Fair Value Measurements (Details 2) (USD $)	3 Months Ended		9 Months Ended
	Aug. 30, 2013	May 31, 2013	Aug. 30, 2013	Nov. 30, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$ 2,034,000		$ 7,049,000
Assets Held-for-Sale, Carrying Value		47,400,000
Assets Held-for-sale, Current	23,573,000	23,600,000	23,573,000	0	[1]
Write-down Charges, Assets Held-For-Sale		23,800,000
Subsequent Event [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Proceeds from Sale of Property Held-for-sale	24,300,000
Notes 2015 and 2020 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Disclosure	$ 1,600,000,000		$ 1,600,000,000

[1] The Condensed Consolidated Balance Sheet as of November 30, 2012 has been derived from the audited Consolidated Financial Statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.