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DOCUMENT AND ENTITY INFORMATION
9 Months Ended
Feb. 28, 2013
Mar. 15, 2013
Document and Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Feb. 28, 2013  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2013  
Trading Symbol ORCL  
Entity Registrant Name Oracle Corporation  
Entity Central Index Key 0001341439  
Current Fiscal Year End Date --05-31  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding (in shares)   4,710,658,000