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Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Thousands
Nov. 30, 2018
Dec. 01, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign Currency Contract, Asset, Fair Value Disclosure $ 44,259 $ 14,198
Deferred Compensation Plan Assets, Fair Value Disclosure 68,988 56,690
Assets, Fair Value Disclosure 2,973,645 5,610,174
Foreign Currency Contracts, Liability, Fair Value Disclosure 816 1,598
Interest Rate Derivative Liabilities, Fair Value Disclosure 9,744 1,058
Liabilities, Fair Value Disclosure 10,560 2,656
Asset-backed Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 41,508 98,001
Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 1,522,208 2,454,260
Foreign government securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 4,155 2,388
Municipal securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 18,316 21,065
Money market mutual funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure 1,234,188 2,006,741
Time deposits [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure 40,023 18,843
US Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure   937,988
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign Currency Contract, Asset, Fair Value Disclosure 0 0
Deferred Compensation Plan Assets, Fair Value Disclosure 3,895 2,573
Assets, Fair Value Disclosure 1,278,106 2,028,157
Foreign Currency Contracts, Liability, Fair Value Disclosure 0 0
Interest Rate Derivative Liabilities, Fair Value Disclosure 0 0
Liabilities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 1 [Member] | Asset-backed Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 1 [Member] | Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 1 [Member] | Foreign government securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 1 [Member] | Municipal securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 1 [Member] | Money market mutual funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure 1,234,188 2,006,741
Fair Value, Inputs, Level 1 [Member] | Time deposits [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure 40,023 18,843
Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure   0
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign Currency Contract, Asset, Fair Value Disclosure 44,259 14,198
Deferred Compensation Plan Assets, Fair Value Disclosure 65,093 54,117
Assets, Fair Value Disclosure 1,695,539 3,582,017
Foreign Currency Contracts, Liability, Fair Value Disclosure 816 1,598
Interest Rate Derivative Liabilities, Fair Value Disclosure 9,744 1,058
Liabilities, Fair Value Disclosure 10,560 2,656
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 41,508 98,001
Fair Value, Inputs, Level 2 [Member] | Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 1,522,208 2,454,260
Fair Value, Inputs, Level 2 [Member] | Foreign government securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 4,155 2,388
Fair Value, Inputs, Level 2 [Member] | Municipal securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 18,316 21,065
Fair Value, Inputs, Level 2 [Member] | Money market mutual funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 2 [Member] | Time deposits [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure   937,988
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Foreign Currency Contract, Asset, Fair Value Disclosure 0 0
Deferred Compensation Plan Assets, Fair Value Disclosure 0 0
Assets, Fair Value Disclosure 0 0
Foreign Currency Contracts, Liability, Fair Value Disclosure 0 0
Interest Rate Derivative Liabilities, Fair Value Disclosure 0 0
Liabilities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Asset-backed Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Corporate debt securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Foreign government securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Municipal securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Money market mutual funds [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member] | Time deposits [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and Cash Equivalents, Fair Value Disclosure $ 0 0
Fair Value, Inputs, Level 3 [Member] | US Treasury Securities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Available-for-sale Securities, Fair Value Disclosure   $ 0