Fiserv (FI) 10-Q 23 Oct 24 2024 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2024	Oct. 18, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	1-38962
Entity Registrant Name	FISERV, INC.
Entity Incorporation, State or Country Code	WI
Entity Tax Identification Number	39-1506125
Entity Address, Address Line One	600 N. Vel R. Phillips Avenue
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Address, Postal Zip Code	53203
City Area Code	262
Local Phone Number	879-5000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		568,918,735
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000798354
Current Fiscal Year End Date	--12-31
Common Stock, par value $0.01 per share
Document Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	FI
Security Exchange Name	NYSE
1.125% Senior Notes due 2027
Document Information [Line Items]
Title of 12(b) Security	1.125% Senior Notes due 2027
Trading Symbol	FI27
Security Exchange Name	NYSE
1.625% Senior Notes due 2030
Document Information [Line Items]
Title of 12(b) Security	1.625% Senior Notes due 2030
Trading Symbol	FI30
Security Exchange Name	NYSE
2.250% Senior Notes due 2025
Document Information [Line Items]
Title of 12(b) Security	2.250% Senior Notes due 2025
Trading Symbol	FI25
Security Exchange Name	NYSE
3.000% Senior Notes due 2031
Document Information [Line Items]
Title of 12(b) Security	3.000% Senior Notes due 2031
Trading Symbol	FI31
Security Exchange Name	NYSE
4.500% Senior Notes Due 2031
Document Information [Line Items]
Title of 12(b) Security	4.500% Senior Notes due 2031
Trading Symbol	FI31A
Security Exchange Name	NYSE

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue		$ 5,215	$ 4,873	$ 15,205	$ 14,176
Selling, general and administrative		1,606	1,652	5,000	4,952
Net gain on sale of businesses and other assets		0	(176)	0	(172)
Total expenses		3,613	3,370	10,994	10,608
Operating income		1,602	1,503	4,211	3,568
Interest expense, net		(326)	(258)	(872)	(692)
Other expense, net		(5)	(35)	(17)	(81)
Income before income taxes and loss from investments in unconsolidated affiliates		1,271	1,210	3,322	2,795
Income tax provision		(74)	(239)	(448)	(544)
Loss from investments in unconsolidated affiliates		(626)	(2)	(642)	(11)
Net income		571	969	2,232	2,240
Less: net income attributable to noncontrolling interests and redeemable noncontrolling interest		7	17	39	42
Net income attributable to Fiserv, Inc.		$ 564	$ 952	$ 2,193	$ 2,198
Net income attributable to Fiserv, Inc. per share:
Basic (in dollars per share)		$ 0.98	$ 1.57	$ 3.76	$ 3.57
Diluted (in dollars per share)		$ 0.98	$ 1.56	$ 3.74	$ 3.54
Shares used in computing net income attributable to Fiserv, Inc. per share:
Basic (in shares)		573.7	606.2	582.5	616.2
Diluted (in shares)		576.9	610.3	585.7	620.3
Processing and services
Revenue	[1]	$ 4,237	$ 4,008	$ 12,377	$ 11,605
Cost of goods sold and services		1,346	1,311	4,043	4,067
Product
Revenue		978	865	2,828	2,571
Cost of goods sold and services		$ 661	$ 583	$ 1,951	$ 1,761
[1] Includes processing and other fees charged to related party investments accounted for under the equity method of $35 million and $45 million for the three months ended September 30, 2024 and 2023, respectively, and $111 million and $136 million for the nine months ended September 30, 2024 and 2023, respectively (see Note 19).

Consolidated Statements of In_2

Consolidated Statements of Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Processing, administrative, and other fees	$ 5,215	$ 4,873	$ 15,205	$ 14,176
Equity investments | Related Party Fees
Processing, administrative, and other fees	$ 35	$ 45	$ 111	$ 136

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net income	$ 571	$ 969	$ 2,232	$ 2,240
Other comprehensive (loss) income:
Fair market value adjustment on derivatives	(7)	5	(5)	14
Tax impacts of derivatives	1	(3)	(1)	(7)
Unrealized (loss) gain on defined benefit pension plans	0	0	(105)	3
Tax impacts of defined benefit pension plans	0	0	26	(1)
Foreign currency translation	210	(261)	(110)	(11)
Reclassification adjustment for accumulated foreign currency translation impacts from the sale of foreign entities included in net gain on sale of businesses and other assets	0	10	0	10
Tax impacts of foreign currency translation	56	(42)	17	(2)
Total other comprehensive (loss) income	262	(283)	(170)	21
Comprehensive income	833	686	2,062	2,261
Less: net income attributable to noncontrolling interests and redeemable noncontrolling interest	7	17	39	42
Less: other comprehensive income (loss) attributable to noncontrolling interests	21	(17)	3	(2)
Comprehensive income attributable to Fiserv, Inc.	805	686	2,020	2,221
Foreign currency forward exchange contracts
Other comprehensive (loss) income:
Reclassification adjustment for net realized (gains) losses on cash flow hedges	(1)	4	(3)	4
Treasury Lock
Other comprehensive (loss) income:
Reclassification adjustment for net realized (gains) losses on cash flow hedges	$ 3	$ 4	$ 11	$ 11

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Assets
Cash and cash equivalents	$ 1,228	$ 1,204
Trade accounts receivable, less allowance for doubtful accounts	3,714	3,582
Prepaid expenses and other current assets	2,749	2,344
Settlement assets	17,434	27,681
Total current assets	25,125	34,811
Property and equipment, net	2,377	2,161
Intangible assets, net	10,322	11,210
Goodwill	37,133	37,205
Contract costs, net	985	968
Investments in unconsolidated affiliates	1,585	2,262
Other long-term assets	2,265	2,273
Total assets	79,792	90,890
Liabilities and Equity
Accounts payable and other current liabilities	4,161	4,355
Short-term and current maturities of long-term debt	1,200	755
Contract liabilities	770	761
Settlement obligations	17,434	27,681
Total current liabilities	23,565	33,552
Long-term debt	24,085	22,363
Deferred income taxes	2,526	3,078
Long-term contract liabilities	255	250
Other long-term liabilities	958	978
Total liabilities	51,389	60,221
Commitments and Contingencies (see Note 18)
Redeemable Noncontrolling Interest	0	161
Fiserv, Inc. Shareholders’ Equity:
Preferred stock, no par value: 25 million shares authorized; none issued	0	0
Common stock, $0.01 par value: 1,800 million shares authorized; 784 million shares issued	8	8
Additional paid-in capital	23,003	23,103
Accumulated other comprehensive loss	(956)	(783)
Retained earnings	22,637	20,444
Treasury stock, at cost, 214 million and 190 million shares, respectively	(16,941)	(12,915)
Total Fiserv, Inc. shareholders’ equity	27,751	29,857
Noncontrolling interests	652	651
Total equity	28,403	30,508
Total liabilities and equity	79,792	90,890
Customer relationships, net
Assets
Intangible assets, net	6,218	7,075
Other intangible assets, net
Assets
Intangible assets, net	$ 4,104	$ 4,135

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2024	Dec. 31, 2023
Fiserv, Inc. Shareholders’ Equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	25,000,000	25,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,800,000,000	1,800,000,000
Common stock, shares issued (in shares)	784,000,000	784,000,000
Treasury stock (in shares)	214,000,000	190,000,000

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income	$ 2,232	$ 2,240
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and other amortization	1,248	1,093
Amortization of acquisition-related intangible assets	1,089	1,261
Amortization of financing costs and debt discounts	33	30
Share-based compensation	273	275
Deferred income taxes	(539)	(344)
Net gain on sale of businesses and other assets	0	(172)
Loss from investments in unconsolidated affiliates	642	11
Distributions from unconsolidated affiliates	29	42
Non-cash impairment charges	14	0
Other operating activities	79	(2)
Changes in assets and liabilities, net of effects from acquisitions and dispositions:
Trade accounts receivable	(136)	119
Prepaid expenses and other assets	(503)	(506)
Contract costs	(189)	(180)
Accounts payable and other liabilities	134	(303)
Contract liabilities	4	3
Net cash provided by operating activities	4,410	3,567
Cash flows from investing activities:
Capital expenditures, including capitalized software and other intangibles	(1,170)	(1,034)
Net proceeds from sale of businesses and other assets	0	232
Merchant cash advances, net	(645)	0
Distributions from unconsolidated affiliates	59	110
Purchases of investments	(37)	(15)
Proceeds from sale of investments	53	0
Other investing activities	0	(3)
Net cash used in investing activities	(1,740)	(710)
Cash flows from financing activities:
Debt proceeds	6,141	5,188
Debt repayments	(4,665)	(1,652)
Net borrowings from (repayments of) commercial paper and short-term borrowings	345	(2,032)
Payments of debt financing costs	(28)	(38)
Proceeds from issuance of treasury stock	79	68
Purchases of treasury stock, including employee shares withheld for tax obligations	(4,491)	(3,790)
Settlement activity, net	487	(630)
Distributions paid to noncontrolling interests and redeemable noncontrolling interest	(48)	(22)
Payment to acquire noncontrolling interest of consolidated subsidiary	0	(56)
Payments of acquisition-related contingent consideration	(3)	(33)
Other financing activities	(2)	(39)
Net cash used in financing activities	(2,185)	(3,036)
Effect of exchange rate changes on cash and cash equivalents	25	(8)
Net change in cash and cash equivalents	510	(187)
Cash and cash equivalents, beginning balance	2,963	3,192
Cash and cash equivalents, ending balance	$ 3,473	$ 3,005

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation The consolidated financial statements for the three and nine months ended September 30, 2024 and 2023 are unaudited. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial statements have been included. Such adjustments consisted of normal recurring items. Interim results are not necessarily indicative of results for a full year. The consolidated financial statements and accompanying notes are presented as permitted by Form 10-Q and do not contain certain information included in the annual consolidated financial statements and accompanying notes of Fiserv, Inc. (the “Company”). These interim consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. Segment Realignment Effective in the first quarter of 2024, the Company realigned its reportable segments to correspond with changes in its business designed to further enhance operational performance in the delivery of its integrated portfolio of products and solutions to its financial institution clients (the “Segment Realignment”). The Company’s new reportable segments are the Merchant Solutions (“Merchant”) segment and the Financial Solutions (“Financial”) segment. Segment results for the three and nine months ended September 30, 2023 have been recast to reflect the Segment Realignment. See Note 20 for additional information. Principles of Consolidation The consolidated financial statements include the accounts of Fiserv, Inc. and its subsidiaries in which the Company holds a majority controlling financial interest. All intercompany transactions and balances between the Company and its subsidiaries have been eliminated in consolidation. Control is typically established when ownership and voting interests in an entity are greater than 50%. Investments in which the Company has significant influence but not control are accounted for using the equity method of accounting, for which the Company’s share of net income or loss is reported within loss from investments in unconsolidated affiliates, and the related tax expense or benefit is reported within the income tax provision in the consolidated statements of income. Significant influence over an affiliate’s operations generally coincides with an ownership interest of between 20% and 50%; however, for partnerships and limited liability companies, an ownership interest of between 3% and 50% or board of director representation may also constitute significant influence. The Company maintains a majority controlling financial interest in certain entities, mostly related to consolidated merchant alliances (see Note 19). Noncontrolling interests represent the minority shareholders’ share of the net income or loss and equity in consolidated subsidiaries. The Company’s noncontrolling interests presented in the consolidated statements of income include net income attributable to noncontrolling interests and redeemable noncontrolling interest. Noncontrolling interests are presented as a component of equity in the consolidated balance sheets. Noncontrolling interests that are redeemable upon the occurrence of an event that is not solely within the Company’s control are presented outside of equity and are carried at their estimated redemption value if it exceeds the initial carrying value of the redeemable interest (see Note 11). Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S.”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from those estimates. Cash and Cash Equivalents Cash and cash equivalents consist of cash and investments with original maturities of 90 days or less and are stated at cost in the consolidated balance sheets, which approximates market value. Cash and cash equivalents that are restricted from use due to regulatory or other requirements are included in other long-term assets in the consolidated balance sheets. Cash and cash equivalents held on behalf of merchants and other payees are included in settlement assets in the consolidated balance sheets. The changes in settlement cash and cash equivalents are included in settlement activity, net within cash flows from financing activities in the consolidated statements of cash flows. The following table provides a reconciliation between cash and cash equivalents on the consolidated balance sheets and the consolidated statements of cash flows: (In millions) September 30, 2024 December 31, 2023 September 30, 2023 Cash and cash equivalents on the consolidated balance sheets $ 1,228 $ 1,204 $ 1,349 Cash and cash equivalents included in settlement assets 2,243 1,756 1,653 Other restricted cash 2 3 3 Total cash and cash equivalents on the consolidated statements of cash flows $ 3,473 $ 2,963 $ 3,005 Allowance for Doubtful Accounts The Company analyzes the collectability of trade accounts receivable by considering historical bad debts and issued client credits, client creditworthiness, current economic trends, changes in client payment terms and collection trends when evaluating the adequacy of the allowance for doubtful accounts. Any change in the assumptions used in analyzing a specific account receivable may result in an additional allowance for doubtful accounts being recognized in the period in which the change occurs. The allowance for doubtful accounts was $72 million and $86 million at September 30, 2024 and December 31, 2023, respectively. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following: (In millions) September 30, 2024 December 31, 2023 Prepaid maintenance, postage and insurance $ 235 $ 187 Other prepaid expenses 228 236 Total prepaid expenses (1) 463 423 Income tax receivables (2) 113 534 Clover Capital cash advances, net 313 269 Settlement advance cash payments 1,082 381 Other current assets 778 737 Total other current assets 2,286 1,921 Total prepaid expenses and other current assets $ 2,749 $ 2,344 (1) Prepaid expenses represent advance payments for goods and services to be consumed in the future. (2) Includes receivables associated with transferable federal tax credits (see Note 15). The Company offers merchants advance access to capital through its Clover Capital program. Under this program, merchants sell fixed amounts of their future credit card receivables to the Company in exchange for an up-front purchase price payment. Future credit card receivables purchased by the Company under the Clover Capital program were $326 million and $281 million at September 30, 2024 and December 31, 2023, respectively. The Company maintained a reserve of $13 million and $12 million at September 30, 2024 and December 31, 2023, respectively, based on an estimate of uncollectible amounts. The Company also offers merchants within its international operations advance access to capital by providing them the opportunity to receive settlement cash payments in advance in exchange for their receivables from card issuers, including when the cardholders have elected to pay over time in installments. The Company maintains various short-term lines of credit with foreign banks and alliance partners to fund such anticipated settlement activity (see Note 10). These local currency denominated arrangements are primarily associated with the Company’s operations in Latin America, the most significant of which are denominated in Argentine Peso and Brazilian Real. The changes in the Clover Capital and settlement advance cash programs are included in merchant cash advances, net within cash flows from investing activities in the consolidated statements of cash flows. Settlement Assets and Obligations Settlement assets and obligations represent intermediary balances arising from the settlement process, which involves the transfer of funds among card issuers, payment networks, processors, merchants and consumers, and collateral amounts held to manage merchant credit risk, primarily associated with the Company’s merchant acquiring services. As a processor, the Company facilitates the clearing and settlement activity for the merchant and records settlement assets and obligations upon processing a payment transaction. Settlement assets represent cash received or amounts receivable from agents, payment networks, bank partners, merchants or direct consumers. Settlement obligations represent amounts payable to merchants and payees. Certain merchant settlement assets (included within settlement receivables) that relate to settlement obligations are held by partner banks to which the Company does not have legal ownership, but which the Company has the right to use, to satisfy the related settlement obligations. The Company records settlement obligations for amounts payable to merchants and for outstanding payment instruments issued to payees that have not yet been presented for settlement. Allowance for Merchant Credit Losses With respect to the Company’s merchant acquiring business, the Company’s merchant customers have the legal obligation to refund any charges properly reversed by the cardholder. However, in the event the Company is not able to collect the refunded amounts from the merchants, the Company may be liable for the reversed charges. The Company’s risk in this area primarily relates to situations where a cardholder has purchased goods or services to be delivered in the future. The Company requires cash deposits, guarantees, letters of credit or other types of collateral from certain merchants to mitigate this risk. Collateral held by the Company, or held by partner banks for the Company’s benefit, is classified within settlement assets, and the obligation to repay the collateral is classified within settlement obligations in the consolidated balance sheets. The Company also utilizes a number of systems and procedures to manage merchant credit risk. Despite these efforts, the Company experiences losses due to merchant defaults. The aggregate merchant credit loss expense, recognized by the Company within cost of processing and services in the consolidated statements of income, was $24 million and $25 million for the three months ended September 30, 2024 and 2023, respectively, and $77 million and $62 million for the nine months ended September 30, 2024 and 2023, respectively. The Company maintains an allowance for merchant credit losses that are expected to exceed the amount of merchant collateral. The amount of merchant collateral available to the Company was $666 million and $690 million at September 30, 2024 and December 31, 2023, respectively. The allowance includes estimated losses from anticipated chargebacks and fraud events that have been incurred on merchants’ payment transactions that have been processed but not yet reported to the Company, which is recorded within accounts payable and other current liabilities in the consolidated balance sheets, as well as estimated losses on refunded amounts to cardholders that have not yet been collected from the merchants, which is recorded within prepaid expenses and other current assets in the consolidated balance sheets. The allowance is based primarily on the Company’s historical experience of credit losses and other factors such as changes in economic conditions or increases in merchant fraud. The aggregate merchant credit loss allowance was $38 million and $36 million at September 30, 2024 and December 31, 2023, respectively. Goodwill Goodwill represents the excess of purchase price over the fair value of identifiable assets acquired and liabilities assumed in a business combination. The Company evaluates goodwill for impairment on an annual basis, or more frequently if circumstances indicate possible impairment. Goodwill is tested for impairment at a reporting unit level, which is one level below the Company’s operating segments. Th e Company’s most recent annual impairment assessment of its reporting units in the fourth quarter of 2023 determined that its goodwill was not impaired as the estimated fair values exceeded the carrying values. However, it is reasonably possible that future developments related to the interest or currency exchange rate environments; a shift in strategic initiatives; a deterioration in financial performance within a particular reporting unit; or significant changes in the composition of, or assumptions used in, the quantitative test for certain of the Company’s reporting units (such as an increase in risk-adjusted discount rates) could have a future material impact on one or more of the estimates and assumptions used to evaluate goodwill impairment. Additionally, a significant change in a merchant alliance business relationship or operating performance could result in a material goodwill impairment charge. In connection with the Segment Realignment, the Company performed an interim goodwill impairment assessment in the first quarter of 2024 for the impacted reporting units, and determined that its goodwill was not impaired based on an assessment of various qualitative factors. Examples of qualitative factors that the Company assesses include its share price, its financial performance, market and competitive factors in its industry and other events specific to its reporting units. There is no accumulated goodwill impairment for the Company through September 30, 2024. Foreign Currency The U.S. dollar is the functional currency of the Company’s U.S.-based and certain foreign-based businesses. Where the functional currency differs from the U.S. dollar, assets and liabilities are translated into U.S. dollars at the exchange rates in effect at the balance sheet date. Revenue and expenses are translated at the average exchange rates during the reporting period. Gains and losses from foreign currency translation are recorded as a separate component of accumulated other comprehensive loss. Gains and losses from foreign currency transactions are included in determining net income for the reporting period. Financial statements of subsidiaries located in highly inflationary economies outside of the U.S. are remeasured into U.S. dollars, and the foreign currency gains and losses from the remeasurement of monetary assets and liabilities are reflected in the consolidated statements of income, rather than as foreign currency translation within accumulated other comprehensive loss in the consolidated balance sheets. The remeasurement of monetary assets and liabilities in highly inflationary economies, including Argentina, resulted in foreign currency exchange losses of $22 million and $38 million for the three months ended September 30, 2024 and 2023, respectively, and $75 million and $88 million for the nine months ended September 30, 2024 and 2023, respectively, which is included within other expense, net in the consolidated statements of income. To reduce exposure to changes in the value of the Company’s net investments in certain of its foreign currency-denominated subsidiaries due to changes in foreign currency exchange rates, the Company uses fixed-to-fixed cross-currency rate swap contracts and foreign currency-denominated debt as economic hedges of its net investments in such foreign currency-denominated subsidiaries. Foreign currency transaction gains or losses on the qualifying net investment hedge instruments are recorded as foreign currency translation, net of tax, within other comprehensive income (loss) in the consolidated statements of comprehensive income and will remain in accumulated other comprehensive loss within the consolidated balance sheets until the sale or complete liquidation of the underlying foreign currency-denominated subsidiaries. Derivatives Derivatives are entered into for periods consistent with related underlying exposures and are recorded in the consolidated balance sheets as either an asset or liability measured at fair value. If the derivative is designated as a cash flow hedge, changes in the fair value of the derivative are recorded as a component of accumulated other comprehensive loss and recognized in the consolidated statements of income when the hedged item affects earnings. If the derivative is designated as a net investment hedge, changes in the fair value of the derivative, net of tax, are recorded in the foreign currency translation component of other comprehensive income (loss) until the sale or complete liquidation of the underlying net investment. If the derivative is designated as a fair value hedge, changes in the fair value of the derivative are recorded in the same line item as the changes in the fair value of the hedged item and recognized in the consolidated statements of income. To the extent a derivative is not designated as a hedge, changes in fair value are recognized in the consolidated statements of income. The Company’s policy is to enter into derivatives with creditworthy institutions and not to enter into such derivatives for speculative purposes. Defined Benefit Pension Plans The Company maintains frozen noncontributory defined benefit pension plans covering certain employees in Europe and the U.S. Effective September 30, 2023, the Company terminated its United Kingdom (“U.K.”) and U.S. defined benefit pension plans. In March 2024, the Company entered into a group annuity insurance contract to provide for the administration of future payments to eligible plan participants of the terminated U.K. plan. In connection with the buy-in of this insurance policy, the plan’s projected benefit obligation was remeasured to the value of the group annuity insurance contract, resulting in an unrecognized loss, net of tax, of approximately $63 million recorded in accumulated other comprehensive loss within the consolidated balance sheet. Upon the settlement of the terminated plans, which is expected to be completed in the fourth quarter of 2024, the Company will fund an estimated plan termination liability shortfall for the U.S. defined benefit pension plans of $20 million and expects to recognize a net non-cash pre-tax pension settlement charge for the terminated U.S. and U.K. plans of approximately $140 million, which also includes the recognition of remaining net actuarial unrecognized losses recorded within accumulated other comprehensive loss. The amount of accrued vested benefits to be received by participants will not be impacted. Interest Expense, Net Interest expense, net consists of interest expense primarily associated with the Company’s outstanding borrowings and finance lease obligations, as well as interest income primarily associated with the Company’s investment securities. Interest expense, net consisted of the following: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Interest expense $ (339) $ (268) $ (904) $ (715) Interest income 13 10 32 23 Interest expense, net $ (326) $ (258) $ (872) $ (692)

