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
3 Months Ended 9 Months Ended
Sep. 30, 2018
Oct. 01, 2017
Sep. 30, 2018
Oct. 01, 2017
Equity, royalty and interest income from investees        
Cummins share of net income $ 77 $ 84 $ 271 $ 265
Revenues [1] 5,943 5,285 17,645 14,952
Equity, royalty and interest income from investees 90 95 315 301
Manufacturing - Beijing Foton Cummins Engine Company        
Equity, royalty and interest income from investees        
Cummins share of net income 18 24 63 79
Manufacturing - Dongfeng Cummins Engine Company Ltd        
Equity, royalty and interest income from investees        
Cummins share of net income 13 15 47 56
Manufacturing - Chongqing Cummins Engine Company, Ltd.        
Equity, royalty and interest income from investees        
Cummins share of net income 11 11 43 30
Manufacturing - Cummins Westport, Inc.        
Equity, royalty and interest income from investees        
Cummins share of net income 8 4 20 9
Manufacturing - Dongfeng Cummins Emission Solutions Co. Ltd.        
Equity, royalty and interest income from investees        
Cummins share of net income 2 3 11 10
Manufacturing - All other manufacturers        
Equity, royalty and interest income from investees        
Cummins share of net income 20 20 69 59
Distribution - Komatsu Cummins Chile, Ltda.        
Equity, royalty and interest income from investees        
Cummins share of net income 5 8 18 23
Distributors - All other distributors        
Equity, royalty and interest income from investees        
Cummins share of net income 0 (1) 0 (1)
Royalty        
Equity, royalty and interest income from investees        
Revenues $ 13 $ 11 $ 44 $ 36
[1] Includes sales to nonconsolidated equity investees of $314 million and $951 million and $285 million and $835 million for the three and nine months ended September 30, 2018 and October 1, 2017, respectively.