v3.7.0.1

Unearned Revenue and Performance Obligations (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Deferred Revenue Disclosure [Abstract]
Subscription revenue recognized that was included in total unearned revenue balance at beginning of period	$ 361	$ 251
Revenue is expected to be recognized from remaining performance obligations for subscription contracts	$ 4,000
Remaining performance obligations to be recognized in the next 2 years	66.67%
Recognition period	24 months

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- References

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- Definition

Amount of revenue recognized that was previously reported as deferred or unearned revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response))
-URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780

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- Definition

Recognition Period for Remaining Performance Obligations

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- Definition

Remaining Performance Obligations to be Recognize in the Next Two Years

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- Definition

Remaining Revenue Expected to be Recognized

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