Identifiable Intangible Assets and Goodwill - Finite-lived and Indefinite-lived Intangible Assets Footnotes (Details) $ in Millions	6 Months Ended
	Jun. 28, 2020 USD ($)
Braftovi [Member] | Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets period increase (decrease)	$ 1,400
Array [Member] | Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets period increase (decrease)	550
In Process Research and Development [Member] | Braftovi [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, period increase (decrease)	(1,400)
License Agreements and Other [Member] | Array [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, period increase (decrease)	$ (550)