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Segment and Other Supplemental Information - Regional Segment Revenue and Gross Margin for Company (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information
Revenue	$ 526	$ 526	$ 1,576	$ 1,530
Gross profit	264	250	737	717
Stock-based compensation costs	3	3	11	10
Acquisition, integration, reorganization and transformation-related costs	0	1	3	4
Amortization of capitalized software costs	11	16	38	56
Selling, general and administrative expenses	166	161	481	481
Research and development expenses	84	80	236	228
Income from operations	14	9	20	8
Americas
Segment Reporting Information
Revenue	277	292	828	830
International
Segment Reporting Information
Revenue	249	234	748	700
Operating Segments
Segment Reporting Information
Gross profit	278	270	789	787
Operating Segments | Americas
Segment Reporting Information
Gross profit	158	172	459	481
Operating Segments | International
Segment Reporting Information
Gross profit	$ 120	$ 98	$ 330	$ 306

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Amount of expense for amortization of capitalized computer software costs.

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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.

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