Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Net income (loss)	$ (5,939)	$ 799	$ (4,736)	$ 2,677
Other comprehensive income (loss):
Fair market value adjustment on derivatives	8	(11)	(17)	(7)
Tax impacts of derivatives	(5)	1	(8)	(2)
Foreign currency translation	(33)	(71)	(5)	386
Tax impacts of foreign currency translation (see Note 7)	1	(6)	(35)	132
Total other comprehensive income (loss)	(16)	(82)	(15)	523
Comprehensive income (loss)	(5,955)	717	(4,751)	3,200
Less: net income attributable to noncontrolling interests	2	7	7	8
Less: other comprehensive income attributable to noncontrolling interests	2	2	2	95
Comprehensive income (loss) attributable to Fiserv, Inc.	(5,959)	708	(4,760)	3,097
Foreign currency forward exchange contracts
Other comprehensive income (loss):
Reclassification adjustment for net realized losses (gains) on cash flow hedges	6	2	15	4
Treasury Lock
Other comprehensive income (loss):
Reclassification adjustment for net realized losses (gains) on cash flow hedges	$ 7	$ 3	$ 35	$ 10

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