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Segment Information (Revenues From External Customers And Segment Operating Profit) (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]
Income from operations	$ 738	$ 686	$ 2,141	$ 1,965
Operating Segments
Segment Reporting Information [Line Items]
Income from operations	1,091	1,036	3,034	3,054
Operating Segments | Financial Services
Segment Reporting Information [Line Items]
Income from operations	344	283	905	862
Operating Segments | Healthcare Segment
Segment Reporting Information [Line Items]
Income from operations	331	330	975	1,009
Operating Segments | Products and Resources
Segment Reporting Information [Line Items]
Income from operations	258	256	717	719
Operating Segments | Communications, Media and Technology
Segment Reporting Information [Line Items]
Income from operations	158	167	437	464
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Unallocated costs	$ 353	$ 350	$ 893	$ 1,089

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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