Condensed Consolidating Statement of Income and Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenue:
Processing and services	$ 1,015	$ 904	$ 1,981	$ 1,802
Product	183	183	369	382
Total revenue	1,198	1,087	2,350	2,184
Expenses:
Cost of processing and services	523	471	1,045	965
Cost of product	157	155	347	314
Selling, general and administrative	245	204	474	409
Total expenses	925	830	1,866	1,688
Operating income (loss)	273	257	484	496
Interest (expense) income, net	(41)	(38)	(82)	(81)
Income (loss) from continuing operations before income taxes and income from investment in unconsolidated affiliate	232	219	402	415
Income tax (provision) benefit	(81)	(60)	(139)	(127)
Income from investment in unconsolidated affiliate	1	3	6	6
Income from continuing operations	152	162	269	294
(Loss) income from discontinued operations, net of income taxes	(1)	(1)	(1)	(1)
Net income	151	161	268	293
Comprehensive income	146	150	261	298
Parent Company
Expenses:
Selling, general and administrative	31	26	59	49
Total expenses	31	26	59	49
Operating income (loss)	(31)	(26)	(59)	(49)
Interest (expense) income, net	(32)	(25)	(64)	(52)
Income (loss) from continuing operations before income taxes and income from investment in unconsolidated affiliate	(63)	(51)	(123)	(101)
Income tax (provision) benefit	26	38	52	63
Equity in earnings of consolidated affiliates	189	175	340	332
Income from continuing operations	152	162	269	294
(Loss) income from discontinued operations, net of income taxes	(1)	(1)	(1)	(1)
Net income	151	161	268	293
Comprehensive income	146	150	261	298
Guarantor Subsidiaries
Revenue:
Processing and services	724	640	1,437	1,286
Product	170	173	352	363
Total revenue	894	813	1,789	1,649
Expenses:
Cost of processing and services	356	338	740	685
Cost of product	152	153	339	312
Selling, general and administrative	160	123	304	246
Total expenses	668	614	1,383	1,243
Operating income (loss)	226	199	406	406
Interest (expense) income, net	(5)	(16)	(11)	(29)
Income (loss) from continuing operations before income taxes and income from investment in unconsolidated affiliate	221	183	395	377
Income tax (provision) benefit	(82)	(65)	(144)	(138)
Income from investment in unconsolidated affiliate	1	3	6	6
Income from continuing operations	140	121	257	245
(Loss) income from discontinued operations, net of income taxes		1		2
Net income	140	122	257	247
Comprehensive income	140	122	257	247
Non-Guarantor Subsidiaries
Revenue:
Processing and services	332	309	625	593
Product	29	23	51	50
Total revenue	361	332	676	643
Expenses:
Cost of processing and services	208	178	386	357
Cost of product	21	15	42	33
Selling, general and administrative	54	55	111	114
Total expenses	283	248	539	504
Operating income (loss)	78	84	137	139
Interest (expense) income, net	(4)	3	(7)
Income (loss) from continuing operations before income taxes and income from investment in unconsolidated affiliate	74	87	130	139
Income tax (provision) benefit	(25)	(33)	(47)	(52)
Income from continuing operations	49	54	83	87
Net income	49	54	83	87
Comprehensive income	44	50	73	88
Eliminations
Revenue:
Processing and services	(41)	(45)	(81)	(77)
Product	(16)	(13)	(34)	(31)
Total revenue	(57)	(58)	(115)	(108)
Expenses:
Cost of processing and services	(41)	(45)	(81)	(77)
Cost of product	(16)	(13)	(34)	(31)
Total expenses	(57)	(58)	(115)	(108)
Equity in earnings of consolidated affiliates	(189)	(175)	(340)	(332)
Income from continuing operations	(189)	(175)	(340)	(332)
(Loss) income from discontinued operations, net of income taxes		(1)		(2)
Net income	(189)	(176)	(340)	(334)
Comprehensive income	$ (184)	$ (172)	$ (330)	$ (335)