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2024
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Adopted Accounting Pronouncements In 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2022-03, Fair Value Measurement (Topic 820) : Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions (“ASU 2022-03”), which clarifies the guidance in Accounting Standards Codification (“ASC”) Topic 820, Fair Value Measurement (“Topic 820”), when measuring the fair value of an equity security subject to contractual restrictions that prohibit the sale of an equity security and introduces new disclosure requirements for equity securities subject to contractual sale restrictions that are measured at fair value in accordance with ASC Topic 820. For public entities, ASU 2022-03 is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. The provisions within ASU 2022-03 are to be applied prospectively with any adjustments from the adoption recognized in earnings and disclosed on the date of adoption. The Company adopted ASU 2022-03 effective January 1, 2024, and the adoption did not have a material impact on the Company’s consolidated financial statements or disclosures for the nine months ended September 30, 2024. Recently Issued Accounting Pronouncements In 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which enhances and expands the current annual and interim requirements on segment information disclosures. Under the new disclosure requirements, entities will be required to disclose, on an annual and interim basis: significant segment expense categories and amounts for each reportable segment that are included in the reported measure of segment profit or loss and regularly provided to the chief operating decision maker (“CODM”); an aggregate amount and qualitative description of other segment items included in each reported measure of segment profit or loss for each reportable segment; measures of a segment’s profit or loss that are used by the CODM to assess segment performance and decide how to allocate resources; and disclosure of the title and position of the individual or the name of the group identified as the CODM. For public entities, the provisions within ASU 2023-07 are to be applied retrospectively for all comparative periods and are effective for fiscal years beginning after December 15, 2023, and for interim periods of fiscal years beginning after December 15, 2024. The Company is currently assessing its annual financial statement segment information disclosures in connection with the adoption of ASU 2023-07, effective for the year ending December 31, 2024. In 2023, the FASB issued ASU No. 2023-09 , Income Taxes (Topic 740) - Improvement to Income Tax Disclosures (“ASU 2023-09” ), which establishes new income tax disclosure requirements in addition to modifying and eliminating certain existing requirements. ASU 2023-09 requires entities to consistently categorize and provide greater disaggregation of information within the income tax reconciliation to enable users of financial statements to understand the nature and magnitude of factors contributing to the difference between the effective and statutory tax rates. For public entities, the provisions within ASU 2023-09 are effective for fiscal years beginning after December 15, 2024, and for interim periods of fiscal years beginning after December 15, 2025. The Company is currently assessing the impact the adoption of ASU 2023-09 will have on its consolidated financial statement disclosures.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition The Company generates revenue from the delivery of processing, service and product solutions. Revenue is measured based on consideration specified in a contract with a customer, and excludes any amounts collected on behalf of third parties. The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product or service to a customer which may be at a point in time or over time. Disaggregation of Revenue The Company’s operations are comprised of the Merchant and the Financial reportable segments. Additional information regarding the Company’s business segments is included in Note 20. The table below presents the Company’s revenue disaggregated by business line, including a reconciliation with its reportable segments. The Company’s disaggregation of revenue for the three and nine months ended September 30, 2023 has been recast to reflect the Segment Realignment. The Company serves its global client base by working among its geographic teams across various regions, including the U.S. and Canada; Europe, Middle East and Africa (“EMEA”); Latin America (“LATAM”); and Asia Pacific (“APAC”). The majority of the Company’s revenue is earned domestically, with revenue generated within its EMEA, LATAM and APAC regions comprising approximately 15% of total revenue for each of the three months ended September 30, 2024 and 2023, and 15% and 14% of total revenue for the nine months ended September 30, 2024 and 2023, respectively. (In millions) Three Months Ended September 30, Nine Months Ended September 30, Revenue by Business Line 2024 2023 2024 2023 Small Business $ 1,627 $ 1,492 $ 4,719 $ 4,201 Enterprise 558 478 1,563 1,410 Processing 284 289 850 850 Total Merchant segment revenue $ 2,469 $ 2,259 $ 7,132 $ 6,461 Digital Payments $ 987 $ 940 $ 2,894 $ 2,724 Issuing 789 756 2,316 2,217 Banking 636 606 1,866 1,829 Total Financial segment revenue $ 2,412 $ 2,302 $ 7,076 $ 6,770 Corporate and Other $ 334 $ 312 $ 997 $ 945 Total Revenue $ 5,215 $ 4,873 $ 15,205 $ 14,176 Contract Balances The following table provides information about contract assets and contract liabilities from contracts with customers: (In millions) September 30, 2024 December 31, 2023 Contract assets $ 821 $ 754 Contract liabilities 1,025 1,011 Contract assets, reported within other long-term assets in the consolidated balance sheets, primarily relate to customer discounts (contract incentives) where revenue is recognized and payment of consideration under the contract is contingent upon the transfer of services to a customer over the contractual period. Contract liabilities primarily relate to advance consideration received from customers (deferred revenue) for which transfer of control occurs, and therefore revenue is recognized, as services are provided. Contract balances are reported in a net contract asset or liability position on a contract-by-contract basis at the end of each reporting period. The Company recognized $659 million of revenue during the nine months ended September 30, 2024 that was included in the contract liabilities balance at the beginning of the period. Transaction Price Allocated to Remaining Performance Obligations The following table includes estimated processing and services revenue expected to be recognized in the future related to performance obligations that were unsatisfied (or partially unsatisfied) at September 30, 2024: (In millions) Year Ending December 31, Remainder of 2024 $ 632 2025 2,283 2026 1,739 2027 1,226 Thereafter 1,412 The Company applies the optional exemption under ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”), and does not disclose information about remaining performance obligations for account- and transaction-based processing fees that qualify for recognition under the as-invoiced practical expedient. These multi-year contracts contain variable consideration for stand-ready performance obligations for which the exact quantity and mix of transactions to be processed are contingent upon the customer’s request. The Company also applies the optional exemptions under ASC 606 and does not disclose information for variable consideration that is a sales-based or usage-based royalty promised in exchange for a license of intellectual property or that is allocated entirely to a wholly unsatisfied performance obligation or to a wholly unsatisfied promise to transfer a distinct good or service in a series. The amounts disclosed above as remaining performance obligations consist primarily of fixed or monthly minimum processing fees and maintenance fees under contracts with an original expected duration of greater than one year.

Acquisitions and Dispositions

Acquisitions and Dispositions	9 Months Ended
	Sep. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Acquisitions and Dispositions	Acquisitions and Dispositions Acquisitions were accounted for as business combinations using the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations . Purchase price was allocated to the respective identifiable assets acquired and liabilities assumed based on the estimated fair values at the date of acquisitions. The results of operations for the following acquired and divested businesses are included in the consolidated results of the Company from the respective dates of acquisition and through the respective dates of disposition. Pro forma information for these acquired businesses is not provided because they did not have a material effect, individually or in the aggregate, on the Company’s consolidated results of operations. Acquisitions On October 9, 2023, the Company acquired Skytef Solucões em Captura de Transações Ltda (“Skytef”), a distributor for independent software vendor partners and merchants of the Company’s Electronic Funds Transfer payments software. Skytef is included within the Merchant segment and expands the Company’s distribution network and point-of-sale applications. On November 1, 2023, the Company acquired Sled S.A. (“Sled”), a provider of instant payment solutions. Sled is included within the Merchant segment and expands the Company’s direct payment service capabilities. The Company acquired these businesses in Latin America for an aggregate purchase price, including hold-backs, of $17 million. The purchase price allocations for the Skytef and Sled acquisitions were finalized in the first quarter of 2024, and measurement period adjustments did not have a material impact on the Company’s consolidated statement of income. Dispositions On July 25, 2023, the Company sold its financial reconciliation business, which was reported within the Financial segment, for cash proceeds of $232 million. The Company recognized a pre-tax gain of $177 million on the sale, recorded within net gain on sale of businesses and other assets, with a related tax expense of $49 million recorded within the income tax provision, in the consolidated statement of income during the three months ended September 30, 2023. The pre-tax gain was comprised of the difference between the consideration received and the net carrying amount of the business, including $38 million of allocated goodwill and $13 million of other net assets, primarily consisting of trade accounts receivable and capitalized software.

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets Identifiable intangible assets consisted of the following: (In millions) Gross Accumulated Net Book September 30, 2024 Customer relationships $ 14,662 $ 8,444 $ 6,218 Acquired software and technology 1,951 1,120 831 Trade names 641 400 241 Purchased software 1,036 535 501 Capitalized software and other intangibles 3,863 1,332 2,531 Total $ 22,153 $ 11,831 $ 10,322 December 31, 2023 Customer relationships $ 14,669 $ 7,594 $ 7,075 Acquired software and technology 2,148 1,148 1,000 Trade names 641 356 285 Purchased software 1,087 520 567 Capitalized software and other intangibles 3,356 1,073 2,283 Total $ 21,901 $ 10,691 $ 11,210 Amortization expense associated with the above identifiable intangible assets was $566 million and $579 million for the three months ended September 30, 2024 and 2023, respectively, and $1.7 billion and $1.8 billion for the nine months ended September 30, 2024 and 2023, respectively.

Investments in Unconsolidated A

Investments in Unconsolidated Affiliates	9 Months Ended
	Sep. 30, 2024
Investments in and Advances to Affiliates [Abstract]
Investments in Unconsolidated Affiliates	Investments in Unconsolidated Affiliates The Company maintains investments in various affiliates that are accounted for as equity method investments, the most significant of which are related to the Company’s merchant alliances. The Company’s share of net income or loss from these investments is reported within loss from investments in unconsolidated affiliates and the related tax expense or benefit is reported within the income tax provision in the consolidated statements of income. The Company reviews its equity method investments each reporting period for indications of an other-than-temporary decline in value, including significant changes in business relationships with merchant alliances. A decline in value of an equity method investment determined to be other-than-temporary is recorded as a current-period impairment charge within loss from investments in unconsolidated affiliates in the consolidated statements of income. The estimated fair values of the Company’s investments in unconsolidated merchant alliances assume a continuation beyond the existing contractual term. A renewal of certain of the merchant alliance agreements beyond the current contractual term is not solely within the Company’s control. Merchant Alliances The Company maintains ownership interests in various merchant alliances. A merchant alliance is an agreement between the Company and a financial institution that combines the processing capabilities and management expertise of the Company with the visibility and distribution channel of the financial institution. A merchant alliance acquires credit and debit card transactions from merchants. The Company provides processing and other services to the alliance and charges fees to the alliance based on contractual pricing (see Note 19). The Company maintains a 40% ownership interest in the Wells Fargo Merchant Services merchant alliance (“WFMS”), which is accounted for as an equity method investment. The Company acquired its ownership, at fair value, in WFMS through its 2019 acquisition of First Data Corporation. In the third quarter of 2024, Wells Fargo Bank, National Association (“Wells Fargo”) provided the Company a notice of non-renewal for WFMS. Upon expiration of the merchant alliance, effective April 1, 2025, the Company expects to receive a cash payment or assets equal to the fair value of its share of WFMS, as determined in accordance with an agreed upon contractual valuation and separation process. The Company recorded a $570 million non-cash impairment as a result of an other-than-temporary decline in the carrying value of its equity method investment in WFMS within loss from investments in unconsolidated affiliates and the related tax benefit within the income tax provision in the consolidated statement of income in the third quarter of 2024. The impairment was based on the Company’s estimate of the fair value of its portion of WFMS, and is subject to further adjustments upon completion of the valuation process agreed to by the Company and Wells Fargo and additional information received throughout the final valuation process. The Company’s estimated fair value of WFMS was determined using an income valuation approach, which required estimates of the discount and tax rates; future expected net cash flows, including customer growth and attrition rates, and indirect expenses of WFMS; and other future events that are judgmental in nature, reflecting the risks inherent in future cash flows. The fair value measurements were primarily based on significant inputs that were not observable in the market and thus represented a Level 3 measurement of the fair value hierarchy as defined in ASC 820, Fair Value Measurements . The Company’s investment in its merchant alliances was $1.3 billion and $1.9 billion at September 30, 2024 and December 31, 2023, respectively, and is reported within investments in unconsolidated affiliates in the consolidated balance sheets. Other Equity Investments The Company also maintains investments, over which it does not have significant influence, in various equity securities without a readily determinable fair value. Such investments totaled $137 million and $156 million at September 30, 2024 and December 31, 2023, respectively, and are primarily included within other long-term assets in the consolidated balance sheets. The Company reviews these investments each reporting period to determine whether an impairment or observable price change for the investment has occurred. To the extent such events or changes occur, the Company evaluates the fair value compared to its cost basis in the investment. Gains or losses from a sale of these investments or a change in fair value are included within other expense, net in the consolidated statements of income for the period. Adjustments made to the values recorded for certain equity securities and net gains from sales of equity securities were $2 million and $29 million during the three and nine months ended September 30, 2024, respectively, and were not significant during the three and nine months ended September 30, 2023.

