Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.

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Name:	us-gaap_OtherDepreciationAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Property and Equipment (Details Numeric) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2018	Dec. 01, 2017	Dec. 02, 2016	Mar. 31, 2017
Property and Equipment [Line Items]
Depreciation and amortization expense	$ 157.1	$ 156.9	$ 157.6
Almaden Tower [Member]
Property and Equipment [Line Items]
Option to purchase building, purchase price				$ 103.6
Capitalized amount for building purchase				$ 104.2