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Goodwill - Schedule of Changes in Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Changes in goodwill, net of purchase accounting adjustments
Beginning balance	$ 17,260	$ 16,971
Goodwill attributable to acquisitions	337	355
Foreign currency adjustments	165	(66)
Ending balance	17,762	17,260
Banking Solutions
Changes in goodwill, net of purchase accounting adjustments
Beginning balance	12,699	12,588
Goodwill attributable to acquisitions	330	138
Foreign currency adjustments	51	(27)
Ending balance	13,080	12,699
Capital Market Solutions
Changes in goodwill, net of purchase accounting adjustments
Beginning balance	4,541	4,363
Goodwill attributable to acquisitions	7	217
Foreign currency adjustments	114	(39)
Ending balance	4,662	4,541
Corporate and Other
Changes in goodwill, net of purchase accounting adjustments
Beginning balance	20	20
Goodwill attributable to acquisitions	0	0
Foreign currency adjustments	0	0
Ending balance	$ 20	$ 20

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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