Derivatives and Hedging Instrum

Derivatives and Hedging Instruments	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Instruments	Derivatives and Hedging Instruments In order to limit exposure to risk, the Company maintains derivative instruments with creditworthy institutions to hedge against changing interest rates and foreign currency rate fluctuations. The Company utilizes forward exchange contracts, fixed-to-fixed cross-currency rate swap contracts and other non-derivative hedging instruments to manage such risk. The Company has designated these instruments as cash flow hedges, net investment hedges, or fair value hedges, as further described below. Derivative instruments maintained by the Company are measured on a recurring basis and are recorded at fair value either as an asset or liability in the consolidated balance sheets (see Note 8). Cash Flow Hedges The Company maintains forward exchange contracts, designated as cash flow hedges, to hedge foreign currency exposure to the Indian Rupee. The notional amount of these derivatives was $451 million and $443 million at September 30, 2024 and December 31, 2023, respectively. Based on the amounts recorded in accumulated other comprehensive loss at September 30, 2024, the Company estimates that it will recognize gains of approximately $1 million in cost of processing and services during the next twelve months as foreign exchange forward contracts settle. The Company previously entered into treasury lock agreements (“Treasury Locks”), designated as cash flow hedges to manage exposure to fluctuations in benchmark interest rates in anticipation of the issuance of fixed rate debt in connection with the acquisition and refinancing of certain indebtedness of First Data Corporation and its subsidiaries. In 2019, concurrent with the issuance of U.S dollar-denominated senior notes, the Treasury Locks were settled resulting in a loss, net of income taxes, and recorded in accumulated other comprehensive loss that is being amortized to earnings over the terms of the originally forecast interest payments. The unamortized balance recorded in accumulated other comprehensive loss related to the Treasury Locks was $105 million and $116 million at September 30, 2024 and December 31, 2023, respectively. Based on the amounts recorded in accumulated other comprehensive loss at September 30, 2024, the Company estimates that it will recognize approximately $13 million in net interest expense during the next twelve months related to settled interest rate hedge contracts. Net Investment Hedges To reduce exposure to changes in the value of the Company’s net investments in certain of its foreign currency-denominated subsidiaries due to changes in foreign currency exchange rates, the Company uses fixed-to-fixed cross-currency rate swap contracts and foreign currency-denominated debt as economic hedges of its net investments in such foreign currency-denominated subsidiaries. The aggregate notional amount of the fixed-to-fixed cross-currency rate swap contracts were as follows: (In millions) September 30, 2024 December 31, 2023 Currency Euros 475 400 Singapore Dollars 841 751 Canadian Dollars 253 — These fixed-to-fixed cross-currency rate swaps have been designated as net investment hedges to hedge a portion of the Company’s net investment in certain subsidiaries whose functional currencies are the Euro, Singapore Dollar, and Canadian Dollar. The Company has also designated certain of its Euro- and British Pound-denominated senior notes and Euro commercial paper notes as net investment hedges to hedge a portion of its net investment in certain subsidiaries whose functional currencies are the Euro and the British Pound. Foreign currency transaction gains or losses on the qualifying net investment hedge instruments are recorded as foreign currency translation within other comprehensive income (loss) in the consolidated statements of comprehensive income and will remain in accumulated other comprehensive loss in the consolidated balance sheets until the sale or complete liquidation of the underlying foreign currency-denominated subsidiaries. Foreign currency transaction gains (losses), net of income tax, related to net investment hedges that were recorded as foreign currency translation within other comprehensive income (loss) in the consolidated statements of comprehensive income were as follows: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Cross-currency rate swap contracts $ (33) $ 4 $ (17) $ (3) Foreign currency-denominated debt (134) 123 (33) 9 The Company recorded income tax impacts of $56 million and $(42) million during the three months ended September 30, 2024 and 2023, respectively, and $17 million and $(2) million during the nine months ended September 30, 2024 and 2023, respectively, in other comprehensive income (loss) from the translation of foreign currency-denominated senior notes, Euro commercial paper notes and cross-currency rate swap contracts. Fair Value Hedges The Company maintains fixed-to-fixed cross-currency rate swap contracts, designated as fair value hedges, to mitigate the spot foreign exchange rate risk on the principal amount of its British Pound-denominated 2.250% senior notes due in July 2025, as well as on the principal amount of a Euro-denominated intercompany note. The aggregate notional amount of the fixed-to-fixed cross-currency rate swap contracts were as follows: (In millions) September 30, 2024 December 31, 2023 Currency British Pounds 525 525 Euros 157 157 Net changes in the fair value of the cross-currency rate swaps ($33 million for both the three and nine months ended September 30, 2024), along with the offsetting changes in the fair value of the hedged notes, attributable to fluctuations in the respective foreign currency spot rates are recognized in other expense, net within the consolidated statements of income.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The fair values of cash equivalents, trade accounts receivable, other current assets, settlement assets and obligations, accounts payable, and client deposits approximate their respective carrying values due to the short period of time to maturity. Derivative instruments maintained by the Company (see Note 7) are measured on a recurring basis based on foreign currency spot rates and forwards quoted by banks and foreign currency dealers and are marked to market each period. Contingent consideration related to certain of the Company’s acquisitions is estimated using the present value of a probability-weighted assessment approach based on the likelihood of achieving the earn-out criteria. The Company’s obligation to purchase a redeemable noncontrolling interest in one of its existing merchant alliance joint ventures (see Note 11) is measured at the estimated fair value of the minority interest. This obligation will be settled at a future date through the distribution of certain merchant contracts to the minority partner. The fair value of the Company’s contingent liability for current expected credit losses associated with its debt guarantees, as further described below, is estimated based on assumptions of future risk of default and the corresponding level of credit losses at the time of default. Assets and liabilities measured at fair value on a recurring basis consisted of the following: Fair Value (In millions) Classification Fair Value Hierarchy September 30, December 31, Assets Forward exchange contracts designated as cash flow hedges Prepaid expenses and other current assets Level 2 $ 1 $ 2 Cross-currency rate swap contract designated as fair value hedge Prepaid expenses and other current assets Level 2 31 — Cross-currency rate swap contract designated as fair value hedge Other long-term assets Level 2 — 3 Liabilities Cross-currency rate swap contracts designated as fair value hedges Accounts payable and other current liabilities Level 2 $ 2 $ — Cross-currency rate swap contracts designated as net investment hedges Accounts payable and other current liabilities Level 2 27 — Cross-currency rate swap contracts designated as fair value hedges Other long-term liabilities Level 2 2 1 Cross-currency rate swap contracts designated as net investment hedges Other long-term liabilities Level 2 57 61 Contingent consideration Accounts payable and other current liabilities Level 3 — 2 Obligation to purchase redeemable noncontrolling interest Accounts payable and other current liabilities Level 3 95 — Contingent debt guarantee Other long-term liabilities Level 3 17 23 Debt The Company’s senior notes are recorded at amortized cost but measured at fair value for disclosure purposes. The estimated fair value of senior notes was based on matrix pricing which considers readily observable inputs of comparable securities (Level 2 of the fair value hierarchy). The carrying value of the Company’s foreign lines of credit, commercial paper notes and revolving credit facility borrowings approximates fair value as these instruments have variable interest rates and the Company has not experienced any change to its credit ratings (Level 2 of the fair value hierarchy). The estimated fair value of total debt, excluding finance leases and other financing obligations, was $24.1 billion and $21.6 billion at September 30, 2024 and December 31, 2023, respectively, and the carrying value was $24.3 billion and $22.2 billion at September 30, 2024 and December 31, 2023, respectively. Debt Guarantee Arrangements The Company maintains noncontrolling ownership interests in Sagent M&C, LLC and defi SOLUTIONS Group, LLC (collectively the “Lending Joint Ventures”), which are accounted for under the equity method. The Lending Joint Ventures maintain variable-rate term loan facilities with aggregate outstanding borrowings of $426 million in senior unsecured debt at September 30, 2024 and variable-rate revolving credit facilities with an aggregate borrowing capacity of $83 million with a syndicate of banks, which mature in April 2027. There were $20 million of aggregate outstanding borrowings on the revolving credit facilities at September 30, 2024. The Company has guaranteed the debt of the Lending Joint Ventures. The Company maintains liabilities for its obligations to perform over the term of its debt guarantee arrangements with the Lending Joint Ventures, which are reported within other long-term liabilities in the consolidated balance sheets. The Company has provided aggregate guarantees of $509 million associated with the debt of the Lending Joint Ventures and is entitled to receive a defined fee in exchange for its guarantee of this indebtedness. The Company has not made any payments under the guarantees, nor has it been called upon to do so, and does not anticipate that the Lending Joint Ventures will fail to fulfill their debt obligations. The non-contingent component of the Company’s debt guarantee arrangements is recorded at amortized cost, but measured at fair value for disclosure purposes. The carrying value of the Company’s non-contingent liability of $24 million and $31 million approximates the fair value at September 30, 2024 and December 31, 2023, respectively (Level 3 of the fair value hierarchy). Such guarantees will be amortized in future periods over the contractual term of the debt. The contingent component of the Company’s debt guarantee arrangements represents the current expected credit losses to which the Company is exposed. The amount of the liability, as reflected within the table above, is estimated based on certain financial metrics of the Lending Joint Ventures and historical industry data, which is used to develop assumptions of the likelihood the guaranteed parties will default and the level of credit losses in the event a default occurs. The Company recognized $4 million and $2 million during the three months ended September 30, 2024 and 2023, respectively, and $13 million and $7 million during the nine months ended September 30, 2024 and 2023, respectively, within other expense, net in its consolidated statements of income related to its release from risk under the non-contingent guarantees as well as a change in the provision of estimated credit losses associated with the indebtedness of the Lending Joint Ventures. Other Non-Financial Assets

Accounts Payable and Other Curr

Accounts Payable and Other Current Liabilities	9 Months Ended
	Sep. 30, 2024
Payables and Accruals [Abstract]
Accounts Payable and Other Current Liabilities	Accounts Payable and Other Current Liabilities Accounts payable and other current liabilities consisted of the following: (In millions) September 30, 2024 December 31, 2023 Trade accounts payable $ 483 $ 449 Client deposits 984 931 Transferable federal tax credits (see Note 15) 337 804 Accrued compensation and benefits 303 344 Accrued taxes 267 203 Accrued interest 183 298 Accrued payment network fees 276 232 Operating lease liabilities 109 118 Accrued professional fees 114 96 Obligation to purchase redeemable noncontrolling interest (see Note 11) 95 — Other accrued expenses 1,010 880 Total $ 4,161 $ 4,355

Debt

Debt	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Debt	Debt The Company’s debt consisted of the following: (In millions) September 30, 2024 December 31, 2023 Short-term and current maturities of long-term debt: Foreign lines of credit $ 868 $ 442 Finance lease and other financing obligations 332 313 Total short-term and current maturities of long-term debt $ 1,200 $ 755 Long-term debt: 2.750% senior notes due July 2024 $ — $ 2,000 3.850% senior notes due June 2025 900 900 2.250% senior notes due July 2025 (British Pound-denominated) 704 672 3.200% senior notes due July 2026 2,000 2,000 5.150% senior notes due March 2027 750 — 2.250% senior notes due June 2027 1,000 1,000 1.125% senior notes due July 2027 (Euro-denominated) 559 555 5.450% senior notes due March 2028 900 900 5.375% senior notes due August 2028 700 700 4.200% senior notes due October 2028 1,000 1,000 3.500% senior notes due July 2029 3,000 3,000 4.750% senior notes due March 2030 850 — 2.650% senior notes due June 2030 1,000 1,000 1.625% senior notes due July 2030 (Euro-denominated) 559 555 5.350% senior notes due March 2031 500 — 4.500% senior notes due May 2031 (Euro-denominated) 894 889 3.000% senior notes due July 2031 (British Pound-denominated) 704 672 5.600% senior notes due March 2033 900 900 5.625% senior notes due August 2033 1,300 1,300 5.450% senior notes due March 2034 750 — 5.150% senior notes due August 2034 900 — 4.400% senior notes due July 2049 2,000 2,000 U.S. dollar commercial paper notes 317 418 Euro commercial paper notes 1,329 1,321 Revolving credit facility 70 74 Unamortized discount and deferred financing costs (160) (145) Finance lease and other financing obligations 659 652 Total long-term debt $ 24,085 $ 22,363 The Company was in compliance with all financial debt covenants during the nine months ended September 30, 2024. Senior Notes On August 12, 2024, the Company completed the public offering and issuance of $1.75 billion of senior notes, comprised of $850 million aggregate principal amount of 4.750% senior notes due in March 2030 and $900 million aggregate principal amount of 5.150% senior notes due in August 2034. Interest on these senior notes is paid semi-annually. The Company used the net proceeds from this senior notes offering for general corporate purposes, including the repayment of a portion of the Company’s commercial paper notes and for share repurchases. On March 4, 2024, the Company completed the public offering and issuance of $2.0 billion of senior notes, comprised of $750 million aggregate principal amount of 5.150% senior notes due in March 2027, $500 million aggregate principal amount of 5.350% senior notes due in March 2031 and $750 million aggregate principal amount of 5.450% senior notes due in March 2034. Interest on these senior notes is paid semi-annually. The Company used the net proceeds from this senior notes offering for general corporate purposes, including the repayment of a portion of the Company’s commercial paper notes and for share repurchases, and in July 2024, the repayment of a portion of its 2.750% senior notes. At September 30, 2024, the 3.850% senior notes due in June 2025 and 2.250% senior notes due in July 2025 were classified in the consolidated balance sheet as long-term, as the Company has the intent to refinance this debt on a long-term basis, and the ability to do so under its revolving credit facility. The indentures governing these senior notes contain covenants that, among other matters, limit (i) the Company’s ability to consolidate or merge with or into, or convey, transfer or lease all or substantially all of its properties and assets to, another person, (ii) the Company’s and certain of its subsidiaries’ ability to create or assume liens, and (iii) the Company’s and certain of its subsidiaries’ ability to engage in sale and leaseback transactions. The Company may, at its option, redeem these senior notes, in whole or in part, at any time and from time to time at the applicable redemption price. Commercial Paper The Company maintains unsecured U.S. dollar and Euro commercial paper programs. From time to time, the Company may issue under these programs U.S. dollar commercial paper with maturities of up to 397 days from the date of issuance and Euro commercial paper with maturities of up to 183 days from the date of issuance. Outstanding borrowings under the U.S. dollar program were $317 million and $418 million at September 30, 2024 and December 31, 2023, respectively, with weighted average interest rates of 4.933% and 5.454%, respectively. Outstanding borrowings under the Euro program were $1.3 billion at both September 30, 2024 and December 31, 2023, with weighted average interest rates of 3.629% and 4.029%, respectively. The Company intends to maintain available capacity under its revolving credit facility, as described below, in an amount at least equal to the aggregate outstanding borrowings under its commercial paper programs. Outstanding borrowings under the commercial paper programs are classified in the consolidated balance sheets as long-term as the Company has the intent to refinance this commercial paper on a long-term basis through the continued issuance of new commercial paper upon maturity, and the Company also has the ability to refinance such commercial paper under its revolving credit facility. Revolving Credit Facility The Company maintains a senior unsecured multicurrency revolving credit facility, which matures in June 2027 and provides for a maximum aggregate principal amount of availability of $6.0 billion. Borrowings under the credit facility bear interest at a variable base rate, determined by the term and currency of the borrowing, plus a specified margin based on the Company’s long-term debt rating. Outstanding borrowings under the revolving credit facility were $70 million and $74 million at September 30, 2024 and December 31, 2023, respectively, with corresponding interest rates of 5.970% and 6.450%, respectively. The credit facility also requires the Company to pay a facility fee based on the aggregate commitments in effect under the agreement from time to time. The credit facility contains various restrictions and covenants that require the Company to, among other things, limit its consolidated indebtedness as of the end of each fiscal quarter to no more than 3.75 times the Company’s consolidated net income before interest, taxes, depreciation, amortization, non-cash charges and expenses and certain other adjustments during the period of four fiscal quarters then ended, subject to certain exceptions. Foreign Lines of Credit The Company maintains various short-term lines of credit and other borrowing arrangements with foreign banks and alliance partners primarily to fund merchant settlement advances associated with operations in Latin America, including an annually renewable term loan facility to fund settlement advance cash payments in Brazil. This term loan has a notional value of 514 million Brazilian real ($95 million USD equivalent) at September 30, 2024 and bears interest at a variable Certificado de Depósito Interbancário (CDI) Rate, plus a specified margin per annum. In February 2024, this term loan facility was amended, which amendment extended its maturity date to April 2025 and decreased the specified margin to 1.25% per annum. The following table provides a summary of the outstanding borrowings and weighted average interest rates of the Company’s foreign lines of credit and other borrowing arrangements by country: Outstanding Borrowings (in millions) Weighted-Average Interest Rate September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Argentina $ 635 $ 208 43.775 % 121.581 % Brazil 109 123 11.663 % 13.500 % Uruguay 52 55 10.061 % 11.125 % Other 72 56 5.061 % 4.912 % Total $ 868 $ 442 34.503 % 63.060 %

