Schedule of Segment Reporting Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Processing and services revenue	$ 966	$ 898
Product revenue	186	199
Total revenue	1,152	1,097
Operating income	211	239
Payments
Segment Reporting Information [Line Items]
Processing and services revenue	453	435
Product revenue	164	173
Total revenue	617	608
Operating income	166	158
Financial
Segment Reporting Information [Line Items]
Processing and services revenue	516	465
Product revenue	33	36
Total revenue	549	501
Operating income	161	151
Corporate and Other
Segment Reporting Information [Line Items]
Processing and services revenue	(3)	(2)
Product revenue	(11)	(10)
Total revenue	(14)	(12)
Operating income	$ (116)	$ (70)