Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Aug. 31, 2012	Aug. 31, 2012	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Corporate bonds and commercial paper [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Corporate bonds and commercial paper [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Money Market Mutual Funds and Repurchase Agreements [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Money Market Mutual Funds and Repurchase Agreements [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Foreign government securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Foreign government securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Marketable equity securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Marketable equity securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Municipal securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Municipal securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Time deposits [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Time deposits [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] U.S. agency securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] U.S. agency securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] U.S. Treasury securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] U.S. Treasury securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1)	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1)	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Corporate bonds and commercial paper [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Corporate bonds and commercial paper [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Money Market Mutual Funds and Repurchase Agreements [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Money Market Mutual Funds and Repurchase Agreements [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Foreign government securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Foreign government securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Marketable equity securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Marketable equity securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Municipal securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Municipal securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Time deposits [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) Time deposits [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) U.S. agency securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) U.S. agency securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) U.S. Treasury securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) U.S. Treasury securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2)	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2)	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Corporate bonds and commercial paper [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Corporate bonds and commercial paper [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Money Market Mutual Funds and Repurchase Agreements [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Money Market Mutual Funds and Repurchase Agreements [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Foreign government securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Foreign government securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Marketable equity securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Marketable equity securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Municipal securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Municipal securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Time deposits [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) Time deposits [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) U.S. agency securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) U.S. agency securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) U.S. Treasury securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) U.S. Treasury securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3)	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3)	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Corporate bonds and commercial paper [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Corporate bonds and commercial paper [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Money Market Mutual Funds and Repurchase Agreements [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Money Market Mutual Funds and Repurchase Agreements [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Foreign government securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Foreign government securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Marketable equity securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Marketable equity securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Municipal securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Municipal securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Time deposits [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) Time deposits [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) U.S. agency securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) U.S. agency securities [Member]	Aug. 31, 2012 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) U.S. Treasury securities [Member]	Dec. 02, 2011 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) U.S. Treasury securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0	$ 0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0	0
Assets:
Cash equivalents					5,749	15,948	827,921	687,152							55,417	15,694		2,500		7,000			0	0	827,921	687,152							55,417	15,694		0		0			5,749	15,948	0	0							0	0		2,500		7,000			0	0	0	0							0	0		0		0
Short-term investments					1,080,904	1,111,537			8,111	7,323	249	12,267	149,112	106,355			497,189	375,893	349,418	308,817			0	0			0	0	249	12,267	0	0			0	0	0	0			1,080,904	1,111,537			8,111	7,323	0	0	149,112	106,355			497,189	375,893	349,418	308,817			0	0			0	0	0	0	0	0			0	0	0	0
Foreign currency derivatives			22,455	25,362																	0	0																	22,455	25,362																	0	0
Deferred compensation plan assets			14,218	12,803																	403	523																	13,815	12,280																	0	0
Total assets			3,010,743	2,688,651																	883,990	715,636																	2,126,753	1,973,015																	0	0
Liabilities:
Foreign currency derivatives			1,958	3,881																	0	0																	1,958	3,881																	0	0
Total liabilities			1,958	3,881																	0	0																	1,958	3,881																	0	0
Other than Temporary Impairment Losses, Investments [Abstract]
Direct cost method investments other-than-temporarily impaired	$ 0	$ 0