenue Award Type [Axis] Award Type [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Operating Costs and Expenses Costs and Expenses [Abstract] Other Assets, Miscellaneous, Noncurrent Other Assets, Miscellaneous, Noncurrent Line of Credit Facility [Table] Line of Credit Facility [Table] Inducement Payments Inducement Payments [Member] Inducement Payments Geographical [Axis] Geographical [Axis] Retained Earnings [Member] Retained Earnings [Member] Officers and Select Executives [Member] Officers and Select Executives [Member] Officers and Select Executives [Member] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Condensed Financial Information Disclosure [Abstract] Convertible Preferred Stock, Shares Reserved for Future Issuance Convertible Preferred Stock, Shares Reserved for Future Issuance Document Period End Date Document Period End Date Other current assets Other Assets, Current Statement [Table] Statement [Table] Entity Registrant Name Entity Registrant Name Interest paid on short-term and long-term debt Interest Paid, Including Capitalized Interest, Operating and Investing Activities Goodwill and Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Property, Plant and Equipment, Useful Life Property, Plant and Equipment, Useful Life Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Maximum [Member] Maximum [Member] Accounts Receivables, Net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] State taxes, net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Receivables [Abstract] Receivables [Abstract] Lessee, Operating Lease, Liability, Payments, Due Year Three Lessee, Operating Lease, Liability, Payments, Due Year Three Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Value Schedule of Fair Value of Financial Assets and Liabilities Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Proceeds from Divestiture of Businesses, Net of Cash Divested Proceeds from Divestiture of Businesses, Net of Cash Divested Capitalized Contract Cost, Net, Noncurrent Capitalized Contract Cost, Net, Noncurrent Entity Public Float Entity Public Float Capitalized Computer Software, Net Capitalized Computer Software, Net Capitalized Computer Software, Net Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Incentive compensation [Member] Incentive compensation [Member] Incentive compensation [Member] Long-Lived Assets Long-Lived Assets SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Reportable segments, number Number of Reportable Segments Senior Notes due 2024 [Member] Senior Notes due 2024 [Member] Senior Notes due 2024 Segment Adjusted EBITDA Segment Adjusted EBITDA Segment Adjusted EBITDA Restructuring Type [Axis] Restructuring Type [Axis] Range [Domain] Statistical Measurement [Domain] Software - Internal Use and Product Internal Use Software, Policy [Policy Text Block] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Entity [Domain] Entity [Domain] Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options Share-based Payment Arrangement, Exercise of Option, Tax Benefit Customer Relationships [Member] Customer Relationships [Member] Average Maturity of Foreign Exchange Hedging Contracts - within Three and Six Months Average Maturity of Foreign Exchange Hedging Contracts - within Three and Six Months Average Maturity of Foreign Exchange Hedging Contracts - within Three and Six Months Outstanding average forward exchange and purchase option contracts that mature within six months. Conduent Business Services, LLC v. Cognizant Business Service, LLC [Member] Conduent Business Services, LLC v. Cognizant Business Service, LLC [Member] Conduent Business Services, LLC v. Cognizant Business Service, LLC [Member] Interest Income Interest Income Interest Income - includes finance income, as well as other interest income that is included in Other expense, net. Other Other Segments [Member] Other investing, net Payments for (Proceeds from) Other Investing Activities AR Additions charged to bad debt provision Bad debt provision Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). Fair Value [Member] Estimate of Fair Value Measurement [Member] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Finance Lease, Cost Finance Lease, Cost Finance Lease, Cost Other Deferred Tax Liabilities, Other Land, Buildings and Equipment and Equipment on Operating Leases Property, Plant and Equipment, Policy [Policy Text Block] Schedule of Basic And Diluted Earnings [Table] Schedule of Basic And Diluted Earnings [Table] Schedule of Basic And Diluted Earnings [Table] Data Center Consolidation [Member] Data Center Consolidation [Member] Data Center Consolidation [Member] Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, Maturity [Table Text Block] Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Assets Held-for-Sale Assets Held-for-Sale [Policy Text Block] Assets Held-for-Sale Preferred Stock, Par or Stated Value Per Share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Term Loan B due 2023 [Member] Term Loan B due 2023 [Member] Term Loan B due 2023 Lease, Cost, Total Lease, Cost Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Capitalized Contract Cost [Domain] Capitalized Contract Cost [Domain] Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, after Accumulated Amortization Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, after Accumulated Amortization Segment Reporting [Abstract] Segment Reporting [Abstract] Lessee, Operating Lease, Liability, Undiscounted Excess Amount Lessee, Operating Lease, Liability, Undiscounted Excess Amount Repayments of Debt Repayments of Debt Principal Debt Balance Long-term Debt, Parent [Member] Long-term Debt, Parent [Member] Schedule Of Accounts Receivable Sales Schedule Of Accounts Receivable Sales [Table Text Block] Tabular disclosure of Accounts Receivables factored in the period. Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Schedule of Maturities of Long-term Debt Schedule of Maturities of Long-term Debt [Table Text Block] Restructuring and Asset Impairment Charges Restructuring and Related Activities Disclosure [Text Block] Capitalized Costs, Internal Use and Product Software Capitalized Costs, Internal Use and Product Software [Table Text Block] Capitalized Costs, Internal Use and Product Software [Table Text Block] Net Operating Loss Carryforwards, Expire Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration Deferred Tax, Capital Loss Carryforwards to Offset Capital Gain Deferred Tax, Capital Loss Carryforwards to Offset Capital Gain Deferred Tax, Capital Loss Carryforwards to Offset Capital Gain Operating Lease, Weighted Average Discount Rate, Percent Operating Lease, Weighted Average Discount Rate, Percent Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax Additional Pre-tax loss on disposal and adjustment to final sales price Additional Pre-tax loss on disposal and adjustment to final sales price Additional Pre-tax loss on disposal and adjustment to final sales price Comprehensive Income (Loss) Note Comprehensive Income (Loss) Note [Text Block] Aggregate intrinsic value of outstanding non option awards Share-based compensation arrangement by share based payment award equity instrument other than options, nonvested intrinsic value Share-based compensation arrangement by share based payment award equity instrument other than options, nonvested intrinsic value - the intrinsic value of equity-based compensation award not vested. Excludes stock and unit options. Net Contract Assets (Unearned Income) Contract with Customer, Asset, after Allowance for Credit Loss Deferred Federal Income Tax Expense Deferred Federal Income Tax Expense (Benefit) Amortization of Deferred Costs Table Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Shareholder's Equity [Abstract] Shareholder's Equity [Abstract] Shareholder's Equity [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Debt Instrument, Redemption Price, Percentage Debt Instrument, Redemption Price, Percentage Income taxes paid Income Taxes Paid, Net Balance at beginning of period Balance at end of period Restructuring Reserve Adjusted Net Income Available to Common Shareholders, Diluted Adjusted Net Income (Loss) Available to Common Shareholders, Diluted Net income (loss) available to common shareholders after adjusting for 1) the affect of the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions and 2) discontinued operations. State and Local State and Local [Member] State and Local Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Restricted Stock and Performance Shares [Member] Restricted stock and performance shares [Member] Restricted Stock and Performance Shares [Member] Restricted Stock and Performance Shares [Member] - Restricted Stock are shares that an entity has not yet issued because the agreed-upon consideration, such as employee services, has not yet been received. Performance Shares are shares or units awarded to employees for meeting certain performance targets. Unrecognized Compensation Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Government services Government services [Member] Government services [Member] Goodwill, Other Increase (Decrease) Goodwill, Other Increase (Decrease) Additions related to current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Senior Notes [Member] Senior Notes [Member] Operating Lease, Liability, Current Operating Lease, Liability, Current Basic and Diluted Earnings per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Other Deferred Tax Assets, Other Income Taxes Income Tax Disclosure [Text Block] Currency Translation Adjustments, Before Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Building and building equipment [Member] Building [Member] Philippine Peso U.S. Dollar [Member] Philippine Peso U.S. Dollar [Member] Philippine Peso U.S. Dollar [Member] Restructuring Reserve, Reclassification to Operating ROU Assets Restructuring Reserve, Reclassification to Operating ROU Assets Restructuring Reserve, Reclassification to Operating ROU Assets Capitalized Contract Cost [Axis] Capitalized Contract Cost [Axis] Deferred Compensation, Share-based Payments [Member] Deferred Compensation, Share-based Payments [Member] Preferred stock annual dividends Preferred stock annual dividends Preferred stock annual dividends Type of Adoption [Domain] Type of Adoption [Domain] Increase (decrease) in accounts payable and accrued compensation Increase (Decrease) in Accounts Payable and Accrued Liabilities Foreign Exchange Contracts [Line Items] Foreign Exchange Contracts [Line Items] -- None. No documentation exists for this element. -- Human Resource and Learning Services Human Resource Services [Member] Human Resource Services [Member]comprises human resource and workers' compensation Entity Voluntary Filers Entity Voluntary Filers Valuation Allowance [Line Items] Valuation Allowance [Line Items] Cost of additions to land, buildings and equipment Payments to Acquire Property, Plant, and Equipment Proceeds on long-term debt Proceeds from Issuance of Long-term Debt Lessee, Operating Lease, Liability, Payments, Due Year Five Lessee, Operating Lease, Liability, Payments, Due Year Five Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Disposed of by Sale Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Schedule of Income Tax Expense (Benefit) Allocation Schedule of Income Tax Expense (Benefit) Allocation [Table Text Block] Schedule of Income Tax Expense (Benefit) Allocation Conduent Shareholders' Equity [Member] Parent [Member] Loss on Contract Termination Loss on Contract Termination Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Revenue Revenue from Contract with Customer [Text Block] Finance Lease, Weighted Average Remaining Lease Term Finance Lease, Weighted Average Remaining Lease Term Relationship to Entity [Domain] Title of Individual [Domain] Discontinued Operation, Tax Effect of Discontinued Operation Discontinued Operation, Tax Effect of Discontinued Operation Net operating losses and capital loss carryforward Deferred Tax Assets, Operating Loss Carryforwards Other Land, Building, Equipment and Software Other Land, Building, Equipment and Software Other Land, Building, Equipment and Software Fair Value Measurement [Domain] Fair Value Measurement [Domain] Payments to Acquire Businesses, Net of Cash Acquired Payments to Acquire Businesses, Net of Cash Acquired Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Accounts receivable sales Accounts Receivable Sales Accounts receivable factored in the period Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business Combinations [Abstract] Business Combinations [Abstract] Reclassification of currency translation adjustments on divestitures, Before Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Held-for-sale Disposal Group, Held-for-sale, Not Discontinued Operations [Member] Increase (decrease) in restructuring liabilities Increase (Decrease) in Restructuring Reserve Business Acquisition [Axis] Business Acquisition [Axis] Total Financial and Nonfinancial Liabilities, Fair Value Disclosure Restructuring provision Restructuring Charges Facility Closing [Member] Facility Closing [Member] Sales Commissions Sales Commissions [Member] Sales Commissions Consideration transferred for acquisition Business Combination, Consideration Transferred Other operating, net Other Operating Activities, Cash Flow Statement Finance Lease, Liability, Payments, Due Year Three Finance Lease, Liability, Payments, Due Year Three Cost of additions to internal use software Payments to Develop Software Write off of Deferred Debt Issuance Cost Write off of Deferred Debt Issuance Cost Intangibles and goodwill Deferred Tax Liabilities, Goodwill and Intangible Assets Business Acquisition [Line Items] Business Acquisition [Line Items] Finance Lease, Right-of-Use Asset Finance Lease, Right-of-Use Asset Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Total Operating Costs and Expenses Costs and Expenses Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Asset Impairment Charges Asset Impairment Charges Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted Outstanding at January 1 (in dollars per share) Outstanding at December 31 (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Total Long-term Debt Long-term Debt and Lease Obligation Taxes paid for settlement of stock based compensation Payment, Tax Withholding, Share-based Payment Arrangement Contract Assets, Unearned Income and Accounts Receivable Contract Assets, Unearned Income and Accounts Receivable [Table Text Block] [Table Text Block] for Contract Assets, Unearned Income and Accounts Receivable Customer relationships [Member] Customer Lists [Member] Pension Plan [Member] Pension Plan [Member] Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Restructuring Program Activity Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Number of Reporting Units Number of Reporting Units Tolling Tolling [Member] Tolling Earnings per Share Earnings Per Share [Text Block] internal use and product software, amortization internal use and product software, amortization internal use and product software, amortization Loss Contingency, Increase To Damages Sought, Value Loss Contingency, Increase To Damages Sought, Value Loss Contingency, Increase To Damages Sought, Value All Other Currency [Member] All Other Currency [Member] Currency (buy/sell) Finance Lease, Right-of-Use Asset, Amortization Finance Lease, Right-of-Use Asset, Amortization Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Award Type [Domain] Equity Award [Domain] Award Type [Domain] Operating Leases, Future Minimum Payments, Due in Five Years Operating Leases, Future Minimum Payments, Due in Five Years Revolving Credit Facility [Member] Revolving Credit Facility [Member] Finance Lease, Liability, Total Finance Lease, Liability Finance Lease, Liability Currency Translation Adjustments, Net of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Decrease in Unrecognized Tax Benefits is Reasonably Possible Decrease in Unrecognized Tax Benefits is Reasonably Possible Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Goodwill and Other Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Schedule of Long-term Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] Effective