Long-Term Employee Related Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 29, 2020	Nov. 24, 2019	Nov. 25, 2018
Compensation Related Costs [Abstract]
Deferred compensation plan, interest cost	$ 13.8	$ 9.4	$ 0.7
Deferred Compensation Share-based Arrangements, Liability, Classified, Noncurrent, Excluded from the rabbi trust [Line Items]
Funds held in grantor's rabbi trust	71.2	49.2
Deferred compensation plan for executives and outside directors, established January 1, 2003 [Member]
Deferred Compensation Share-based Arrangements, Liability, Classified, Noncurrent, Excluded from the rabbi trust [Line Items]
Total deferred compensation plan liabilities	67.9	52.8
Deferred compensation plan for executives, prior to January 1, 2003 [Member]
Deferred Compensation Share-based Arrangements, Liability, Classified, Noncurrent, Excluded from the rabbi trust [Line Items]
Total deferred compensation plan liabilities	$ 30.8	$ 29.0