Document and Entity Information
6 Months Ended
Jun. 26, 2011
Aug. 02, 2011
Common Class A [Member]
Aug. 02, 2011
Common Class B [Member]
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Jun. 26, 2011
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus Q2    
Entity Registrant Name Spansion Inc.    
Entity Central Index Key 0001322705    
Current Fiscal Year End Date --12-25    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   61,822,227 1