Employee Incentive Compensation Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 24, 2019	Nov. 25, 2018	Nov. 26, 2017
Annual Incentive Plan (AIP) [Member]
Schedule of Employee Incentive Compensation Plans Disclosures [Line Items]
EICP Compensation expense (benefit)	$ 86.6	$ 114.3	$ 88.0
EICP Accrued liabilities	87.7	114.4
2005 Long-Term Incentive Plan (LTIP) [Member]
Schedule of Employee Incentive Compensation Plans Disclosures [Line Items]
EICP Compensation expense (benefit)	$ 0.9	4.1	$ 4.5
EICP Accrued liabilities		$ 8.1
ECIP Duration of performace prior to performance measurement	3 years