Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2015
Feb. 05, 2016
Jun. 28, 2015
Document and Entity Information      
Entity Registrant Name CUMMINS INC    
Entity Central Index Key 0000026172    
Document Type 10-K    
Document Period End Date Dec. 31, 2015    
Amendment Flag false    
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     $ 23.9
Entity Common Stock, Shares Outstanding   174,320,797  
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY