Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 17, 2019
Document And Entity Information [Abstract]
Document Transition Report	false
Document Quarterly Report	true
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Registrant Name	AMAZON COM INC
Entity Central Index Key	0001018724
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Address, Postal Zip Code	98109-5210
Entity Address, Address Line One	410 Terry Avenue North
Entity Address, City or Town	Seattle,
Entity Address, State or Province	WA
Entity Small Business	false
Entity File Number	000-22513
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	91-1646860
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	AMZN
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		494,656,015
City Area Code	206
Local Phone Number	266-1000
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes