Operating Segments and Geographic Information, Revenues from External Customers by Country (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 77,867	$ 71,965	$ 70,848
China (Including Hong Kong) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	20,257	20,026	18,824
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	17,845	15,650	15,409
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	16,573	15,617	14,303
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	11,605	10,058	10,646
Other Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 11,587	$ 10,614	$ 11,666