Restricted Cash Reconciliation from Cash and Cash Equivalents to Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Dec. 28, 2019	Dec. 29, 2018
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 5,403		$ 2,279
Restricted cash included in other current assets	1		1
Cash, cash equivalents, and restricted cash	5,404	$ 1,102	$ 2,280	$ 1,136
Senior unsecured revolving credit facility
Debt Instrument [Line Items]
Maximum amount of revolving credit facility outstanding during the period	$ 4,000	$ 0