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Segment Gross Profit

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Amount of expense for amortization of capitalized computer software costs.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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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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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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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, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenue	$ 494	$ 459	$ 478	$ 468	$ 588	$ 526	$ 544	$ 506	$ 1,899	$ 2,164	$ 2,156
Gross profit	248	247	236	224	289	264	250	223	955	1,026	1,024
Total segment gross profit									1,013	1,095	1,112
Stock-based compensation expense									14	15	13
Acquisition, integration and reorganization-related costs									11	5	4
Amortization of capitalized software costs									33	49	71
Selling, general and administrative expenses									618	666	651
Research and development expenses									327	317	305
Income from operations	$ (5)	$ 10	$ 10	$ (5)	$ 23	$ 14	$ 10	$ (4)	10	43	68
Operating Segments \| Americas
Segment Reporting Information [Line Items]
Revenue									1,057	1,126	1,195
Gross profit									626	621	675
Operating Segments \| EMEA
Segment Reporting Information [Line Items]
Revenue									492	587	567
Gross profit									239	275	276
Operating Segments \| APAC
Segment Reporting Information [Line Items]
Revenue									350	451	394
Gross profit									$ 148	$ 199	$ 161