Quarterly report pursuant to Section 13 or 15(d)

EQUITY, ROYALTY AND INTEREST INCOME FROM INVESTEES (Details)

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EQUITY, ROYALTY AND INTEREST INCOME FROM INVESTEES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Equity, royalty and interest income from investees        
Cummins share of net income $ 98 $ 95 $ 171 $ 187
Royalty and interest income 10 9 19 21
Equity, royalty and interest income from investees 108 104 190 208
Distribution - North American distributors
       
Equity, royalty and interest income from investees        
Cummins share of net income 29 38 64 78
Distribution - Komatsu Cummins Chile, Ltda.
       
Equity, royalty and interest income from investees        
Cummins share of net income 6 6 11 11
Distribution - All other distributors
       
Equity, royalty and interest income from investees        
Cummins share of net income   2   3
Manufacturing - Dongfeng Cummins Engine Company, Ltd.
       
Equity, royalty and interest income from investees        
Cummins share of net income 20 17 32 33
Manufacturing - Chongqing Cummins Engine Company, Ltd.
       
Equity, royalty and interest income from investees        
Cummins share of net income 17 17 29 35
Manufacturing - Beijing Foton Cummins Engine Co., Ltd.
       
Equity, royalty and interest income from investees        
Cummins share of net income 9 2 10  
Manufacturing - Shanghai Fleetguard Filter Co., Ltd.
       
Equity, royalty and interest income from investees        
Cummins share of net income 4 4 7 7
Manufacturing - Komatsu manufacturing alliances
       
Equity, royalty and interest income from investees        
Cummins share of net income 4 1 3  
Manufacturing Entities, Cummins Westport, Inc.
       
Equity, royalty and interest income from investees        
Cummins share of net income 3 4 3 9
Manufacturing - Valvoline Cummins, Ltd.
       
Equity, royalty and interest income from investees        
Cummins share of net income 2 2 5 4
Manufacturing - Tata Cummins, Ltd.
       
Equity, royalty and interest income from investees        
Cummins share of net income 2 3 3 7
Manufacturing Entities, Xian Cummins Engine Company Ltd.
       
Equity, royalty and interest income from investees        
Cummins share of net income 1 (5) 1 (6)
Manufacturing - All other manufacturers
       
Equity, royalty and interest income from investees        
Cummins share of net income $ 1 $ 4 $ 3 $ 6