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Goodwill and Acquired Intangible Assets - Gross Carrying Amount and Accumulated Amortization (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015
Acquired Finite-Lived Intangible Assets |  |
Gross Carrying Amount | $ 77 | $ 92
Accumulated Amortization and Currency Translation Adjustments | (66) | (70)
Intellectual property/developed technology |  |
Acquired Finite-Lived Intangible Assets |  |
Gross Carrying Amount | 71 | 83
Accumulated Amortization and Currency Translation Adjustments | (61) | (63)
Customer relationships |  |
Acquired Finite-Lived Intangible Assets |  |
Gross Carrying Amount | 0 | 3
Accumulated Amortization and Currency Translation Adjustments | $ 0 | (3)
Trademarks/trade names |  |
Acquired Finite-Lived Intangible Assets |  |
Amortization Life (in Years) | 5 years |
Gross Carrying Amount | $ 1 | 1
Accumulated Amortization and Currency Translation Adjustments | $ (1) | (1)
In-process research and development |  |
Acquired Finite-Lived Intangible Assets |  |
Amortization Life (in Years) | 5 years |
Gross Carrying Amount | $ 5 | 5
Accumulated Amortization and Currency Translation Adjustments | $ (4) | $ (3)
Minimum | Intellectual property/developed technology |  |
Acquired Finite-Lived Intangible Assets |  |
Amortization Life (in Years) | 1 year |
Minimum | Customer relationships |  |
Acquired Finite-Lived Intangible Assets |  |
Amortization Life (in Years) | 3 years |
Maximum | Intellectual property/developed technology |  |
Acquired Finite-Lived Intangible Assets |  |
Amortization Life (in Years) | 7 years |
Maximum | Customer relationships |  |
Acquired Finite-Lived Intangible Assets |  |
Amortization Life (in Years) | 10 years |

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- Definition 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. + References No definition available. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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