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Segment, Other Supplemental Information and Concentrations - Regional Segment Revenue and Gross Margin for Company (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 588	$ 526	$ 544	$ 506	$ 626	$ 526	$ 513	$ 491	$ 2,164	$ 2,156	$ 2,322
Gross profit	289	264	250	223	307	250	242	225	1,026	1,024	1,189
Total segment gross profit									1,095	1,112	1,276
Stock-based compensation expense									15	13	14
Amortization of acquisition-related intangible assets									0	0	2
Acquisition, integration and reorganization-related costs									5	4	9
Amortization of capitalized software costs									49	71	62
Selling, general and administrative expenses									666	651	662
Research and development expenses									317	305	212
Impairment of goodwill, acquired intangibles and other assets									0	0	80
Income from operations	$ 23	$ 14	$ 10	$ (4)	$ 60	$ 9	$ (1)	$ 0	43	68	235
Americas
Segment Reporting Information [Line Items]
Revenue									1,126	1,195	1,334
Gross profit									621	675	797
International
Segment Reporting Information [Line Items]
Revenue									1,038	961	919
Gross profit									474	437	445
Total Data and Analytics
Segment Reporting Information [Line Items]
Revenue									2,164	2,156	2,253
Gross profit									1,095	1,112	1,242
Marketing Applications
Segment Reporting Information [Line Items]
Revenue									0	0	69
Gross profit									$ 0	$ 0	$ 34

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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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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