Redeemable Noncontrolling Inter

Redeemable Noncontrolling Interest	9 Months Ended
	Sep. 30, 2024
Noncontrolling Interest [Abstract]
Redeemable Noncontrolling Interest	Redeemable Noncontrolling Interest The minority partner in one of the Company’s existing merchant alliance joint ventures maintained a redeemable noncontrolling 1% interest which was presented outside of equity and carried at its estimated redemption value. The minority partner was entitled to a contractually determined share of the entity’s income, and the joint venture agreement contained redemption features whereby the interest held by the minority partner was redeemable either (i) at the option of the holder or (ii) upon the occurrence of an event that is not solely within the Company’s control. Effective June 2024, the Company and the merchant alliance joint venture minority partner mutually agreed to terminate the joint venture agreement on September 1, 2024. Under the provisions of the separation agreement, the Company redeemed the minority partner’s membership interest in exchange for a future distribution of certain merchant contracts. The redeemable noncontrolling interest was adjusted to reflect the estimated redemption value, with a corresponding adjustment recorded to additional paid-in capital (see Notes 8 and 12). Additionally, as the redeemable noncontrolling interest is now mandatorily redeemable, the Company’s obligation to satisfy the purchase of the interest has been reclassified as a current liability in the accompanying consolidated balance sheet (see Note 9). The Company maintains an ongoing relationship with the former minority partner to provide processing and other support services following the termination of the joint venture agreement. The following table presents a summary of the redeemable noncontrolling interest activity during the nine months ended September 30: (In millions) 2024 2023 Balance at beginning of period $ 161 $ 161 Distributions paid to redeemable noncontrolling interest (13) (19) Share of income 13 19 Adjustment to estimated redemption value of redeemable noncontrolling interest (66) — Reclassification to current liability (95) — Balance at end of period $ — $ 161

Equity

Equity	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Equity	Equity The following tables provide changes in equity during the three and nine months ended September 30, 2024 and 2023: Fiserv, Inc. Shareholders’ Equity Three Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Noncontrolling Interests Total Equity Balance at June 30, 2024 784 207 $ 8 $ 23,014 $ (1,197) $ 22,073 $ (15,744) $ 624 $ 28,778 Net income 564 7 571 Other comprehensive income 241 21 262 Share-based compensation 88 88 Shares issued under stock plans (1) (99) 64 (35) Purchases of treasury stock 8 (1,261) (1,261) Balance at September 30, 2024 784 214 $ 8 $ 23,003 $ (956) $ 22,637 $ (16,941) $ 652 $ 28,403 Fiserv, Inc. Shareholders’ Equity Three Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Total Equity Noncontrolling Interests Balance at June 30, 2023 784 173 $ 8 $ 22,988 $ (900) $ 18,622 $ (10,727) $ 725 $ 30,716 Net income (1) 952 11 963 Distributions paid to noncontrolling interests (2) (2) (2) Acquisition of noncontrolling interest of consolidated subsidiary (3) 6 (65) (59) Other comprehensive loss (266) (17) (283) Share-based compensation 76 76 Shares issued under stock plans (14) 19 5 Purchases of treasury stock 9 (1,191) (1,191) Balance at September 30, 2023 784 182 $ 8 $ 23,056 $ (1,166) $ 19,574 $ (11,899) $ 652 $ 30,225 (1) The total net income presented in equity for the three months ended September 30, 2023 is different than the amount presented in the consolidated statement of income due to the net income attributable to redeemable noncontrolling interest of $6 million not included in equity. (2) The total distributions presented in equity for the three months ended September 30, 2023 excludes $6 million in distributions paid to redeemable noncontrolling interest not included in equity. (3) The Company acquired the remaining 49% ownership interest in European Merchant Services B.V., a Netherlands-based merchant acceptance business, during the three months ended September 30, 2023. The Company previously held a majority controlling financial interest in this consolidated subsidiary. Fiserv, Inc. Shareholders’ Equity Nine Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Noncontrolling Interests Total Equity Balance at December 31, 2023 784 190 $ 8 $ 23,103 $ (783) $ 20,444 $ (12,915) $ 651 $ 30,508 Net income (1) 2,193 26 2,219 Distributions paid to noncontrolling interests (2) (28) (28) Change in estimated redemption value of redeemable noncontrolling interest (see Note 11) 66 66 Other comprehensive (loss) income (173) 3 (170) Share-based compensation 273 273 Shares issued under stock plans (4) (439) 261 (178) Purchases of treasury stock 28 (4,287) (4,287) Balance at September 30, 2024 784 214 $ 8 $ 23,003 $ (956) $ 22,637 $ (16,941) $ 652 $ 28,403 (1) The total net income presented in equity for the nine months ended September 30, 2024 is different than the amount presented in the consolidated statement of income due to the net income attributable to redeemable noncontrolling interest of $13 million not included in equity. (2) The total distributions presented in equity for the nine months ended September 30, 2024 excludes $13 million in distributions paid to redeemable noncontrolling interest not included in equity. Fiserv, Inc. Shareholders’ Equity Nine Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Total Equity Noncontrolling Interests Balance at December 31, 2022 784 154 $ 8 $ 23,011 $ (1,189) $ 17,376 $ (8,378) $ 699 $ 31,527 Net income (1) 2,198 23 2,221 Distributions paid to noncontrolling interests (2) (3) (3) Acquisition of noncontrolling interest of consolidated subsidiary (3) 6 (65) (59) Other comprehensive income (loss) 23 (2) 21 Share-based compensation 275 275 Shares issued under stock plans (3) (236) 163 (73) Purchases of treasury stock 31 (3,684) (3,684) Balance at September 30, 2023 784 182 $ 8 $ 23,056 $ (1,166) $ 19,574 $ (11,899) $ 652 $ 30,225 (1) The total net income presented in equity for the nine months ended September 30, 2023 is different than the amount presented in the consolidated statement of income due to the net income attributable to redeemable noncontrolling interest of $19 million not included in equity. (2) The total distributions presented in equity for the nine months ended September 30, 2023 excludes $19 million in distributions paid to redeemable noncontrolling interest not included in equity. (3) The Company acquired the remaining 49% ownership interest in European Merchant Services B.V., a Netherlands-based merchant acceptance business, during the nine months ended September 30, 2023. The Company previously held a majority controlling financial interest in this consolidated subsidiary.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive loss by component, net of income taxes, consisted of the following: (In millions) Derivatives Foreign Pension Plans Total Three Months Ended September 30, 2024 Balance at June 30, 2024 $ (72) $ (1,029) $ (96) $ (1,197) Other comprehensive income (loss) before reclassifications (6) 245 — 239 Amounts reclassified from accumulated other comprehensive loss 2 — — 2 Net current-period other comprehensive income (loss) (4) 245 — 241 Balance at September 30, 2024 $ (76) $ (784) $ (96) $ (956) Three Months Ended September 30, 2023 Balance at June 30, 2023 $ (91) $ (789) $ (20) $ (900) Other comprehensive income (loss) before reclassifications 5 (286) — (281) Amounts reclassified from accumulated other comprehensive loss 5 10 — 15 Net current-period other comprehensive income (loss) 10 (276) — (266) Balance at September 30, 2023 $ (81) $ (1,065) $ (20) $ (1,166) Nine Months Ended September 30, 2024 Balance at December 31, 2023 $ (78) $ (688) $ (17) $ (783) Other comprehensive loss before reclassifications (see Note 1) (4) (96) (79) (179) Amounts reclassified from accumulated other comprehensive loss 6 — — 6 Net current-period other comprehensive income (loss) 2 (96) (79) (173) Balance at September 30, 2024 $ (76) $ (784) $ (96) $ (956) Nine Months Ended September 30, 2023 Balance at December 31, 2022 $ (103) $ (1,064) $ (22) $ (1,189) Other comprehensive income (loss) before reclassifications 11 (11) 2 2 Amounts reclassified from accumulated other comprehensive loss 11 10 — 21 Net current-period other comprehensive income (loss) 22 (1) 2 23 Balance at September 30, 2023 $ (81) $ (1,065) $ (20) $ (1,166)

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation	Share-Based Compensation The Company recognized $88 million and $76 million of share-based compensation expense during the three months ended September 30, 2024 and 2023, respectively, and $273 million and $275 million of share-based compensation expense during the nine months ended September 30, 2024 and 2023, respectively. The Company’s share-based compensation awards are typically granted in the first quarter of the year, and may also occur throughout the year in conjunction with acquisitions of businesses. At September 30, 2024, the total remaining unrecognized compensation cost for restricted stock units and awards, performance share units, and unvested stock options, net of estimated forfeitures, of $412 million is expected to be recognized over a weighted-average period of 1.9 years. A summary of restricted stock unit, restricted stock award and performance share unit activity during the nine months ended September 30, 2024 is as follows: Restricted Stock Units and Awards Performance Share Units Shares Weighted-Average Grant Date Fair Value Shares Weighted-Average Grant Date Fair Value Units and awards - December 31, 2023 5,419 $ 103.11 3,219 $ 104.09 Granted 2,243 149.78 334 173.06 Forfeited (333) 119.63 (512) 102.44 Vested (2,446) 103.54 (1,052) 102.06 Units and awards - September 30, 2024 4,883 $ 123.04 1,989 $ 115.23 A summary of stock option activity during the nine months ended September 30, 2024 is as follows: Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (In millions) Stock options outstanding - December 31, 2023 3,865 $ 72.36 Granted — — Forfeited (10) 108.15 Exercised (2,153) 58.48 Stock options outstanding - September 30, 2024 1,702 $ 89.69 4.33 $ 153 Stock options exercisable - September 30, 2024 1,702 $ 89.69 4.33 $ 153

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s income tax provision and effective income tax rate were as follows: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Income tax provision $ 74 $ 239 $ 448 $ 544 Effective income tax rate 5.8 % 19.8 % 13.5 % 19.5 % The income tax provision as a percentage of income before income taxes and loss from investments in unconsolidated affiliates was 5.8% and 19.8% for the three months ended September 30, 2024 and 2023, respectively, and 13.5% and 19.5% for the nine months ended September 30, 2024 and 2023, respectively. The effective income tax rate as a percentage of income before income taxes and loss from investments in unconsolidated affiliates for the three and nine months ended September 30, 2024 included a deferred tax benefit of $142 million recorded within the income tax provision associated with a non-cash impairment charge of $570 million recorded within loss from investments in unconsolidated affiliates. Pursuant to provisions under the Inflation Reduction Act, the Company has purchased transferable federal tax credits from various counterparties. Such federal tax credits were purchased at negotiated discounts, resulting in an income tax benefit. Receivables associated with transferable federal tax credits are recorded within prepaid expenses and other current assets, and amounts owed to counterparties for the purchased credits are recorded within accounts payable and other current liabilities within the consolidated balance sheets at September 30, 2024 and December 31, 2023. The Company’s potential liability for unrecognized tax benefits before interest and penalties was approximately $88 million at September 30, 2024. The Company believes it is reasonably possible that the liability for unrecognized tax benefits may decrease by up to $5 million over the next twelve months as a result of possible closure of tax audits, audit settlements, and the lapse of the statutes of limitations in various jurisdictions. As of September 30, 2024, the Company’s U.S. federal income tax return for 2023, and tax returns in certain states and foreign jurisdictions for 2017 through 2023, remain subject to examination by taxing authorities.

Shares Used in Computing Net In

Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc.	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc.	Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. The computation of shares used in calculating basic and diluted net income per share is as follows: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - basic 573.7 606.2 582.5 616.2 Common stock equivalents 3.2 4.1 3.2 4.1 Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - diluted 576.9 610.3 585.7 620.3 For the three and nine months ended September 30, 2023, stock options for 140,193 and 948,973 shares, respectively, were excluded from the calculation of weighted-average outstanding shares - diluted because their impact was anti-dilutive. For both the three and nine months ended September 30, 2024, stock options excluded from the calculation of weighted-average outstanding shares - diluted were not significant.

Cash Flow Information

Cash Flow Information	9 Months Ended
	Sep. 30, 2024
Supplemental Cash Flow Elements [Abstract]
Cash Flow Information	Cash Flow Information Supplemental cash flow information consisted of the following: Nine Months Ended (In millions) 2024 2023 Interest paid $ 983 $ 703 Net income taxes paid 1,015 966 Treasury stock purchases settled after the balance sheet date 39 6 Software obtained under financing arrangements 96 175 Right-of-use assets obtained in exchange for lease liabilities - operating leases 74 69 Right-of-use assets obtained in exchange for lease liabilities - finance leases 197 242

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation and Legislative Matters In the normal course of business, the Company or its subsidiaries are named as defendants in lawsuits in which claims are asserted against the Company. The Company maintained an accrual of $29 million and $32 million a t September 30, 2024 and December 31, 2023, respectively, related to its various legal proceedings, primarily associated with the Company’s merchant acquiring business and certain tax matters. The Company’s estimate of the possible range of exposure for various legal proceedings in excess of amounts accrued is $0 million to approximately $110 million. In the opinion of management, the liabilities, if any, which may ultimately result from such legal proceedings are not expected to have a material adverse effect on the Company’s consolidated financial statements. Electronic Payments Transactions In connection with the Company’s processing of electronic payments transactions, which are separate and distinct from the settlement payment transactions described in Note 1, funds received from subscribers are invested from the time the Company collects the funds until payments are made to the applicable recipients. These subscriber funds are invested in short-term, highly liquid investments. Subscriber funds, which are not included in the Company’s consolidated balance sheets, can fluctuate significantly based on consumer bill payment and debit card activity and totaled $677 million and $3.5 billion at September 30, 2024 and December 31, 2023, respectively. Indemnifications and Warranties The Company may indemnify its clients from certain costs resulting from claims of patent, copyright or trademark infringement associated with its clients’ use of the Company’s products or services. The Company may also warrant to clients that its products and services will operate in accordance with identified specifications. From time to time, in connection with sales of businesses, the Company agrees to indemnify the buyers of such businesses for liabilities associated with the businesses that are sold. Payments, net of recoveries, under such indemnification or warranty provisions were not material to the Company’s consolidated financial statements.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2024
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Merchant Alliances A portion of the Company’s business is conducted through merchant alliances between the Company and financial institutions (see Note 6). A merchant alliance is an agreement between the Company and a financial institution that combines the processing capabilities and management expertise of the Company with the visibility and distribution channel of the financial institution. A merchant alliance acquires credit and debit card transactions from merchants. The Company provides processing and other services to the alliance and charges fees to the alliance based on contractual pricing. To the extent the Company maintains a controlling financial interest in an alliance, the alliance’s financial statements are consolidated with those of the Company and the related processing fees are treated as an intercompany transaction and eliminated in consolidation. To the extent the Company has significant influence in, but not control of, an alliance, the Company uses the equity method to account for its investment in the alliance. As a result, the processing and other service fees charged to merchant alliances accounted for under the equity method are recognized in the Company’s consolidated statements of income primarily as processing and services revenue. Such fees totaled $36 million and $44 million for the three months ended September 30, 2024 and 2023, respectively, and $113 million and $135 million for the nine months ended September 30, 2024 and 2023, respectively. No directors or officers of the Company have ownership interests in any of the alliances. The formation of each of these alliances generally involves the Company and the financial institution contributing contracts with merchants to the alliance and a cash payment from one owner to the other to achieve the desired ownership percentage for each. The Company and the financial institution enter into a long-term processing service agreement, which governs the Company’s provision of transaction processing services to the alliance. The Company had approximately $26 million and $38 million of amounts due from unconsolidated merchant alliances included within trade accounts receivable, net in the Company’s consolidated balance sheets at September 30, 2024 and December 31, 2023, respectively. Share Repurchase On August 7, 2023, the Company entered into a stock purchase agreement with ValueAct Capital Master Fund, L.P., an affiliate of which employed a member of the Company’s board of directors, to repurchase 4.1 million shares of the Company’s common stock for $121.98 per share in a privately negotiated transaction for an aggregate purchase price of $500 million. The repurchase was effected pursuant to an existing repurchase authorization for up to 75.0 million shares of the Company’s common stock approved by the Company’s board of directors on February 22, 2023. The share repurchase was completed on August 8, 2023, and the fair value of the repurchased shares of Company common stock was recorded to treasury stock during the three months ended September 30, 2023.

Business Segment Information

Business Segment Information	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Business Segment Information	Business Segment Information Following the Segment Realignment (see Note 1), the Company’s operations are comprised of the Merchant segment and the Financial segment. The businesses in the Merchant segment provide commerce-enabling products and services to companies of all sizes around the world. These products and services include merchant acquiring and digital commerce services; mobile payment services; security and fraud protection solutions; stored-value solutions; and pay-by-bank solutions. The businesses within the Merchant segment consist of the following: • Small Business – provides products and services to small businesses and independent software vendors, including Clover ® , the Company's point-of-sale integrated commerce operating system for small business clients • Enterprise – provides products and services to large businesses, including Carat SM , the Company's integrated commerce operating system for enterprise clients • Processing – provides products and services to financial institutions, joint ventures, and other third party resellers which have direct relationships with merchants The Company distributes the products and services in the Merchant segment businesses through a variety of channels, including direct sales teams, strategic partnerships with agent sales forces, independent software vendors, financial institutions and other strategic partners in the form of joint venture alliances, revenue sharing alliances and referral agreements. The businesses in the Financial segment provide products and services to financial institution, corporate and public sector clients across the world, enabling the processing of customer loan and deposit accounts, digital payments and card transactions. The businesses within the Financial segment consist of the following: • Digital Payments – provides debit card processing services; debit network services; security and fraud protection products; bill payment; person-to-person payments; and account-to-account transfers • Issuing – provides credit card processing services; prepaid card processing services; card production services; print services; government payment processing; and student loan processing • Banking – provides customer loan and deposit account processing; digital banking; financial and risk management; professional services and consulting; and check processing Corporate and Other supports the reportable segments described above, and consists of amortization of acquisition-related intangible assets, unallocated corporate expenses and other activities that are not considered when management evaluates segment performance, such as gains or losses on sales of businesses, certain assets or investments; costs associated with acquisition and divestiture activity; certain services revenue associated with various dispositions; and postage reimbursements. Operating results for each segment were as follows: Reportable Segments (In millions) Merchant Financial Corporate Total Three Months Ended September 30, 2024 Processing and services revenue $ 2,198 $ 2,036 $ 3 $ 4,237 Product revenue 271 376 331 978 Total revenue $ 2,469 $ 2,412 $ 334 $ 5,215 Operating income (loss) $ 931 $ 1,143 $ (472) $ 1,602 Three Months Ended September 30, 2023 Processing and services revenue $ 1,971 $ 2,032 $ 5 $ 4,008 Product revenue 288 270 307 865 Total revenue $ 2,259 $ 2,302 $ 312 $ 4,873 Operating income (loss) $ 786 $ 1,079 $ (362) $ 1,503 Nine Months Ended September 30, 2024 Processing and services revenue $ 6,340 $ 6,024 $ 13 $ 12,377 Product revenue 792 1,052 984 2,828 Total revenue $ 7,132 $ 7,076 $ 997 $ 15,205 Operating income (loss) $ 2,582 $ 3,244 $ (1,615) $ 4,211 Nine Months Ended September 30, 2023 Processing and services revenue $ 5,638 $ 5,949 $ 18 $ 11,605 Product revenue 823 821 927 2,571 Total revenue $ 6,461 $ 6,770 $ 945 $ 14,176 Operating income (loss) $ 2,123 $ 3,050 $ (1,605) $ 3,568

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net Income (Loss) Attributable to Parent	$ 564	$ 952	$ 2,193	$ 2,198

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements for the three and nine months ended September 30, 2024 and 2023 are unaudited. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial statements have been included. Such adjustments consisted of normal recurring items. Interim results are not necessarily indicative of results for a full year. The consolidated financial statements and accompanying notes are presented as permitted by Form 10-Q and do not contain certain information included in the annual consolidated financial statements and accompanying notes of Fiserv, Inc. (the “Company”). These interim consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.
Segment Realignment	Segment Realignment Effective in the first quarter of 2024, the Company realigned its reportable segments to correspond with changes in its business designed to further enhance operational performance in the delivery of its integrated portfolio of products and solutions to its financial institution clients (the “Segment Realignment”). The Company’s new reportable segments are the Merchant Solutions (“Merchant”) segment and the Financial Solutions (“Financial”) segment. Segment results for the three and nine months ended September 30, 2023 have been recast to reflect the Segment Realignment. See Note 20 for additional information.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of Fiserv, Inc. and its subsidiaries in which the Company holds a majority controlling financial interest. All intercompany transactions and balances between the Company and its subsidiaries have been eliminated in consolidation. Control is typically established when ownership and voting interests in an entity are greater than 50%. Investments in which the Company has significant influence but not control are accounted for using the equity method of accounting, for which the Company’s share of net income or loss is reported within loss from investments in unconsolidated affiliates, and the related tax expense or benefit is reported within the income tax provision in the consolidated statements of income. Significant influence over an affiliate’s operations generally coincides with an ownership interest of between 20% and 50%; however, for partnerships and limited liability companies, an ownership interest of between 3% and 50% or board of director representation may also constitute significant influence. The Company maintains a majority controlling financial interest in certain entities, mostly related to consolidated merchant alliances (see Note 19). Noncontrolling interests represent the minority shareholders’ share of the net income or loss and equity in consolidated subsidiaries. The Company’s noncontrolling interests presented in the consolidated statements of income include net income attributable to noncontrolling interests and redeemable noncontrolling interest. Noncontrolling interests are presented as a component of equity in the consolidated balance sheets. Noncontrolling interests that are redeemable upon the occurrence of an event that is not solely within the Company’s control are presented outside of equity and are carried at their estimated redemption value if it exceeds the initial carrying value of the redeemable interest (see Note 11).
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S.”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from those estimates.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents consist of cash and investments with original maturities of 90 days or less and are stated at cost in the consolidated balance sheets, which approximates market value. Cash and cash equivalents that are restricted from use due to regulatory or other requirements are included in other long-term assets in the consolidated balance sheets. Cash and cash equivalents held on behalf of merchants and other payees are included in settlement assets in the consolidated balance sheets. The changes in settlement cash and cash equivalents are included in settlement activity, net within cash flows from financing activities in the consolidated statements of cash flows.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts
Prepaid Expenses and Other Current Assets	The Company offers merchants advance access to capital through its Clover Capital program. Under this program, merchants sell fixed amounts of their future credit card receivables to the Company in exchange for an up-front purchase price payment. The Company also offers merchants within its international operations advance access to capital by providing them the opportunity to receive settlement cash payments in advance in exchange for their receivables from card issuers, including when the cardholders have elected to pay over time in installments. The Company maintains various short-term lines of credit with foreign banks and alliance partners to fund such anticipated settlement activity (see Note 10). These local currency denominated arrangements are primarily associated with the Company’s operations in Latin America, the most significant of which are denominated in Argentine Peso and Brazilian Real. The changes in the Clover Capital and settlement advance cash programs are included in merchant cash advances, net within cash flows from investing activities in the consolidated statements of cash flows.
Settlement Assets and Obligations	Settlement Assets and Obligations Settlement assets and obligations represent intermediary balances arising from the settlement process, which involves the transfer of funds among card issuers, payment networks, processors, merchants and consumers, and collateral amounts held to manage merchant credit risk, primarily associated with the Company’s merchant acquiring services. As a processor, the Company facilitates the clearing and settlement activity for the merchant and records settlement assets and obligations upon processing a payment transaction. Settlement assets represent cash received or amounts receivable from agents, payment networks, bank partners, merchants or direct consumers. Settlement obligations represent amounts payable to merchants and payees. Certain merchant settlement assets (included within settlement receivables) that relate to settlement obligations are held by partner banks to which the Company does not have legal ownership, but which the Company has the right to use, to satisfy the related settlement obligations. The Company records settlement obligations for amounts payable to merchants and for outstanding payment instruments issued to payees that have not yet been presented for settlement.
Allowance for Merchant Credit Losses	Allowance for Merchant Credit Losses With respect to the Company’s merchant acquiring business, the Company’s merchant customers have the legal obligation to refund any charges properly reversed by the cardholder. However, in the event the Company is not able to collect the refunded amounts from the merchants, the Company may be liable for the reversed charges. The Company’s risk in this area primarily relates to situations where a cardholder has purchased goods or services to be delivered in the future. The Company requires cash deposits, guarantees, letters of credit or other types of collateral from certain merchants to mitigate this risk. Collateral held by the Company, or held by partner banks for the Company’s benefit, is classified within settlement assets, and the obligation to repay the collateral is classified within settlement obligations in the consolidated balance sheets. The Company also utilizes a number of systems and procedures to manage merchant credit risk. Despite these efforts, the Company experiences losses due to merchant defaults. The aggregate merchant credit loss expense, recognized by the Company within cost of processing and services in the consolidated statements of income, was $24 million and $25 million for the three months ended September 30, 2024 and 2023, respectively, and $77 million and $62 million for the nine months ended September 30, 2024 and 2023, respectively.
Goodwill	Goodwill Goodwill represents the excess of purchase price over the fair value of identifiable assets acquired and liabilities assumed in a business combination. The Company evaluates goodwill for impairment on an annual basis, or more frequently if circumstances indicate possible impairment. Goodwill is tested for impairment at a reporting unit level, which is one level below the Company’s operating segments. Th e Company’s most recent annual impairment assessment of its reporting units in the fourth quarter of 2023 determined that its goodwill was not impaired as the estimated fair values exceeded the carrying values. However, it is reasonably possible that future developments related to the interest or currency exchange rate environments; a shift in strategic initiatives; a deterioration in financial performance within a particular reporting unit; or significant changes in the composition of, or assumptions used in, the quantitative test for certain of the Company’s reporting units (such as an increase in risk-adjusted discount rates)
Foreign Currency	Foreign Currency The U.S. dollar is the functional currency of the Company’s U.S.-based and certain foreign-based businesses. Where the functional currency differs from the U.S. dollar, assets and liabilities are translated into U.S. dollars at the exchange rates in effect at the balance sheet date. Revenue and expenses are translated at the average exchange rates during the reporting period. Gains and losses from foreign currency translation are recorded as a separate component of accumulated other comprehensive loss. Gains and losses from foreign currency transactions are included in determining net income for the reporting period. Financial statements of subsidiaries located in highly inflationary economies outside of the U.S. are remeasured into U.S. dollars, and the foreign currency gains and losses from the remeasurement of monetary assets and liabilities are reflected in the consolidated statements of income, rather than as foreign currency translation within accumulated other comprehensive loss in the consolidated balance sheets. The remeasurement of monetary assets and liabilities in highly inflationary economies, including Argentina, resulted in foreign currency exchange losses of $22 million and $38 million for the three months ended September 30, 2024 and 2023, respectively, and $75 million and $88 million for the nine months ended September 30, 2024 and 2023, respectively, which is included within other expense, net in the consolidated statements of income. To reduce exposure to changes in the value of the Company’s net investments in certain of its foreign currency-denominated subsidiaries due to changes in foreign currency exchange rates, the Company uses fixed-to-fixed cross-currency rate swap contracts and foreign currency-denominated debt as economic hedges of its net investments in such foreign currency-denominated subsidiaries. Foreign currency transaction gains or losses on the qualifying net investment hedge instruments are recorded as foreign currency translation, net of tax, within other comprehensive income (loss) in the consolidated statements of comprehensive income and will remain in accumulated other comprehensive loss within the consolidated balance sheets until the sale or complete liquidation of the underlying foreign currency-denominated subsidiaries.
Derivatives	Derivatives Derivatives are entered into for periods consistent with related underlying exposures and are recorded in the consolidated balance sheets as either an asset or liability measured at fair value. If the derivative is designated as a cash flow hedge, changes in the fair value of the derivative are recorded as a component of accumulated other comprehensive loss and recognized in the consolidated statements of income when the hedged item affects earnings. If the derivative is designated as a net investment hedge, changes in the fair value of the derivative, net of tax, are recorded in the foreign currency translation component of other comprehensive income (loss) until the sale or complete liquidation of the underlying net investment. If the derivative is designated as a fair value hedge, changes in the fair value of the derivative are recorded in the same line item as the changes in the fair value of the hedged item and recognized in the consolidated statements of income. To the extent a derivative is not designated as a hedge, changes in fair value are recognized in the consolidated statements of income. The Company’s policy is to enter into derivatives with creditworthy institutions and not to enter into such derivatives for speculative purposes.
Defined Benefit Pension Plans	Defined Benefit Pension Plans The Company maintains frozen noncontributory defined benefit pension plans covering certain employees in Europe and the U.S. Effective September 30, 2023, the Company terminated its United Kingdom (“U.K.”) and U.S. defined benefit pension plans. In March 2024, the Company entered into a group annuity insurance contract to provide for the administration of future payments to eligible plan participants of the terminated U.K. plan. In connection with the buy-in of this insurance policy, the plan’s projected benefit obligation was remeasured to the value of the group annuity insurance contract, resulting in an unrecognized loss, net of tax, of approximately $63 million recorded in accumulated other comprehensive loss within the consolidated balance sheet. Upon the settlement of the terminated plans, which is expected to be completed in the fourth quarter of 2024, the Company will fund an estimated plan termination liability shortfall for the U.S. defined benefit pension plans of $20 million and expects to recognize a net non-cash pre-tax pension settlement charge for the terminated U.S. and U.K. plans of approximately $140 million, which also includes the recognition of remaining net actuarial unrecognized losses recorded within accumulated other comprehensive loss. The amount of accrued vested benefits to be received by participants will not be impacted.
Interest Expense, Net	Interest Expense, Net
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2022-03, Fair Value Measurement (Topic 820) : Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions (“ASU 2022-03”), which clarifies the guidance in Accounting Standards Codification (“ASC”) Topic 820, Fair Value Measurement (“Topic 820”), when measuring the fair value of an equity security subject to contractual restrictions that prohibit the sale of an equity security and introduces new disclosure requirements for equity securities subject to contractual sale restrictions that are measured at fair value in accordance with ASC Topic 820. For public entities, ASU 2022-03 is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. The provisions within ASU 2022-03 are to be applied prospectively with any adjustments from the adoption recognized in earnings and disclosed on the date of adoption. The Company adopted ASU 2022-03 effective January 1, 2024, and the adoption did not have a material impact on the Company’s consolidated financial statements or disclosures for the nine months ended September 30, 2024. Recently Issued Accounting Pronouncements In 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which enhances and expands the current annual and interim requirements on segment information disclosures. Under the new disclosure requirements, entities will be required to disclose, on an annual and interim basis: significant segment expense categories and amounts for each reportable segment that are included in the reported measure of segment profit or loss and regularly provided to the chief operating decision maker (“CODM”); an aggregate amount and qualitative description of other segment items included in each reported measure of segment profit or loss for each reportable segment; measures of a segment’s profit or loss that are used by the CODM to assess segment performance and decide how to allocate resources; and disclosure of the title and position of the individual or the name of the group identified as the CODM. For public entities, the provisions within ASU 2023-07 are to be applied retrospectively for all comparative periods and are effective for fiscal years beginning after December 15, 2023, and for interim periods of fiscal years beginning after December 15, 2024. The Company is currently assessing its annual financial statement segment information disclosures in connection with the adoption of ASU 2023-07, effective for the year ending December 31, 2024. In 2023, the FASB issued ASU No. 2023-09 , Income Taxes (Topic 740) - Improvement to Income Tax Disclosures (“ASU 2023-09” ), which establishes new income tax disclosure requirements in addition to modifying and eliminating certain existing requirements. ASU 2023-09 requires entities to consistently categorize and provide greater disaggregation of information within the income tax reconciliation to enable users of financial statements to understand the nature and magnitude of factors contributing to the difference between the effective and statutory tax rates. For public entities, the provisions within ASU 2023-09 are effective for fiscal years beginning after December 15, 2024, and for interim periods of fiscal years beginning after December 15, 2025. The Company is currently assessing the impact the adoption of ASU 2023-09 will have on its consolidated financial statement disclosures.
Revenue Recognition	Revenue Recognition The Company generates revenue from the delivery of processing, service and product solutions. Revenue is measured based on consideration specified in a contract with a customer, and excludes any amounts collected on behalf of third parties. The Company recognizes revenue when it satisfies a performance obligation by transferring control over a product or service to a customer which may be at a point in time or over time. The Company applies the optional exemption under ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”), and does not disclose information about remaining performance obligations for account- and transaction-based processing fees that qualify for recognition under the as-invoiced practical expedient. These multi-year contracts contain variable consideration for stand-ready performance obligations for which the exact quantity and mix of transactions to be processed are contingent upon the customer’s request. The Company also applies the optional exemptions under ASC 606 and does not disclose information for variable consideration that is a sales-based or usage-based royalty promised in exchange for a license of intellectual property or that is allocated entirely to a wholly unsatisfied performance obligation or to a wholly unsatisfied promise to transfer a distinct good or service in a series. The amounts disclosed above as remaining performance obligations consist primarily of fixed or monthly minimum processing fees and maintenance fees under contracts with an original expected duration of greater than one year.
Fair Value Measurements	Fair Value Measurements The fair values of cash equivalents, trade accounts receivable, other current assets, settlement assets and obligations, accounts payable, and client deposits approximate their respective carrying values due to the short period of time to maturity. Derivative instruments maintained by the Company (see Note 7) are measured on a recurring basis based on foreign currency spot rates and forwards quoted by banks and foreign currency dealers and are marked to market each period. Contingent consideration related to certain of the Company’s acquisitions is estimated using the present value of a probability-weighted assessment approach based on the likelihood of achieving the earn-out criteria. The Company’s obligation to purchase a redeemable noncontrolling interest in one of its existing merchant alliance joint ventures (see Note 11) is measured at the estimated fair value of the minority interest. This obligation will be settled at a future date through the distribution of certain merchant contracts to the minority partner. The fair value of the Company’s contingent liability for current expected credit losses associated with its debt guarantees, as further described below, is estimated based on assumptions of future risk of default and the corresponding level of credit losses at the time of default.

