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Other (Income)/Deductions - Net - Impaired Intangible Assets (Detail) - Developed Technology Rights [Member] $ in Millions | 9 Months Ended
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Oct. 01, 2017 USD ($) | [1]
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, fair value disclosure | $ 50 | [2]
Impairment of finite-lived intangible assets | 127 |
Level 1 [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, fair value disclosure | 0 | [2]
Level 2 [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, fair value disclosure | 0 | [2]
Level 3 [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, fair value disclosure | $ 50 | [2]
[1] | Reflects intangible assets written down to fair value in the third quarter of 2017. Fair value was determined using the income approach, specifically the multi-period excess earnings method, also known as the discounted cash flow method. We started with a forecast of all the expected net cash flows associated with the asset and then applied an asset-specific discount rate to arrive at a net present value amount. Some of the more significant estimates and assumptions inherent in this approach include: the amount and timing of the projected net cash flows, which includes the expected impact of competitive, legal and/or regulatory forces on the product; the discount rate, which seeks to reflect the various risks inherent in the projected cash flows; and the tax rate, which seeks to incorporate the geographic diversity of the projected cash flows.
[2] | The fair value amount is presented as of the date of impairment, as these assets are not measured at fair value on a recurring basis.

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- Definition Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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