Acquisitions (Details 1) - USD ($) $ in Thousands		12 Months Ended
		Nov. 30, 2018	Dec. 01, 2017	Oct. 31, 2018
Schedule of acquired assets and liabilities [Line Items]
Goodwill, Acquired During Period		$ 4,791,216	$ 348,352
Marketo [Member]
Schedule of acquired assets and liabilities [Line Items]
Finite-Lived Customer Relationships, Gross				$ 576,900
Finite-Lived Purchased Technology, Gross				444,500
Finite-Lived Backlog, Gross				105,800
Finite-Lived Noncompete Agreements, Gross				12,100
Finite-Lived Trademarks, Gross				328,500
Total identifiable intangible assets acquired				1,467,800
Net assets acquired or liabilities assumed				(191,288)
Goodwill, Acquired During Period	[1]	$ 3,459,751
Business Combination Purchase Price				$ 4,736,263
Customer Contracts and Relationships [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		9 years
Customer Contracts and Relationships [Member] | Marketo [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		11 years
Purchased Technology [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		6 years
Purchased Technology [Member] | Marketo [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years
Backlog [Member] | Marketo [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		2 years
Noncompete Agreements [Member] | Marketo [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		2 years
Trademarks [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		9 years
Trademarks [Member] | Marketo [Member]
Schedule of acquired assets and liabilities [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		9 years

[1] Non-deductible for tax-purposes.