Schedule of Segment Reporting Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information [Line Items]
Processing and services revenue	$ 1,063	$ 1,016	$ 3,141	$ 2,997
Product revenue	200	185	609	554
Total revenue	1,263	1,201	3,750	3,551
Operating income	315	280	893	764
Payments
Segment Reporting Information [Line Items]
Processing and services revenue	520	480	1,512	1,410
Product revenue	166	151	516	464
Total revenue	686	631	2,028	1,874
Operating income	201	173	566	518
Financial
Segment Reporting Information [Line Items]
Processing and services revenue	544	538	1,634	1,595
Product revenue	44	42	124	118
Total revenue	588	580	1,758	1,713
Operating income	193	194	581	541
Corporate and Other
Segment Reporting Information [Line Items]
Processing and services revenue	(1)	(2)	(5)	(8)
Product revenue	(10)	(8)	(31)	(28)
Total revenue	(11)	(10)	(36)	(36)
Operating income	$ (79)	$ (87)	$ (254)	$ (295)