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Revenues by Geographic Area (Detail) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 PRC USD ($)	Dec. 31, 2014 PRC CNY	Dec. 31, 2013 PRC CNY	Dec. 31, 2012 PRC CNY	Dec. 31, 2014 Non-PRC USD ($)	Dec. 31, 2014 Non-PRC CNY	Dec. 31, 2013 Non-PRC CNY	Dec. 31, 2012 Non-PRC CNY
Revenues:
Revenues	$ 7,864,149us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CN	48,793,898us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CN	31,875,202us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CN	22,198,685us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CN	$ 41,650us-gaap_Revenues / us-gaap_StatementGeographicalAxis = bidu_NonPeoplesRepublicOfChinaMember	258,420us-gaap_Revenues / us-gaap_StatementGeographicalAxis = bidu_NonPeoplesRepublicOfChinaMember	68,722us-gaap_Revenues / us-gaap_StatementGeographicalAxis = bidu_NonPeoplesRepublicOfChinaMember	107,341us-gaap_Revenues / us-gaap_StatementGeographicalAxis = bidu_NonPeoplesRepublicOfChinaMember

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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