v2.4.0.6
Document and Entity Information
3 Months Ended
Mar. 31, 2010
Apr. 30, 2010
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2010  
Document Fiscal Year Focus 2010  
Document Fiscal Period Focus Q1  
Trading Symbol YHOO  
Entity Registrant Name YAHOO INC  
Entity Central Index Key 0001011006  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   1,385,062,910