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Restrictions on cash and cash equivalents	The following table provides a reconciliation between cash and cash equivalents on the consolidated balance sheets and the consolidated statements of cash flows: (In millions) September 30, 2024 December 31, 2023 September 30, 2023 Cash and cash equivalents on the consolidated balance sheets $ 1,228 $ 1,204 $ 1,349 Cash and cash equivalents included in settlement assets 2,243 1,756 1,653 Other restricted cash 2 3 3 Total cash and cash equivalents on the consolidated statements of cash flows $ 3,473 $ 2,963 $ 3,005
Schedule of cash and cash equivalents	The following table provides a reconciliation between cash and cash equivalents on the consolidated balance sheets and the consolidated statements of cash flows: (In millions) September 30, 2024 December 31, 2023 September 30, 2023 Cash and cash equivalents on the consolidated balance sheets $ 1,228 $ 1,204 $ 1,349 Cash and cash equivalents included in settlement assets 2,243 1,756 1,653 Other restricted cash 2 3 3 Total cash and cash equivalents on the consolidated statements of cash flows $ 3,473 $ 2,963 $ 3,005
Deferred costs, capitalized, prepaid, and other assets disclosure	Prepaid expenses and other current assets consisted of the following: (In millions) September 30, 2024 December 31, 2023 Prepaid maintenance, postage and insurance $ 235 $ 187 Other prepaid expenses 228 236 Total prepaid expenses (1) 463 423 Income tax receivables (2) 113 534 Clover Capital cash advances, net 313 269 Settlement advance cash payments 1,082 381 Other current assets 778 737 Total other current assets 2,286 1,921 Total prepaid expenses and other current assets $ 2,749 $ 2,344 (1) Prepaid expenses represent advance payments for goods and services to be consumed in the future. (2) Includes receivables associated with transferable federal tax credits (see Note 15).
Schedule of interest expense, net	Interest expense, net consisted of the following: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Interest expense $ (339) $ (268) $ (904) $ (715) Interest income 13 10 32 23 Interest expense, net $ (326) $ (258) $ (872) $ (692)

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Disaggregation of revenue	The table below presents the Company’s revenue disaggregated by business line, including a reconciliation with its reportable segments. The Company’s disaggregation of revenue for the three and nine months ended September 30, 2023 has been recast to reflect the Segment Realignment. The Company serves its global client base by working among its geographic teams across various regions, including the U.S. and Canada; Europe, Middle East and Africa (“EMEA”); Latin America (“LATAM”); and Asia Pacific (“APAC”). The majority of the Company’s revenue is earned domestically, with revenue generated within its EMEA, LATAM and APAC regions comprising approximately 15% of total revenue for each of the three months ended September 30, 2024 and 2023, and 15% and 14% of total revenue for the nine months ended September 30, 2024 and 2023, respectively. (In millions) Three Months Ended September 30, Nine Months Ended September 30, Revenue by Business Line 2024 2023 2024 2023 Small Business $ 1,627 $ 1,492 $ 4,719 $ 4,201 Enterprise 558 478 1,563 1,410 Processing 284 289 850 850 Total Merchant segment revenue $ 2,469 $ 2,259 $ 7,132 $ 6,461 Digital Payments $ 987 $ 940 $ 2,894 $ 2,724 Issuing 789 756 2,316 2,217 Banking 636 606 1,866 1,829 Total Financial segment revenue $ 2,412 $ 2,302 $ 7,076 $ 6,770 Corporate and Other $ 334 $ 312 $ 997 $ 945 Total Revenue $ 5,215 $ 4,873 $ 15,205 $ 14,176
Contract with customer, asset and liabilities	The following table provides information about contract assets and contract liabilities from contracts with customers: (In millions) September 30, 2024 December 31, 2023 Contract assets $ 821 $ 754 Contract liabilities 1,025 1,011
Schedule of remaining performance obligations	The following table includes estimated processing and services revenue expected to be recognized in the future related to performance obligations that were unsatisfied (or partially unsatisfied) at September 30, 2024: (In millions) Year Ending December 31, Remainder of 2024 $ 632 2025 2,283 2026 1,739 2027 1,226 Thereafter 1,412

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of intangible assets by class	Identifiable intangible assets consisted of the following: (In millions) Gross Accumulated Net Book September 30, 2024 Customer relationships $ 14,662 $ 8,444 $ 6,218 Acquired software and technology 1,951 1,120 831 Trade names 641 400 241 Purchased software 1,036 535 501 Capitalized software and other intangibles 3,863 1,332 2,531 Total $ 22,153 $ 11,831 $ 10,322 December 31, 2023 Customer relationships $ 14,669 $ 7,594 $ 7,075 Acquired software and technology 2,148 1,148 1,000 Trade names 641 356 285 Purchased software 1,087 520 567 Capitalized software and other intangibles 3,356 1,073 2,283 Total $ 21,901 $ 10,691 $ 11,210

Derivatives and Hedging Instr_2

Derivatives and Hedging Instruments (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of notional amounts of outstanding derivative positions	The aggregate notional amount of the fixed-to-fixed cross-currency rate swap contracts were as follows: (In millions) September 30, 2024 December 31, 2023 Currency Euros 475 400 Singapore Dollars 841 751 Canadian Dollars 253 — The aggregate notional amount of the fixed-to-fixed cross-currency rate swap contracts were as follows: (In millions) September 30, 2024 December 31, 2023 Currency British Pounds 525 525 Euros 157 157
Schedule of net investment hedges in accumulated other comprehensive income (loss)	Foreign currency transaction gains (losses), net of income tax, related to net investment hedges that were recorded as foreign currency translation within other comprehensive income (loss) in the consolidated statements of comprehensive income were as follows: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Cross-currency rate swap contracts $ (33) $ 4 $ (17) $ (3) Foreign currency-denominated debt (134) 123 (33) 9

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of fair value, assets and liabilities measured on recurring basis	Assets and liabilities measured at fair value on a recurring basis consisted of the following: Fair Value (In millions) Classification Fair Value Hierarchy September 30, December 31, Assets Forward exchange contracts designated as cash flow hedges Prepaid expenses and other current assets Level 2 $ 1 $ 2 Cross-currency rate swap contract designated as fair value hedge Prepaid expenses and other current assets Level 2 31 — Cross-currency rate swap contract designated as fair value hedge Other long-term assets Level 2 — 3 Liabilities Cross-currency rate swap contracts designated as fair value hedges Accounts payable and other current liabilities Level 2 $ 2 $ — Cross-currency rate swap contracts designated as net investment hedges Accounts payable and other current liabilities Level 2 27 — Cross-currency rate swap contracts designated as fair value hedges Other long-term liabilities Level 2 2 1 Cross-currency rate swap contracts designated as net investment hedges Other long-term liabilities Level 2 57 61 Contingent consideration Accounts payable and other current liabilities Level 3 — 2 Obligation to purchase redeemable noncontrolling interest Accounts payable and other current liabilities Level 3 95 — Contingent debt guarantee Other long-term liabilities Level 3 17 23

Accounts Payable and Other Cu_2

Accounts Payable and Other Current Liabilities (Tables)	9 Months Ended
	Sep. 30, 2024
Payables and Accruals [Abstract]
Schedule of accounts payable and accrued expenses	Accounts payable and other current liabilities consisted of the following: (In millions) September 30, 2024 December 31, 2023 Trade accounts payable $ 483 $ 449 Client deposits 984 931 Transferable federal tax credits (see Note 15) 337 804 Accrued compensation and benefits 303 344 Accrued taxes 267 203 Accrued interest 183 298 Accrued payment network fees 276 232 Operating lease liabilities 109 118 Accrued professional fees 114 96 Obligation to purchase redeemable noncontrolling interest (see Note 11) 95 — Other accrued expenses 1,010 880 Total $ 4,161 $ 4,355

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Schedule of debt, net of discounts and debt issuance costs	The Company’s debt consisted of the following: (In millions) September 30, 2024 December 31, 2023 Short-term and current maturities of long-term debt: Foreign lines of credit $ 868 $ 442 Finance lease and other financing obligations 332 313 Total short-term and current maturities of long-term debt $ 1,200 $ 755 Long-term debt: 2.750% senior notes due July 2024 $ — $ 2,000 3.850% senior notes due June 2025 900 900 2.250% senior notes due July 2025 (British Pound-denominated) 704 672 3.200% senior notes due July 2026 2,000 2,000 5.150% senior notes due March 2027 750 — 2.250% senior notes due June 2027 1,000 1,000 1.125% senior notes due July 2027 (Euro-denominated) 559 555 5.450% senior notes due March 2028 900 900 5.375% senior notes due August 2028 700 700 4.200% senior notes due October 2028 1,000 1,000 3.500% senior notes due July 2029 3,000 3,000 4.750% senior notes due March 2030 850 — 2.650% senior notes due June 2030 1,000 1,000 1.625% senior notes due July 2030 (Euro-denominated) 559 555 5.350% senior notes due March 2031 500 — 4.500% senior notes due May 2031 (Euro-denominated) 894 889 3.000% senior notes due July 2031 (British Pound-denominated) 704 672 5.600% senior notes due March 2033 900 900 5.625% senior notes due August 2033 1,300 1,300 5.450% senior notes due March 2034 750 — 5.150% senior notes due August 2034 900 — 4.400% senior notes due July 2049 2,000 2,000 U.S. dollar commercial paper notes 317 418 Euro commercial paper notes 1,329 1,321 Revolving credit facility 70 74 Unamortized discount and deferred financing costs (160) (145) Finance lease and other financing obligations 659 652 Total long-term debt $ 24,085 $ 22,363
Schedule of short-term debt	The following table provides a summary of the outstanding borrowings and weighted average interest rates of the Company’s foreign lines of credit and other borrowing arrangements by country: Outstanding Borrowings (in millions) Weighted-Average Interest Rate September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Argentina $ 635 $ 208 43.775 % 121.581 % Brazil 109 123 11.663 % 13.500 % Uruguay 52 55 10.061 % 11.125 % Other 72 56 5.061 % 4.912 % Total $ 868 $ 442 34.503 % 63.060 %

Redeemable Noncontrolling Int_2

Redeemable Noncontrolling Interest (Tables)	9 Months Ended
	Sep. 30, 2024
Noncontrolling Interest [Abstract]
Schedule of redeemable noncontrolling interests activity	The following table presents a summary of the redeemable noncontrolling interest activity during the nine months ended September 30: (In millions) 2024 2023 Balance at beginning of period $ 161 $ 161 Distributions paid to redeemable noncontrolling interest (13) (19) Share of income 13 19 Adjustment to estimated redemption value of redeemable noncontrolling interest (66) — Reclassification to current liability (95) — Balance at end of period $ — $ 161

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Schedule of stockholders equity	The following tables provide changes in equity during the three and nine months ended September 30, 2024 and 2023: Fiserv, Inc. Shareholders’ Equity Three Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Noncontrolling Interests Total Equity Balance at June 30, 2024 784 207 $ 8 $ 23,014 $ (1,197) $ 22,073 $ (15,744) $ 624 $ 28,778 Net income 564 7 571 Other comprehensive income 241 21 262 Share-based compensation 88 88 Shares issued under stock plans (1) (99) 64 (35) Purchases of treasury stock 8 (1,261) (1,261) Balance at September 30, 2024 784 214 $ 8 $ 23,003 $ (956) $ 22,637 $ (16,941) $ 652 $ 28,403 Fiserv, Inc. Shareholders’ Equity Three Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Total Equity Noncontrolling Interests Balance at June 30, 2023 784 173 $ 8 $ 22,988 $ (900) $ 18,622 $ (10,727) $ 725 $ 30,716 Net income (1) 952 11 963 Distributions paid to noncontrolling interests (2) (2) (2) Acquisition of noncontrolling interest of consolidated subsidiary (3) 6 (65) (59) Other comprehensive loss (266) (17) (283) Share-based compensation 76 76 Shares issued under stock plans (14) 19 5 Purchases of treasury stock 9 (1,191) (1,191) Balance at September 30, 2023 784 182 $ 8 $ 23,056 $ (1,166) $ 19,574 $ (11,899) $ 652 $ 30,225 (1) The total net income presented in equity for the three months ended September 30, 2023 is different than the amount presented in the consolidated statement of income due to the net income attributable to redeemable noncontrolling interest of $6 million not included in equity. (2) The total distributions presented in equity for the three months ended September 30, 2023 excludes $6 million in distributions paid to redeemable noncontrolling interest not included in equity. (3) The Company acquired the remaining 49% ownership interest in European Merchant Services B.V., a Netherlands-based merchant acceptance business, during the three months ended September 30, 2023. The Company previously held a majority controlling financial interest in this consolidated subsidiary. Fiserv, Inc. Shareholders’ Equity Nine Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Noncontrolling Interests Total Equity Balance at December 31, 2023 784 190 $ 8 $ 23,103 $ (783) $ 20,444 $ (12,915) $ 651 $ 30,508 Net income (1) 2,193 26 2,219 Distributions paid to noncontrolling interests (2) (28) (28) Change in estimated redemption value of redeemable noncontrolling interest (see Note 11) 66 66 Other comprehensive (loss) income (173) 3 (170) Share-based compensation 273 273 Shares issued under stock plans (4) (439) 261 (178) Purchases of treasury stock 28 (4,287) (4,287) Balance at September 30, 2024 784 214 $ 8 $ 23,003 $ (956) $ 22,637 $ (16,941) $ 652 $ 28,403 (1) The total net income presented in equity for the nine months ended September 30, 2024 is different than the amount presented in the consolidated statement of income due to the net income attributable to redeemable noncontrolling interest of $13 million not included in equity. (2) The total distributions presented in equity for the nine months ended September 30, 2024 excludes $13 million in distributions paid to redeemable noncontrolling interest not included in equity. Fiserv, Inc. Shareholders’ Equity Nine Months Ended Number of Shares Amount (In millions) Common Shares Treasury Shares Common Stock Additional Accumulated Retained Treasury Stock Total Equity Noncontrolling Interests Balance at December 31, 2022 784 154 $ 8 $ 23,011 $ (1,189) $ 17,376 $ (8,378) $ 699 $ 31,527 Net income (1) 2,198 23 2,221 Distributions paid to noncontrolling interests (2) (3) (3) Acquisition of noncontrolling interest of consolidated subsidiary (3) 6 (65) (59) Other comprehensive income (loss) 23 (2) 21 Share-based compensation 275 275 Shares issued under stock plans (3) (236) 163 (73) Purchases of treasury stock 31 (3,684) (3,684) Balance at September 30, 2023 784 182 $ 8 $ 23,056 $ (1,166) $ 19,574 $ (11,899) $ 652 $ 30,225 (1) The total net income presented in equity for the nine months ended September 30, 2023 is different than the amount presented in the consolidated statement of income due to the net income attributable to redeemable noncontrolling interest of $19 million not included in equity. (2) The total distributions presented in equity for the nine months ended September 30, 2023 excludes $19 million in distributions paid to redeemable noncontrolling interest not included in equity. (3) The Company acquired the remaining 49% ownership interest in European Merchant Services B.V., a Netherlands-based merchant acceptance business, during the nine months ended September 30, 2023. The Company previously held a majority controlling financial interest in this consolidated subsidiary.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Changes in accumulated other comprehensive loss by component, net of income taxes	Changes in accumulated other comprehensive loss by component, net of income taxes, consisted of the following: (In millions) Derivatives Foreign Pension Plans Total Three Months Ended September 30, 2024 Balance at June 30, 2024 $ (72) $ (1,029) $ (96) $ (1,197) Other comprehensive income (loss) before reclassifications (6) 245 — 239 Amounts reclassified from accumulated other comprehensive loss 2 — — 2 Net current-period other comprehensive income (loss) (4) 245 — 241 Balance at September 30, 2024 $ (76) $ (784) $ (96) $ (956) Three Months Ended September 30, 2023 Balance at June 30, 2023 $ (91) $ (789) $ (20) $ (900) Other comprehensive income (loss) before reclassifications 5 (286) — (281) Amounts reclassified from accumulated other comprehensive loss 5 10 — 15 Net current-period other comprehensive income (loss) 10 (276) — (266) Balance at September 30, 2023 $ (81) $ (1,065) $ (20) $ (1,166) Nine Months Ended September 30, 2024 Balance at December 31, 2023 $ (78) $ (688) $ (17) $ (783) Other comprehensive loss before reclassifications (see Note 1) (4) (96) (79) (179) Amounts reclassified from accumulated other comprehensive loss 6 — — 6 Net current-period other comprehensive income (loss) 2 (96) (79) (173) Balance at September 30, 2024 $ (76) $ (784) $ (96) $ (956) Nine Months Ended September 30, 2023 Balance at December 31, 2022 $ (103) $ (1,064) $ (22) $ (1,189) Other comprehensive income (loss) before reclassifications 11 (11) 2 2 Amounts reclassified from accumulated other comprehensive loss 11 10 — 21 Net current-period other comprehensive income (loss) 22 (1) 2 23 Balance at September 30, 2023 $ (81) $ (1,065) $ (20) $ (1,166)

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
Summary of restricted stock and performance activity	A summary of restricted stock unit, restricted stock award and performance share unit activity during the nine months ended September 30, 2024 is as follows: Restricted Stock Units and Awards Performance Share Units Shares Weighted-Average Grant Date Fair Value Shares Weighted-Average Grant Date Fair Value Units and awards - December 31, 2023 5,419 $ 103.11 3,219 $ 104.09 Granted 2,243 149.78 334 173.06 Forfeited (333) 119.63 (512) 102.44 Vested (2,446) 103.54 (1,052) 102.06 Units and awards - September 30, 2024 4,883 $ 123.04 1,989 $ 115.23
Summary of stock option activity	A summary of stock option activity during the nine months ended September 30, 2024 is as follows: Shares Weighted-Average Exercise Price Weighted-Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (In millions) Stock options outstanding - December 31, 2023 3,865 $ 72.36 Granted — — Forfeited (10) 108.15 Exercised (2,153) 58.48 Stock options outstanding - September 30, 2024 1,702 $ 89.69 4.33 $ 153 Stock options exercisable - September 30, 2024 1,702 $ 89.69 4.33 $ 153

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Schedule of income tax provision and effective income tax rate	The Company’s income tax provision and effective income tax rate were as follows: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Income tax provision $ 74 $ 239 $ 448 $ 544 Effective income tax rate 5.8 % 19.8 % 13.5 % 19.5 %

Shares Used in Computing Net _2

Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Computation of shares used in calculating basic and diluted net income per common share	The computation of shares used in calculating basic and diluted net income per share is as follows: Three Months Ended Nine Months Ended (In millions) 2024 2023 2024 2023 Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - basic 573.7 606.2 582.5 616.2 Common stock equivalents 3.2 4.1 3.2 4.1 Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share - diluted 576.9 610.3 585.7 620.3

Cash Flow Information (Tables)

Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2024
Supplemental Cash Flow Elements [Abstract]
Schedule of supplemental cash flow information	Supplemental cash flow information consisted of the following: Nine Months Ended (In millions) 2024 2023 Interest paid $ 983 $ 703 Net income taxes paid 1,015 966 Treasury stock purchases settled after the balance sheet date 39 6 Software obtained under financing arrangements 96 175 Right-of-use assets obtained in exchange for lease liabilities - operating leases 74 69 Right-of-use assets obtained in exchange for lease liabilities - finance leases 197 242

Business Segment Information (T

Business Segment Information (Tables)	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Schedule of segment reporting information	Operating results for each segment were as follows: Reportable Segments (In millions) Merchant Financial Corporate Total Three Months Ended September 30, 2024 Processing and services revenue $ 2,198 $ 2,036 $ 3 $ 4,237 Product revenue 271 376 331 978 Total revenue $ 2,469 $ 2,412 $ 334 $ 5,215 Operating income (loss) $ 931 $ 1,143 $ (472) $ 1,602 Three Months Ended September 30, 2023 Processing and services revenue $ 1,971 $ 2,032 $ 5 $ 4,008 Product revenue 288 270 307 865 Total revenue $ 2,259 $ 2,302 $ 312 $ 4,873 Operating income (loss) $ 786 $ 1,079 $ (362) $ 1,503 Nine Months Ended September 30, 2024 Processing and services revenue $ 6,340 $ 6,024 $ 13 $ 12,377 Product revenue 792 1,052 984 2,828 Total revenue $ 7,132 $ 7,076 $ 997 $ 15,205 Operating income (loss) $ 2,582 $ 3,244 $ (1,615) $ 4,211 Nine Months Ended September 30, 2023 Processing and services revenue $ 5,638 $ 5,949 $ 18 $ 11,605 Product revenue 823 821 927 2,571 Total revenue $ 6,461 $ 6,770 $ 945 $ 14,176 Operating income (loss) $ 2,123 $ 3,050 $ (1,605) $ 3,568

Basis of Presentation and Sum_4

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Cash and cash equivalents on the consolidated balance sheets	$ 1,228	$ 1,204	$ 1,349
Cash and cash equivalents included in settlement assets	2,243	1,756	1,653
Other restricted cash	2	3	3
Total cash and cash equivalents on the consolidated statements of cash flows	$ 3,473	$ 2,963	$ 3,005	$ 3,192

Basis of Presentation and Sum_5

Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended			9 Months Ended
	Mar. 31, 2024	Dec. 31, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Business Acquisition [Line Items]
Allowance for doubtful accounts			$ 72,000,000		$ 72,000,000		$ 86,000,000
Accumulated impairment loss			0		0
Equity securities without a readily determinable fair value			137,000,000		137,000,000		156,000,000
Foreign currency translation loss			22,000,000	$ 38,000,000	75,000,000	$ 88,000,000
Defined benefit plan, actuarial loss, immediate recognition as component in net periodic benefit (cost) credit	$ 63,000,000
Forecast
Business Acquisition [Line Items]
Defined benefit plan, cost of providing special and contractual termination benefits		$ 20,000,000
Pension and other postretirement benefits expense (reversal of expense), noncash		$ 140,000,000
Merchants Utilizing Clover Capital Cash Advance Program
Business Acquisition [Line Items]
Cash advances			326,000,000		326,000,000		281,000,000
Allowance for credit loss, current			13,000,000		13,000,000		12,000,000
Merchant credit losses
Business Acquisition [Line Items]
Aggregate merchant credit loss expense			24,000,000	$ 25,000,000	77,000,000	$ 62,000,000
Collateral held			666,000,000		666,000,000		690,000,000
Loss contingency accrual			$ 38,000,000		$ 38,000,000		$ 36,000,000

Basis of Presentation and Sum_6

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Prepaid Expenses and Other Current Assets [Line Items]
Prepaid maintenance, postage and insurance	$ 235	$ 187
Other prepaid expenses	228	236
Total prepaid expenses	463	423
Net income tax receivables	113	534
Other current assets	778	737
Total other current assets	2,286	1,921
Total prepaid expenses and other current assets	2,749	2,344
Clover Capital
Prepaid Expenses and Other Current Assets [Line Items]
Cash advances	313	269
Foreign Banks and Alliance Partners
Prepaid Expenses and Other Current Assets [Line Items]
Cash advances	$ 1,082	$ 381

Basis of Presentation and Sum_7

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Interest Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accounting Policies [Abstract]
Interest expense	$ (339)	$ (268)	$ (904)	$ (715)
Interest income	13	10	32	23
Interest expense, net	$ (326)	$ (258)	$ (872)	$ (692)

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 5,215	$ 4,873	$ 15,205	$ 14,176
Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	2,469	2,259	7,132	6,461
Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	2,412	2,302	7,076	6,770
Corporate and Other
Disaggregation of Revenue [Line Items]
Revenue	$ 334	$ 312	$ 997	$ 945
Geographic Concentration Risk | Non-US | Revenue from Contract with Customer Benchmark
Disaggregation of Revenue [Line Items]
Percentage of concentration risk	15%	15%	15%	14%
Small Business | Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	$ 1,627	$ 1,492	$ 4,719	$ 4,201
Enterprise | Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	558	478	1,563	1,410
Processing | Operating segments | Merchant Segment
Disaggregation of Revenue [Line Items]
Revenue	284	289	850	850
Digital Payments | Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	987	940	2,894	2,724
Issuing | Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	789	756	2,316	2,217
Banking | Operating segments | Financial Segment
Disaggregation of Revenue [Line Items]
Revenue	$ 636	$ 606	$ 1,866	$ 1,829

Revenue Recognition - Contract

Revenue Recognition - Contract with Customer, Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Contract assets	$ 821	$ 754
Contract liabilities	$ 1,025	$ 1,011

Revenue Recognition - Revenue R

Revenue Recognition - Revenue Recognized (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Revenue from Contract with Customer [Abstract]
Revenue recognized which was included in the contract liability balance	$ 659

Revenue Recognition - Remaining

Revenue Recognition - Remaining Performance Obligation (Details) $ in Millions	Sep. 30, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 632
Performance obligations expected to be satisfied, expected timing	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 2,283
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 1,739
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 1,226
Performance obligations expected to be satisfied, expected timing	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied	$ 1,412
Performance obligations expected to be satisfied, expected timing

Acquisitions and Dispositions (

Acquisitions and Dispositions (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
	Nov. 01, 2023	Jul. 25, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Business Acquisition [Line Items]
Tax expense			$ 74	$ 239	$ 448	$ 544
Disposal Group, Disposed of by Sale | Financial Reconciliation Business
Business Acquisition [Line Items]
Net proceeds from sale of businesses and other assets		$ 232
Gain (loss) on disposition of business				177
Tax expense				49
Disposal group, including discontinued operation, goodwill				38		38
Disposal group, including discontinued operation, trade receivable and capitalized software				$ 13		$ 13
Skytef and Sled
Business Acquisition [Line Items]
Payments for acquisitions of businesses	$ 17

Intangible Assets - Schedule of

Intangible Assets - Schedule of Intangible Assets by Class (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 22,153		$ 22,153		$ 21,901
Accumulated Amortization	11,831		11,831		10,691
Net Book Value	10,322		10,322		11,210
Amortization of intangible assets	566	$ 579	1,700	$ 1,800
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14,662		14,662		14,669
Accumulated Amortization	8,444		8,444		7,594
Net Book Value	6,218		6,218		7,075
Acquired software and technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,951		1,951		2,148
Accumulated Amortization	1,120		1,120		1,148
Net Book Value	831		831		1,000
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	641		641		641
Accumulated Amortization	400		400		356
Net Book Value	241		241		285
Purchased software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,036		1,036		1,087
Accumulated Amortization	535		535		520
Net Book Value	501		501		567
Capitalized software and other intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,863		3,863		3,356
Accumulated Amortization	1,332		1,332		1,073
Net Book Value	$ 2,531		$ 2,531		$ 2,283

Investments in Unconsolidated_2

Investments in Unconsolidated Affiliates (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Investments in and Advances to Affiliates [Line Items]
Other than temporary impairment losses, investments	$ 570		$ 570
Investments in unconsolidated affiliates	1,585		1,585		$ 2,262
Equity securities without a readily determinable fair value	137		137		156
Equity securities without readily determinable fair value, upward price adjustment, annual amount	$ 2	$ 0	$ 29	$ 0
Wells Fargo Merchant Services (WFMS)
Investments in and Advances to Affiliates [Line Items]
Percentage of interest owned in affiliate	40%		40%
Other than temporary impairment losses, investments	$ 570
Banc of America Merchant Services
Investments in and Advances to Affiliates [Line Items]
Investments in unconsolidated affiliates	$ 1,300		$ 1,300		$ 1,900

Derivatives and Hedging Instr_3

Derivatives and Hedging Instruments - Narrative (Details) € in Millions, $ in Millions, $ in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 EUR (€)	Sep. 30, 2024 SGD ($)	Sep. 30, 2024 CAD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)	Dec. 31, 2023 SGD ($)	Dec. 31, 2023 CAD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Estimate of gains (losses) related to foreign currency exchange contracts during the next 12 months	$ 1		$ 1
Accumulated other comprehensive loss	956		956					$ 783
Estimated interest expense related to settled interest rate hedge contracts during the next twelve months	13		13
Foreign currency translation adjustment, tax	(56)	$ 42	(17)	$ 2
Change in fair value of cross-currency rate swaps	$ (33)		$ (33)
2.250% senior notes due July 2025 (British Pound-denominated) | Senior Notes
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Debt instrument, interest rate	2.25%		2.25%		2.25%	2.25%	2.25%
Net Investment Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount					€ 475	$ 841	$ 253		€ 400	$ 751	$ 0
Foreign currency translation adjustment, tax	$ 56	$ (42)	$ 17	$ (2)
Foreign currency forward exchange contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	451		451					443
Treasury Lock
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Accumulated other comprehensive loss	$ 105		$ 105					$ 116

Derivatives and Hedging Instr_4

Derivatives and Hedging Instruments - Schedule of Notional Amount of Cross Currency Rate Swaps (Details) € in Millions, £ in Millions, $ in Millions, $ in Millions	Sep. 30, 2024 EUR (€)	Sep. 30, 2024 SGD ($)	Sep. 30, 2024 CAD ($)	Sep. 30, 2024 GBP (£)	Dec. 31, 2023 EUR (€)	Dec. 31, 2023 SGD ($)	Dec. 31, 2023 CAD ($)	Dec. 31, 2023 GBP (£)
Net Investment Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivatives	€ 475	$ 841	$ 253		€ 400	$ 751	$ 0
Fair Value Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivatives	€ 157			£ 525	€ 157			£ 525

Derivatives and Hedging Instr_5

Derivatives and Hedging Instruments - Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) (Details) - Net Investment Hedging - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Cross-currency rate swap contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign currency translation	$ (33)	$ 4	$ (17)	$ (3)
Foreign currency-denominated debt
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign currency translation	$ (134)	$ 123	$ (33)	$ 9

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured at Fair Value On a Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligation to purchase redeemable noncontrolling interest	$ 95	$ 0
Fair Value, Recurring | Level 2 | Prepaid expenses and other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Forward exchange contracts designated as cash flow hedges	1	2
Cross-currency rate swap contract designated as fair value hedge	31	0
Fair Value, Recurring | Level 2 | Other long-term assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency rate swap contract designated as fair value hedge	0	3
Fair Value, Recurring | Level 2 | Accounts payable and accrued expenses | Fair Value Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency rate swap contract	2	0
Fair Value, Recurring | Level 2 | Accounts payable and accrued expenses | Net Investment Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency rate swap contract	27	0
Fair Value, Recurring | Level 2 | Other long-term liabilities | Fair Value Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency rate swap contract	2	1
Fair Value, Recurring | Level 2 | Other long-term liabilities | Net Investment Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency rate swap contract	57	61
Fair Value, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	0	2
Obligation to purchase redeemable noncontrolling interest	95	0
Contingent debt guarantee	$ 17	$ 23

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Revolving Credit Facility | Line of Credit
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum borrowing capacity	$ 6,000		$ 6,000
Revolving Credit Facility | Variable-Rate Revolving Credit Facilities Due April 2027 | Line of Credit | Lending Joint Ventures
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum borrowing capacity	83		83
Term Loan Facilities | Variable-Rate Term Loan Facilities Due April 2027 | Line of Credit | Lending Joint Ventures
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum borrowing capacity	426		426
Long-term debt	20		20
Carrying value
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total debt	24,300		24,300		$ 22,200
Level 2 | Fair value
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total debt	24,100		24,100		21,600
Financial Guarantee
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying value of non-contingent liability	509		509
Financial Guarantee | Lending Joint Ventures
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Carrying value of non-contingent liability	24		24		$ 31
Other (expense) income	$ 4	$ 2	$ 13	$ 7

Accounts Payable and Other Cu_3

Accounts Payable and Other Current Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Trade accounts payable	$ 483	$ 449
Client deposits	984	931
Transferrable federal tax credits	337	804
Accrued compensation and benefits	303	344
Accrued taxes	267	203
Accrued interest	183	298
Accrued payment network fees	276	232
Operating lease liabilities	109	118
Accrued professional fees	114	96
Obligation to purchase redeemable noncontrolling interest	95	0
Other accrued expenses	1,010	880
Total	$ 4,161	$ 4,355

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2024	Aug. 12, 2024	Mar. 04, 2024	Dec. 31, 2023
Short-term and current maturities of long-term debt:
Total short-term and current maturities of long-term debt	$ 1,200			$ 755
Finance lease and other financing obligations	332			313
Long-term debt:
Unamortized discount and deferred financing costs	(160)			(145)
Finance lease and other financing obligations	659			652
Total long-term debt	$ 24,085			22,363
Senior Notes | 2.750% senior notes due July 2024
Debt Instrument [Line Items]
Interest rate, stated percentage	2.75%		2.75%
Long-term debt:
Long-term debt	$ 0			2,000
Senior Notes | 3.850% senior notes due June 2025
Debt Instrument [Line Items]
Interest rate, stated percentage	3.85%
Long-term debt:
Long-term debt	$ 900			900
Senior Notes | 2.250% senior notes due July 2025 (British Pound-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.25%
Long-term debt:
Long-term debt	$ 704			672
Senior Notes | 3.200% senior notes due July 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	3.20%
Long-term debt:
Long-term debt	$ 2,000			2,000
Senior Notes | 5.150% senior notes due March 2027
Debt Instrument [Line Items]
Interest rate, stated percentage	5.15%		5.15%
Long-term debt:
Long-term debt	$ 750			0
Senior Notes | 2.250% senior notes due June 2027
Debt Instrument [Line Items]
Interest rate, stated percentage	2.25%
Long-term debt:
Long-term debt	$ 1,000			1,000
Senior Notes | 1.125% senior notes due July 2027 (Euro-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	1.125%
Long-term debt:
Long-term debt	$ 559			555
Senior Notes | 5.450% senior notes due March 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	5.45%
Long-term debt:
Long-term debt	$ 900			900
Senior Notes | 5.375% senior notes due August 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	5.375%
Long-term debt:
Long-term debt	$ 700			700
Senior Notes | 4.200% senior notes due October 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	4.20%
Long-term debt:
Long-term debt	$ 1,000			1,000
Senior Notes | 3.500% senior notes due July 2029
Debt Instrument [Line Items]
Interest rate, stated percentage	3.50%
Long-term debt:
Long-term debt	$ 3,000			3,000
Senior Notes | 4.750% senior notes due March 2030
Debt Instrument [Line Items]
Interest rate, stated percentage	4.75%	4.75%
Long-term debt:
Long-term debt	$ 850			0
Senior Notes | 2.650% senior notes due June 2030
Debt Instrument [Line Items]
Interest rate, stated percentage	2.65%
Long-term debt:
Long-term debt	$ 1,000			1,000
Senior Notes | 1.625% senior notes due July 2030 (Euro-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	1.625%
Long-term debt:
Long-term debt	$ 559			555
Senior Notes | 5.350% senior notes due March 2031
Debt Instrument [Line Items]
Interest rate, stated percentage	5.35%		5.35%
Long-term debt:
Long-term debt	$ 500			0
Senior Notes | 4.500% senior notes due May 2031 (Euro-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.50%
Long-term debt:
Long-term debt	$ 894			889
Senior Notes | 3.000% senior notes due July 2031 (British Pound-denominated)
Debt Instrument [Line Items]
Interest rate, stated percentage	3%
Long-term debt:
Long-term debt	$ 704			672
Senior Notes | 5.600% senior notes due March 2033
Debt Instrument [Line Items]
Interest rate, stated percentage	5.60%
Long-term debt:
Long-term debt	$ 900			900
Senior Notes | 5.625% senior notes due August 2033
Debt Instrument [Line Items]
Interest rate, stated percentage	5.625%
Long-term debt:
Long-term debt	$ 1,300			1,300
Senior Notes | 5.450% senior notes due March 2034
Debt Instrument [Line Items]
Interest rate, stated percentage	5.45%		5.45%
Long-term debt:
Long-term debt	$ 750			0
Senior Notes | 5.150% senior notes due August 2034
Debt Instrument [Line Items]
Interest rate, stated percentage	5.15%	5.15%
Long-term debt:
Long-term debt	$ 900			0
Senior Notes | 4.400% senior notes due July 2049
Debt Instrument [Line Items]
Interest rate, stated percentage	4.40%
Long-term debt:
Long-term debt	$ 2,000			2,000
Commercial Paper | U.S. dollar commercial paper notes
Long-term debt:
Long-term debt	317			418
Commercial Paper | Euro commercial paper notes
Long-term debt:
Long-term debt	1,329			1,321
Line of Credit | Revolving credit facility
Long-term debt:
Long-term debt	70			74
Foreign lines of credit
Short-term and current maturities of long-term debt:
Total short-term and current maturities of long-term debt	$ 868			$ 442

