v3.19.3.a.u2
Cover Page - USD ($)
12 Months Ended
Dec. 31, 2019
Jan. 22, 2020
Jun. 30, 2019
Cover page.      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 000-22513    
Entity Registrant Name AMAZON.COM, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 91-1646860    
Entity Address, Address Line One 410 Terry Avenue North    
Entity Address, City or Town Seattle    
Entity Address, State or Province WA    
Entity Address, Postal Zip Code 98109    
City Area Code 206    
Local Phone Number 266-1000    
Title of 12(b) Security Common Stock, par value $.01 per share    
Trading Symbol AMZN    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 786,284,080,955
Entity Common Stock, Shares Outstanding   497,810,444  
Amendment Flag false    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001018724    
Current Fiscal Year End Date --12-31