Contingencies and Litigation - Litigation Against the Company (Details) $ in Millions			1 Months Ended	3 Months Ended
	Feb. 03, 2020 USD ($)	Apr. 12, 2017 USD ($) claim	Apr. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Loss Contingencies [Line Items]
Insurance recoveries					$ 38
Surety Bond
Loss Contingencies [Line Items]
Maximum exposure, undiscounted				$ 631
Letters of Credit Issued to Secured Contractual Obligations
Loss Contingencies [Line Items]
Maximum exposure, undiscounted				91
Cost of Goods and Services Sold
Loss Contingencies [Line Items]
litigation reserves				17
Litigation Settlement, Expense
Loss Contingencies [Line Items]
Insurance recoveries					24
litigation reserves				$ 26
Selling, General and Administrative Expenses
Loss Contingencies [Line Items]
Insurance recoveries					$ 14
Subsequent Event
Loss Contingencies [Line Items]
reciprocal litigation payments			$ 6
Skyview Capital LLC and Continuum Global Solutions, LLC v. Conduent Business Services, LLC | Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, damages sought	$ 23
Conduent Business Services, LLC v. Cognizant Business Service, LLC | Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, damages sought		$ 47
Gain contingency, damages sought		$ 150
Number of counterclaims for breach of contract | claim		2
Loss contingency, damages sought, termination fees		$ 25
Loss contingency, additional damages sought		$ 89