v3.20.2
Identifiable Intangible Assets and Goodwill - Finite-lived and Indefinite-lived Intangible Assets Footnotes (Details)
$ in Millions
 9 Months Ended
Sep. 27, 2020
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Intangible asset impairment charge $ 900
Braftovi [Member] | Developed technology rights [Member]  
Finite-Lived Intangible Assets [Line Items]  
Finite-lived intangible assets period increase (decrease) 600
Array [Member]  
Finite-Lived Intangible Assets [Line Items]  
Intangible asset measurement period adjustments (900)
Array [Member] | Developed technology rights [Member]  
Finite-Lived Intangible Assets [Line Items]  
Intangible asset measurement period adjustments 200
Array [Member] | Licensing Agreements [Member]  
Finite-Lived Intangible Assets [Line Items]  
Finite-lived intangible assets period increase (decrease) 600
Intangible asset measurement period adjustments 1,200
IPR&D [Member]  
Finite-Lived Intangible Assets [Line Items]  
Intangible asset impairment charge 900 [1]
IPR&D [Member] | Braftovi [Member]  
Finite-Lived Intangible Assets [Line Items]  
Indefinite-lived intangible assets, period increase (decrease) (600)
License Agreements and Other [Member] | Array [Member]  
Finite-Lived Intangible Assets [Line Items]  
Indefinite-lived intangible assets, period increase (decrease) $ (600)
[1] Reflects intangible assets written down to fair value in the first nine months of 2020. 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.