Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue:
Processing and services	$ 1,125	$ 1,063	$ 3,301	$ 3,141
Product	188	200	585	609
Total revenue	1,313	1,263	3,886	3,750
Expenses:
Cost of processing and services	541	537	1,625	1,610
Cost of product	172	168	521	519
Selling, general and administrative	258	243	758	728
Total expenses	971	948	2,904	2,857
Operating income	342	315	982	893
Interest expense	(41)	(41)	(131)	(123)
Interest and investment income	0	0	1	1
Loss on early debt extinguishment	0	0	(85)	0
Income from continuing operations before income taxes and income from investment in unconsolidated affiliate	301	274	767	771
Income tax provision	(117)	(120)	(279)	(287)
Income from investment in unconsolidated affiliate	34	85	35	89
Income from continuing operations	218	239	523	573
Income (loss) from discontinued operations, net of income taxes	0	0	0	0
Net income	$ 218	$ 239	$ 523	$ 573
Net income per share – basic:
Continuing operations (in dollars per share)	$ 0.94	$ 0.96	$ 2.22	$ 2.29
Discontinued operations (in dollars per share)	0.00	0.00	0.00	0.00
Total (in dollars per share)	0.94	0.96	2.22	2.29
Net income per share – diluted:
Continuing operations (in dollars per share)	0.92	0.95	2.18	2.25
Discontinued operations (in dollars per share)	0.00	0.00	0.00	0.00
Total (in dollars per share)	$ 0.92	$ 0.95	$ 2.18	$ 2.25
Shares used in computing net income per share:
Basic (in shares)	232.9	247.6	236.0	250.5
Diluted (in shares)	237.0	251.8	240.1	254.6