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Business Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Processing and services revenue	$ 1,293	$ 1,238
Product revenue	209	202
Total revenue	1,502	1,440
Operating income	373	608
Corporate and Other
Segment Reporting Information [Line Items]
Processing and services revenue	13	3
Product revenue	(23)	(21)
Total revenue	(10)	(18)
Operating income	(113)	135
Payments | Operating segments
Segment Reporting Information [Line Items]
Processing and services revenue	726	653
Product revenue	188	189
Total revenue	914	842
Operating income	287	271
Financial | Operating segments
Segment Reporting Information [Line Items]
Processing and services revenue	554	582
Product revenue	44	34
Total revenue	598	616
Operating income	$ 199	$ 202

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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-Name Accounting Standards Codification
-Topic 225
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-Name Accounting Standards Codification
-Topic 225
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-Section S99
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