The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References+ Details

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References+ Details

Accumulated Other Comprehensive Income Impact and Location of AOCI Reclassifications in Consolidated Statements of Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Cost of services									$ 810us-gaap_CostOfServices	$ 786us-gaap_CostOfServices	$ 758us-gaap_CostOfServices
Selling, general and administrative expenses									770	757	728
Research and development expenses									206us-gaap_ResearchAndDevelopmentExpense	184us-gaap_ResearchAndDevelopmentExpense	183us-gaap_ResearchAndDevelopmentExpense
Net income	118us-gaap_NetIncomeLoss	94us-gaap_NetIncomeLoss	96us-gaap_NetIncomeLoss	59us-gaap_NetIncomeLoss	112us-gaap_NetIncomeLoss	98us-gaap_NetIncomeLoss	108us-gaap_NetIncomeLoss	59us-gaap_NetIncomeLoss	367us-gaap_NetIncomeLoss	377us-gaap_NetIncomeLoss	419us-gaap_NetIncomeLoss
Amount Reclassified from of Accumulated Other Comprehensive Income
Defined Benefit Plan Disclosure [Line Items]
Net income									1	2	2
Amount Reclassified from of Accumulated Other Comprehensive Income \| Accumulated Defined Benefit Plans Adjustment
Defined Benefit Plan Disclosure [Line Items]
Cost of services									1	2	1
Selling, general and administrative expenses									0	1	0
Research and development expenses									$ 0	$ (1)	$ 1