Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Securities and Shareholder Matters On March 6, 2023, a complaint captioned Palm Bay Police and Firefighters’ Pension Fund v. Fidelity National Information Services, Inc., et al., was filed in the United States District Court for the Middle District of Florida by a shareholder of the Company seeking damages on behalf of a class consisting of all persons who purchased the Company’s common stock between February 9, 2021, and February 10, 2023. This action has been consolidated with a related action that seeks damages on behalf of a class consisting of all persons who purchased the Company’s common stock between May 7, 2020, and February 10, 2023, and the consolidated case is now captioned In re Fidelity National Information Services, Inc. Securities Litigation. This putative class action, which names the Company and certain of its current and former officers as defendants, seeks damages for alleged violations of federal securities laws in connection with our disclosures relating to our Merchant Solutions segment, including with respect to Worldpay’s valuation, integration, and synergies. A lead plaintiff has been appointed, and a consolidated amended complaint is due on August 2, 2023. On April 27, 2023, a shareholder derivative action captioned Portia McCollum, derivatively on behalf of Fidelity National Information Services, Inc. v. Gary Norcross et al., was filed in the same court by a shareholder of the Company. Plaintiff dismissed the suit without prejudice and sent a demand pursuant to Georgia Code § 14-2-742. Another putative stockholder, City of Hialeah Employees’ Retirement System, sent a similar demand. The demands claim that FIS officers and directors violated federal securities laws and breached fiduciary duties in connection with Worldpay’s valuation, integration, and synergies, and they demand that the Board investigate and commence legal proceedings against officers and directors in connection with the purported wrongdoing. While we believe the cases and demands are without merit, no assurance can be given as to their ultimate outcome. We intend to contest them vigorously. Brazilian Tax Authorities Claims In 2004, Proservvi Empreendimentos e Servicos, Ltda., the predecessor to Fidelity National Servicos de Tratamento de Documentos e Informatica Ltda. ("Servicos"), a subsidiary of Fidelity National Participacoes Ltda., our former item processing and remittance services operation in Brazil, acquired certain assets and employees and leased certain facilities from the Transpev Group ("Transpev") in Brazil. Transpev's remaining assets were later acquired by Prosegur, an unrelated third party. When Transpev discontinued its operations after the asset sale to Prosegur, it had unpaid federal taxes and social contributions owing to the Brazilian tax authorities. The Brazilian tax authorities brought a claim against Transpev and, beginning in 2012, brought claims against Prosegur and Servicos on the grounds that Prosegur and Servicos were successors in interest to Transpev. To date, the Brazilian tax authorities filed 14 claims against Servicos, of which 13 are still active, asserting potential tax liabilities of approximately $13 million. There are potentially 24 additional claims against Transpev/Prosegur for which Servicos is named as a co-defendant or may be named but for which Servicos has not yet been served. These additional claims amount to approximately $36 million, making the total potential exposure for all 38 claims approximately $49 million. We do not believe a liability for these 38 total claims is probable and, therefore, have not recorded a liability for any of these claims. Tax Receivable Agreement The Company assumed in the Worldpay acquisition a Tax Receivable Agreement ("TRA") under which the Company agreed to make payments to Fifth Third Bank ("Fifth Third") of 85% of the federal, state, local and foreign income tax benefits realized by the Company as a result of certain tax deductions. In December 2019, the Company entered into a Tax Receivable Purchase Addendum (the "Amendment") that provides written call and put options (collectively "the options") to terminate certain estimated obligations under the TRA in exchange for fixed cash payments. The remaining TRA obligations not subject to the Amendment are based on the cash savings realized by the Company by comparing the actual income tax liability of the Company to the amount of such taxes the Company would have been required to pay had there been no deductions related to the tax attributes. Under the TRA, in certain specified circumstances, such as certain changes of control, the Company may be required to make payments in excess of such cash savings. Obligations recorded in our consolidated financial statements pursuant to the TRA are based on estimates of future deductions and future tax rates and, in the case of the obligations subject to the Amendment, reflect management's expectation that the options will be exercised. In January 2023, the Company exercised its third call option pursuant to the Amendment, which results in fixed cash payments to Fifth Third of $138 million. The timing and/or amount of aggregate payments due under the TRA may vary based on a number of factors, including the exercise of options, the amount and timing of taxable income the Company generates in the future and the tax rate then applicable, the use of loss carryforwards and amortizable basis. Each reporting period, the Company evaluates the assumptions underlying the TRA obligations. The consolidated balance sheets as of June 30, 2023, and December 31, 2022, include a total liability of $138 million and $266 million, respectively, relating to the TRA. Chargeback Liability Through services offered in our Merchant Solutions segment, the Company is exposed to potential losses from merchant-related chargebacks. A chargeback occurs when a dispute between a cardholder and a merchant, including a claim for non-delivery of the product or service by the merchant, is not resolved in favor of the merchant and the transaction is charged back to the merchant resulting in a refund of the purchase price to the cardholder. If the Company is unable to collect this chargeback amount from the merchant due to closure, bankruptcy or other reasons, the Company bears the loss for the refund paid to the cardholder. The risk of chargebacks is typically greater for those merchants that promise future delivery of goods and services rather than delivering goods or rendering services at the time of payment. Indemnifications and Warranties The Company generally indemnifies its clients, subject to certain limitations and exceptions, against damages and costs resulting from claims of patent, copyright, or trademark infringement associated solely with its customers' use of the Company's software applications or services. Historically, the Company has not made any material payments under such indemnifications but continues to monitor the conditions that are subject to the indemnifications to identify whether it is probable that a loss has occurred, in which case it would recognize any such losses when they are estimable. In addition, the Company warrants to customers that its software operates substantially in accordance with the software specifications. Historically, no material costs have been incurred related to software warranties, and no accruals for warranty costs have been made.