Investments - Bejing Unisoc Technology (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 26, 2021	Mar. 27, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020	Dec. 26, 2020
Schedule of Investments [Line Items]
Gains (losses) on equity investments, net	$ 295		$ 267	$ 663	$ 156
Bejing Unisoc Technology Ltd.
Schedule of Investments [Line Items]
Gains (losses) on equity investments, net		$ 471
Net book value of nonmarketable equity investment	$ 1,100			$ 1,100		$ 658