Employee Incentive Compensation Plans (Details) - Annual Incentive Plan (AIP) [Member] - USD ($) $ in Millions	12 Months Ended
	Nov. 29, 2020	Nov. 24, 2019	Nov. 25, 2018
Schedule of Employee Incentive Compensation Plans Disclosures [Line Items]
EICP Compensation expense (benefit)	$ 51.8	$ 86.6	$ 114.3
EICP Accrued liabilities	$ 49.0	$ 87.7