Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 26, 2018	Aug. 27, 2017	Aug. 26, 2018	Aug. 27, 2017	Nov. 25, 2018
Income Tax Contingency [Line Items]
Preliminary impact of U.S. statutory rate change			$ 129.6
Charge related to re-measurement of deferred tax assets and liabilities			91.5
One-time U.S. transition tax on undistributed foreign earnings			$ 38.1
Tax benefit related to provisional amount on re-measurement of deferred tax assets and liabilities	$ (7.1)
Effective income tax rate	7.40%	23.60%	48.40%	20.20%
Discrete tax benefit from U.S. tax return-to-provision reconciliation	6.40%
Discrete tax benefit from release of reserves for uncertain tax positions			3.60%
Discrete tax benefit related to remeasurement of deferred tax assets and liabilities subject to Tax Rate reduction	5.10%
One-time tax charge related to impact of U.S. tax reform			35.60%
Scenario, Forecast [Member]
Income Tax Contingency [Line Items]
Blended U.S. statutory federal income tax rate					22.40%