v2.4.0.6
Document and Entity Information (USD $)
In Billions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Feb. 13, 2012
Jun. 30, 2011
Entity Registrant Name Noble Corp / Switzerland    
Entity Central Index Key 0001458891    
Document Type 10-K    
Document Period End Date Dec. 31, 2011    
Amendment Flag false    
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 9.8
Entity Common Stock, Shares Outstanding   252,170,859  
Noble-Cayman [Member]
     
Entity Filer Category Non-accelerated Filer    
Entity Common Stock, Shares Outstanding 261,245,693