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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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- Definition 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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