Schedule of Intangible Assets by Class (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,625	$ 3,680
Accumulated Amortization	1,555	1,538
Net Book Value	2,070	2,142
Customer Related Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,155	2,155
Accumulated Amortization	733	667
Net Book Value	1,422	1,488
Acquired Software and Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	493	493
Accumulated Amortization	322	289
Net Book Value	171	204
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	120	120
Accumulated Amortization	43	39
Net Book Value	77	81
Capitalized Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	619	635
Accumulated Amortization	302	348
Net Book Value	317	287
Purchased Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	238	277
Accumulated Amortization	155	195
Net Book Value	$ 83	$ 82