Revenue (Details 5) - Allowance for Doubtful Accounts - USD ($) $ in Millions		12 Months Ended
		Nov. 27, 2020	Nov. 29, 2019	Nov. 30, 2018
Movement in Valuation Allowances and Reserves
Beginning balance		$ 10	$ 15	$ 9
Increase due to acquisition		0	0	6
Charged to operating expenses		31	5	6
Deductions	[1]	(20)	(10)	(6)
Ending balance		$ 21	$ 10	$ 15

[1] Deductions related to the allowance for doubtful accounts represent amounts written off against the allowance, less recoveries.