Income Tax Rate Effective Income Tax Rate Reconciliation, Percent Segment Depreciation and Amortization Depreciation and Amortization, excluding Amortization of Acquired Intangible Assets Depreciation and Amortization, excluding Amortization of Acquired Intangible Assets Operating Cash Flow From Operating and Finance Lease Operating Cash Flow From Operating and Finance Lease Operating Cash Flow From Operating and Finance Lease: Total base rent of operating leases and interest payment on finance leases Long-term debt Long-term Debt, Fair Value Schedule of Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Total Liabilities Liabilities Lease Costs, Supplemental cash Flow Lease Costs, Supplemental cash Flow [Table Text Block] Lease Costs, Supplemental cash Flow Acquisitions Business Combination Disclosure [Text Block] Foreign rate differential adjusted for U.S. taxation of foreign profits Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent AR Amounts (credited) charged to other income statement accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Nature of Uncertainty [Domain] Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Nature of Uncertainty [Domain] Stock option and incentive plans, net Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Stock options Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Credit Facility Leverage Terms Foreign Subsidiary Credit Facility Leverage Terms Foreign Subsidiary Credit Facility Leverage Terms Foreign Subsidiary Construction in Progress, Gross Construction in Progress, Gross Photo and Parking Photo and Parking [Member] Photo and Parking Awards Other Than Options, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Impairment or Disposal of Long-Lived Assets, Policy Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Beginning Balance Ending Balance Stockholders' Equity Attributable to Parent Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Amortization of Acquired Intangible Assets Amortization of Intangible Assets Increase (decrease) in other current and long-term liabilities Increase (Decrease) in Other Operating Liabilities Total Deferred Tax Assets, Net of Valuation Allowance Land Land Fair Value of Financial Assets and Liabilities Fair Value Disclosures [Text Block] Other Sundry Liabilities, Noncurrent Other Sundry Liabilities, Noncurrent Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Supplementary Financial Information Supplemental Financial Information [Text Block] Supplemental Financial Information is the break out other current and non-current assets and liabilities Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance by Deferred Tax Asset [Axis] Valuation Allowance [Table] Valuation Allowance [Table] Contract assets Contract with Customer, Asset, Net, Current Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets, Gross Land, Buildings, Equipment and Softward [Abstract] Land, Buildings, Equipment and Softward [Abstract] Land, Buildings, Equipment and Softward [Abstract] Preferred stock aggregate fair value Preferred Stock, Value, Issued Allowance for Doubtful Accounts Receivable Accounts Receivable, Allowance for Credit Loss Security Exchange Name Security Exchange Name Total Securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Convertible Preferred Stock, Terms of Conversion Convertible Preferred Stock, Terms of Conversion Depreciation Depreciation Litigation Case [Axis] Litigation Case [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Goodwill, Portion Currently Not Tax Deductible Goodwill, Portion Currently Not Tax Deductible Goodwill, Portion Currently Not Tax Deductible Total Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Equity Component [Domain] Equity Component [Domain] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Hedging Relationship [Domain] Hedging Relationship [Domain] Document Transition Report Document Transition Report Reclassification of divested benefit plans and other Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Loss Contingency, New Claims Filed, Number Loss Contingency, New Claims Filed, Number Net change in income tax assets and liabilities Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Mexican Peso U. S. Dollar [Member] Mexican Peso U. S. Dollar [Member] Mexican Peso U. S. Dollar [Member] Subtotal Deferred Tax Assets, Gross Goodwill impairment Goodwill, Impairment Loss Goodwill, Impairment Loss Goodwill, Impairment Loss Long-term Debt from Continuing Operations, Maturities, Repayments of Principal after Year Five Long-term Debt from Continuing Operations, Maturities, Repayments of Principal after Year Five Long-term Debt from Continuing Operations, Maturities, Repayments of Principal after Year Five Long-term Debt from Continuing Operations, Maturities, Repayments of Principal Debt in Year Two Long-term Debt from Continuing Operations, Maturities, Repayments of Principal Debt in Year Two Long-term Debt from Continuing Operations, Maturities, Repayments of Principal Debt in Year Two Separation costs Separation costs One-time/non-recurring incremental direct costs related to the separation of businesses or a strategic cost project. These costs should not be part of the entity's on-going cost base, of the resulting businesses, after their separation. Deferred compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Allowance for Doubtful Accounts Provision for Other Losses