Debt - Narrative (Details)

Debt - Narrative (Details) R$ in Millions, $ in Millions	1 Months Ended	9 Months Ended
	Feb. 29, 2024	Sep. 30, 2024 USD ($)	Sep. 30, 2024 BRL (R$)	Aug. 12, 2024 USD ($)	Mar. 04, 2024 USD ($)	Dec. 31, 2023 USD ($)
Foreign lines of credit
Debt Instrument [Line Items]
Debt instrument, face amount		$ 95	R$ 514
Weighted-Average Interest Rate		34.503%	34.503%			63.06%
Basis spread on variable rate	1.25%
Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount				$ 1,750	$ 2,000
Senior Notes | 4.750% senior notes due March 2030
Debt Instrument [Line Items]
Debt instrument, face amount				$ 850
Debt instrument, interest rate		4.75%	4.75%	4.75%
Outstanding borrowings		$ 850				$ 0
Senior Notes | 5.150% senior notes due August 2034
Debt Instrument [Line Items]
Debt instrument, face amount				$ 900
Debt instrument, interest rate		5.15%	5.15%	5.15%
Outstanding borrowings		$ 900				0
Senior Notes | 5.150% senior notes due March 2027
Debt Instrument [Line Items]
Debt instrument, face amount					$ 750
Debt instrument, interest rate		5.15%	5.15%		5.15%
Outstanding borrowings		$ 750				0
Senior Notes | 5.350% senior notes due March 2031
Debt Instrument [Line Items]
Debt instrument, face amount					$ 500
Debt instrument, interest rate		5.35%	5.35%		5.35%
Outstanding borrowings		$ 500				0
Senior Notes | 5.450% senior notes due March 2034
Debt Instrument [Line Items]
Debt instrument, face amount					$ 750
Debt instrument, interest rate		5.45%	5.45%		5.45%
Outstanding borrowings		$ 750				0
Senior Notes | 2.750% senior notes due July 2024
Debt Instrument [Line Items]
Debt instrument, interest rate		2.75%	2.75%		2.75%
Outstanding borrowings		$ 0				2,000
Senior Notes | 3.850% senior notes due June 2025
Debt Instrument [Line Items]
Debt instrument, interest rate		3.85%	3.85%
Outstanding borrowings		$ 900				900
Senior Notes | 2.250% senior notes due July 2025 (British Pound-denominated)
Debt Instrument [Line Items]
Debt instrument, interest rate		2.25%	2.25%
Outstanding borrowings		$ 704				672
Commercial Paper | U.S. dollar commercial paper notes
Debt Instrument [Line Items]
Debt maturities (in days)		397 days
Outstanding borrowings		$ 317				$ 418
Weighted-Average Interest Rate		4.933%	4.933%			5.454%
Commercial Paper | Euro commercial paper notes
Debt Instrument [Line Items]
Debt maturities (in days)		183 days
Outstanding borrowings		$ 1,329				$ 1,321
Weighted-Average Interest Rate		3.629%	3.629%			4.029%
Revolving credit facility | Line of Credit
Debt Instrument [Line Items]
Outstanding borrowings		$ 70				$ 74
Weighted-Average Interest Rate		5.97%	5.97%			6.45%
Maximum borrowing capacity		$ 6,000
Outstanding borrowings		$ 70				$ 74
Debt instrument, covenant, debt-to-EBITDA ratio		3.75	3.75

Debt - Schedule of Foreign Line

Debt - Schedule of Foreign Lines of Credit by Country (Details) - Foreign lines of credit - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Outstanding Borrowings	$ 868	$ 442
Weighted-Average Interest Rate	34.503%	63.06%
Argentina
Debt Instrument [Line Items]
Outstanding Borrowings	$ 635	$ 208
Weighted-Average Interest Rate	43.775%	121.581%
Brazil
Debt Instrument [Line Items]
Outstanding Borrowings	$ 109	$ 123
Weighted-Average Interest Rate	11.663%	13.50%
Uruguay
Debt Instrument [Line Items]
Outstanding Borrowings	$ 52	$ 55
Weighted-Average Interest Rate	10.061%	11.125%
Other
Debt Instrument [Line Items]
Outstanding Borrowings	$ 72	$ 56
Weighted-Average Interest Rate	5.061%	4.912%

Redeemable Noncontrolling Int_3

Redeemable Noncontrolling Interest - Narrative (Details)	Sep. 30, 2024 noncontrolling_interest
First Data Joint Venture
Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owner	1%
First Data
Noncontrolling Interest [Line Items]
Number of redeemable noncontrolling interests	1

Redeemable Noncontrolling Int_4

Redeemable Noncontrolling Interest - Redeemable Noncontrolling Interest Activity (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance at beginning of period		$ 161	$ 161
Distributions paid to redeemable noncontrolling interest	$ (6)	(13)	(19)
Share of income		13	19
Adjustment to estimated redemption value of redeemable noncontrolling interest		(66)	0
Reclassification to current liability		(95)	0
Balance at end of period	$ 161	$ 0	$ 161

Equity (Details)

Equity (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
	Aug. 07, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury shares balance at beginning of period (in shares)				190
Balance at beginning of period		$ 28,778	$ 30,716	$ 30,508	$ 31,527
Net income (loss)		571	963	2,219	2,221
Distributions paid to noncontrolling interests			(2)	(28)	(3)
Acquisition of noncontrolling interest of consolidated subsidiary			(59)		(59)
Change in estimated redemption value of redeemable noncontrolling interest (see Note 11)				66	0
Other comprehensive income (loss)		262	(283)	(170)	21
Share-based compensation		88	76	273	275
Shares issued under stock plans		(35)	5	(178)	(73)
Purchases of treasury stock (in shares)	4.1
Purchases of treasury stock	$ (500)	$ (1,261)	(1,191)	$ (4,287)	(3,684)
Treasury shares balance at end of period (in shares)		214		214
Balance at end of period		$ 28,403	30,225	$ 28,403	30,225
Net income attributable to redeemable noncontrolling interest			6	13	19
Distributions paid to redeemable noncontrolling interests			$ 6	$ 13	$ 19
European Merchant Services B.V.
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Ownership percentage by noncontrolling owner			49%		49%
Common Shares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common shares balance at beginning of period (in shares)		784	784	784	784
Balance at beginning of period		$ 8	$ 8	$ 8	$ 8
Common shares balance at end of period (in shares)		784	784	784	784
Balance at end of period		$ 8	$ 8	$ 8	$ 8
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury shares balance at beginning of period (in shares)		207	173	190	154
Balance at beginning of period		$ (15,744)	$ (10,727)	$ (12,915)	$ (8,378)
Shares issued under stock plans (in shares)		(1)		(4)	(3)
Shares issued under stock plans		$ 64	$ 19	$ 261	$ 163
Purchases of treasury stock (in shares)		8	9	28	31
Purchases of treasury stock		$ (1,261)	$ (1,191)	$ (4,287)	$ (3,684)
Treasury shares balance at end of period (in shares)		214	182	214	182
Balance at end of period		$ (16,941)	$ (11,899)	$ (16,941)	$ (11,899)
Additional Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		23,014	22,988	23,103	23,011
Acquisition of noncontrolling interest of consolidated subsidiary			6		6
Change in estimated redemption value of redeemable noncontrolling interest (see Note 11)				66
Share-based compensation		88	76	273	275
Shares issued under stock plans		(99)	(14)	(439)	(236)
Balance at end of period		23,003	23,056	23,003	23,056
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		(1,197)	(900)	(783)	(1,189)
Other comprehensive income (loss)		241	(266)	(173)	23
Balance at end of period		(956)	(1,166)	(956)	(1,166)
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		22,073	18,622	20,444	17,376
Net income (loss)		564	952	2,193	2,198
Balance at end of period		22,637	19,574	22,637	19,574
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		624	725	651	699
Net income (loss)		7	11	26	23
Distributions paid to noncontrolling interests			(2)	(28)	(3)
Acquisition of noncontrolling interest of consolidated subsidiary			(65)		(65)
Other comprehensive income (loss)		21	(17)	3	(2)
Balance at end of period		$ 652	$ 652	$ 652	$ 652

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	$ 28,778	$ 30,716	$ 30,508	$ 31,527
Total other comprehensive (loss) income	262	(283)	(170)	21
Balance at end of period	28,403	30,225	28,403	30,225
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(1,197)	(900)	(783)	(1,189)
Other comprehensive income (loss) before reclassifications	239	(281)	(179)	2
Amounts reclassified from accumulated other comprehensive loss	2	15	6	21
Total other comprehensive (loss) income	241	(266)	(173)	23
Balance at end of period	(956)	(1,166)	(956)	(1,166)
Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(72)	(91)	(78)	(103)
Other comprehensive income (loss) before reclassifications	(6)	5	(4)	11
Amounts reclassified from accumulated other comprehensive loss	2	5	6	11
Total other comprehensive (loss) income	(4)	10	2	22
Balance at end of period	(76)	(81)	(76)	(81)
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(1,029)	(789)	(688)	(1,064)
Other comprehensive income (loss) before reclassifications	245	(286)	(96)	(11)
Amounts reclassified from accumulated other comprehensive loss	0	10	0	10
Total other comprehensive (loss) income	245	(276)	(96)	(1)
Balance at end of period	(784)	(1,065)	(784)	(1,065)
Pension Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(96)	(20)	(17)	(22)
Other comprehensive income (loss) before reclassifications	0	0	(79)	2
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Total other comprehensive (loss) income	0	0	(79)	2
Balance at end of period	$ (96)	$ (20)	$ (96)	$ (20)

Share-Based Compensation - Narr

Share-Based Compensation - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Share-based compensation expense	$ 88	$ 76	$ 273	$ 275
Unrecognized compensation cost	$ 412		$ 412
Weighted-average period unrecognized compensation cost will be recognized (in years)			1 year 10 months 24 days

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Restricted Stock and Performance Activity (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2024 $ / shares shares
Restricted Stock Units and Awards
Shares (In thousands)
Balance at beginning of period (in shares) | shares	5,419
Granted (in shares) | shares	2,243
Forfeited (in shares) | shares	(333)
Vested (in shares) | shares	(2,446)
Balance at end of period (in shares) | shares	4,883
Weighted-Average Grant Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 103.11
Granted (in dollars per share) | $ / shares	149.78
Forfeited (in dollars per share) | $ / shares	119.63
Vested (in dollars per share) | $ / shares	103.54
Balance at end of period (in dollars per share) | $ / shares	$ 123.04
Performance Share Units
Shares (In thousands)
Balance at beginning of period (in shares) | shares	3,219
Granted (in shares) | shares	334
Forfeited (in shares) | shares	(512)
Vested (in shares) | shares	(1,052)
Balance at end of period (in shares) | shares	1,989
Weighted-Average Grant Date Fair Value
Balance at beginning of period (in dollars per share) | $ / shares	$ 104.09
Granted (in dollars per share) | $ / shares	173.06
Forfeited (in dollars per share) | $ / shares	102.44
Vested (in dollars per share) | $ / shares	102.06
Balance at end of period (in dollars per share) | $ / shares	$ 115.23

Share-Based Compensation - Su_2

Share-Based Compensation - Summary of Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares
Shares
Stock options outstanding - balance at beginning of period (in shares) | shares	3,865
Granted (in shares) | shares	0
Forfeited (in shares) | shares	(10)
Exercised (in shares) | shares	(2,153)
Stock options outstanding - balance at end of period (in shares) | shares	1,702
Stock options exercisable (in shares) | shares	1,702
Weighted-Average Exercise Price
Stock options outstanding - balance at beginning of period (in dollars per shares) | $ / shares	$ 72.36
Granted (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	108.15
Exercised (in dollars per share) | $ / shares	58.48
Stock options outstanding - balance at end of period (in dollars per shares) | $ / shares	89.69
Stock options exercisable (in dollars per share) | $ / shares	$ 89.69
Weighted-Average Remaining Contractual Term (Years)
Stock options outstanding (in years)	4 years 3 months 29 days
Stock options exercisable (in years)	4 years 3 months 29 days
Aggregate Intrinsic Value (In millions)
Stock options outstanding | $	$ 153
Stock options exercisable | $	$ 153

Income Taxes - Income Tax Provi

Income Taxes - Income Tax Provision and Effective Income Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income tax provision	$ 74	$ 239	$ 448	$ 544
Effective income tax rate	5.80%	19.80%	13.50%	19.50%

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Effective income tax rate	5.80%	19.80%	13.50%	19.50%
Unrecognized tax benefits	$ 88		$ 88
Decrease in unrecognized tax benefits reasonably possible	5		5
Effective income tax rate reconciliation, nondeductible expense, impairment losses, amount	142		142
Noncash impairment charge, investments	$ 570		$ 570

Shares Used in Computing Net _3

Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. - Schedule of Weighted-Average Number of Shares (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share – basic (in shares)	573.7	606.2	582.5	616.2
Common stock equivalents (in shares)	3.2	4.1	3.2	4.1
Weighted-average common shares outstanding used for the calculation of net income attributable to Fiserv, Inc. per share – diluted (in shares)	576.9	610.3	585.7	620.3

Shares Used in Computing Net _4

Shares Used in Computing Net Income Per Share Attributable to Fiserv, Inc. - Narrative (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Earnings Per Share [Abstract]
Stock options excluded from the calculation of diluted weighted-average outstanding shares because their impact was anti-dilutive (in shares)	0	140,193	0	948,973

Cash Flow Information (Details)

Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Supplemental Cash Flow Elements [Abstract]
Interest paid	$ 983	$ 703
Net income taxes paid	1,015	966
Treasury stock purchases settled after the balance sheet date	39	6
Software obtained under financing arrangements	96	175
Right-of-use assets obtained in exchange for lease liabilities - operating leases	74	69
Right-of-use assets obtained in exchange for lease liabilities - finance leases	$ 197	$ 242

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Subscriber funds	$ 677	$ 3,500
Subsidiary Merchant Matters | Minimum
Loss Contingencies [Line Items]
Estimated range of exposure	0
Subsidiary Merchant Matters | Maximum
Loss Contingencies [Line Items]
Estimated range of exposure	110
First Data | First Data Subsidiary Merchant Matters
Loss Contingencies [Line Items]
Loss contingency accrual	$ 29	$ 32

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
	Aug. 07, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Feb. 22, 2023
Related Party Transaction [Line Items]
Processing, administrative, and other fees		$ 5,215	$ 4,873	$ 15,205	$ 14,176
Amounts due from unconsolidated merchant alliances		3,714		3,714		$ 3,582
Purchases of treasury stock (in shares)	4.1
Shares acquired, average cost per share (in dollars per share)	$ 121.98
Treasury stock, value, acquired, cost method	$ 500	1,261	1,191	4,287	3,684
Share repurchase program, authorized, number of shares (in shares)							75
Affiliated entities
Related Party Transaction [Line Items]
Processing, administrative, and other fees		36	$ 44	113	$ 135
Amounts due from unconsolidated merchant alliances		$ 26		$ 26		$ 38

Business Segment Information -

Business Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Revenue		$ 5,215	$ 4,873	$ 15,205	$ 14,176
Operating income (loss)		1,602	1,503	4,211	3,568
Corporate and Other
Segment Reporting Information [Line Items]
Revenue		334	312	997	945
Operating income (loss)		(472)	(362)	(1,615)	(1,605)
Merchant Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		2,469	2,259	7,132	6,461
Operating income (loss)		931	786	2,582	2,123
Financial Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		2,412	2,302	7,076	6,770
Operating income (loss)		1,143	1,079	3,244	3,050
Processing and services revenue
Segment Reporting Information [Line Items]
Revenue	[1]	4,237	4,008	12,377	11,605
Processing and services revenue | Corporate and Other
Segment Reporting Information [Line Items]
Revenue		3	5	13	18
Processing and services revenue | Merchant Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		2,198	1,971	6,340	5,638
Processing and services revenue | Financial Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		2,036	2,032	6,024	5,949
Product revenue
Segment Reporting Information [Line Items]
Revenue		978	865	2,828	2,571
Product revenue | Corporate and Other
Segment Reporting Information [Line Items]
Revenue		331	307	984	927
Product revenue | Merchant Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		271	288	792	823
Product revenue | Financial Segment | Operating segments
Segment Reporting Information [Line Items]
Revenue		$ 376	$ 270	$ 1,052	$ 821
[1] Includes processing and other fees charged to related party investments accounted for under the equity method of $35 million and $45 million for the three months ended September 30, 2024 and 2023, respectively, and $111 million and $136 million for the nine months ended September 30, 2024 and 2023, respectively (see Note 19).