XML 76 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Cover Page
 12 Months Ended
Dec. 31, 2019
shares
Document Information [Line Items]  
Document Type 20-F
Amendment Flag false
Document Period End Date Dec. 31, 2019
Document Fiscal Year Focus 2019
Document Fiscal Period Focus FY
Entity Registrant Name Baidu, Inc.
Entity Central Index Key 0001329099
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer Yes
Entity Filer Category Large Accelerated Filer
Entity Emerging Growth Company false
Entity Shell Company false
Document Transition Report false
Document Annual Report true
Document Shell Company Report false
Entity Current Reporting Status Yes
Entity Voluntary Filers No
Entity Interactive Data Current Yes
Entity File Number 000-51469
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One Baidu CampusNo. 10 Shangdi 10th Street
Entity Address, City or Town Haidian District
Entity Address, Postal Zip Code 100085
Entity Address, Country CN
Document Registration Statement false
Document Accounting Standard U.S. GAAP
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One Baidu Campus No. 10 Shangdi 10th Street
Entity Address, City or Town Haidian District
Entity Address, Postal Zip Code 100085
Entity Address, Country CN
Local Phone Number 5992-8888
City Area Code 86 10
Contact Personnel Name Herman Yu, Chief Financial Officer
Contact Personnel Fax Number (86 10) 5992-0000
Contact Personnel Email Address ir@baidu.com
Class A Ordinary Shares  
Document Information [Line Items]  
No Trading Symbol Flag true
Entity Common Stock, Shares Outstanding 27,381,621
Security Exchange Name NASDAQ
Title of 12(g) Security Class A ordinary shares, par value US$0.00005 per share
Class B Ordinary Shares  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 7,201,254
American Depositary Shares [Member]  
Document Information [Line Items]  
Trading Symbol BIDU
Security Exchange Name NASDAQ
Title of 12(g) Security American depositary shares