Segment, Geographic and Other Revenue Information - Revenues By Geographic Area - Footnotes (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 12,131	$ 12,680	$ 35,961	$ 39,062
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	2,087	2,135	6,095	6,450
Euro Member Countries, Euro [Member] | Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 1,700	$ 1,700	$ 4,900	$ 5,200

[1] Revenues denominated in euros were $1.7 billion in the third quarter of 2020 and $1.7 billion in the third quarter of 2019, and were $4.9 billion in the first nine months of 2020 and $5.2 billion in the first nine months of 2019.