Document and Entity Information Document and Entity Information - USD ($)	12 Months Ended
	Dec. 01, 2017	Jan. 12, 2018	Jun. 02, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	ADOBE SYSTEMS INC
Entity Central Index Key	0000796343
Document Type	10-K
Document Period End Date	Dec. 01, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-01
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 52,575,558,763
Entity Common Stock, Shares Outstanding		491,578,529