Cummins Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details)

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Millions, unless otherwise specified			9 Months Ended
	Sep. 29, 2013	Dec. 31, 2012	Sep. 29, 2013 Minimum	Sep. 29, 2013 Maximum	Sep. 29, 2013 Interest rate contracts contract	Sep. 29, 2013 Measured on a recurring basis Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Total	Dec. 31, 2012 Measured on a recurring basis Total	Sep. 29, 2013 Measured on a recurring basis Interest rate contracts Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Interest rate contracts Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Interest rate contracts Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Interest rate contracts Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Interest rate contracts Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Interest rate contracts Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Interest rate contracts Total	Dec. 31, 2012 Measured on a recurring basis Interest rate contracts Total	Sep. 29, 2013 Measured on a recurring basis Foreign currency forward contracts Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Foreign currency forward contracts Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Foreign currency forward contracts Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Foreign currency forward contracts Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Foreign currency forward contracts Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Foreign currency forward contracts Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Foreign currency forward contracts Total	Dec. 31, 2012 Measured on a recurring basis Foreign currency forward contracts Total	Sep. 29, 2013 Measured on a recurring basis Commodity call option contracts Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Commodity call option contracts Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Commodity call option contracts Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Commodity call option contracts Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Commodity call option contracts Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Commodity call option contracts Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Commodity call option contracts Total	Dec. 31, 2012 Measured on a recurring basis Commodity call option contracts Total	Sep. 29, 2013 Measured on a recurring basis Commodity swap contracts Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Commodity swap contracts Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Commodity swap contracts Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Commodity swap contracts Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Commodity swap contracts Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Commodity swap contracts Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Commodity swap contracts Total	Dec. 31, 2012 Measured on a recurring basis Commodity swap contracts Total	Sep. 29, 2013 Measured on a recurring basis Commodity put option contracts Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Commodity put option contracts Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Commodity put option contracts Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Commodity put option contracts Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Commodity put option contracts Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Commodity put option contracts Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Commodity put option contracts Total	Dec. 31, 2012 Measured on a recurring basis Commodity put option contracts Total	Sep. 29, 2013 Measured on a recurring basis Debt mutual funds Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Debt mutual funds Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Debt mutual funds Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Debt mutual funds Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Debt mutual funds Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Debt mutual funds Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Debt mutual funds Total	Dec. 31, 2012 Measured on a recurring basis Debt mutual funds Total	Sep. 29, 2013 Measured on a recurring basis Bank debentures Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Bank debentures Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Bank debentures Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Bank debentures Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Bank debentures Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Bank debentures Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Bank debentures Total	Dec. 31, 2012 Measured on a recurring basis Bank debentures Total	Sep. 29, 2013 Measured on a recurring basis Certificates of deposit Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Certificates of deposit Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Certificates of deposit Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Certificates of deposit Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Certificates of deposit Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Certificates of deposit Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Certificates of deposit Total	Dec. 31, 2012 Measured on a recurring basis Certificates of deposit Total	Sep. 29, 2013 Measured on a recurring basis Government debt securities-non-U.S. Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Government debt securities-non-U.S. Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Government debt securities-non-U.S. Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Government debt securities-non-U.S. Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Government debt securities-non-U.S. Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Government debt securities-non-U.S. Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Government debt securities-non-U.S. Total	Dec. 31, 2012 Measured on a recurring basis Government debt securities-non-U.S. Total	Dec. 31, 2012 Measured on a recurring basis Corporate debt securities Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Corporate debt securities Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Corporate debt securities Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Corporate debt securities Total	Sep. 29, 2013 Measured on a recurring basis Information technology industry Quoted prices in active markets for identical assets (Level 1)	Sep. 29, 2013 Measured on a recurring basis Information technology industry Significant other observable inputs (Level 2)	Sep. 29, 2013 Measured on a recurring basis Information technology industry Significant unobservable inputs (Level 3)	Sep. 29, 2013 Measured on a recurring basis Information technology industry Total	Dec. 31, 2012 Measured on a recurring basis Financial services industry Quoted prices in active markets for identical assets (Level 1)	Dec. 31, 2012 Measured on a recurring basis Financial services industry Significant other observable inputs (Level 2)	Dec. 31, 2012 Measured on a recurring basis Financial services industry Significant unobservable inputs (Level 3)	Dec. 31, 2012 Measured on a recurring basis Financial services industry Total
Available-for-sale debt securities:
Available-for-sale debt securities	$ 79																																																					$ 61	$ 100	$ 31	$ 42	$ 0	$ 0	$ 92	$ 142	$ 0	$ 0	$ 9	$ 45	$ 0	$ 0	$ 9	$ 45	$ 0	$ 0	$ 36	$ 47	$ 0	$ 0	$ 36	$ 47	$ 0	$ 0	$ 3	$ 3	$ 0	$ 0	$ 3	$ 3	$ 0	$ 1	$ 0	$ 1
Available-for-sale equity securities:
Available-for-sale equity securities																																																																																										22	0	0	22	9	0	0	9
Derivative assets:
Derivative assets	60	93												0	0	54	88	0	0	54	88	0	0	5	3	0	0	5	3	0	0	1	1	0	0	1	1		0		1		0		1
Derivative liabilities:
Derivative liabilities	8	3																				0		2		0		2										0	0	5	2	0	0	5	2	0	0	1	1	0	0	1	1
Total:
Total assets						83	109	139	231	0	0	222	340
Total liabilities						0	0	8	3	0	0	8	3
Bank debentures and certificates of deposit period of maturity			6 months	5 years
Number of interest rate contracts					1
Fair value
Fair value of total debt	1,952	926
Carrying value of total debt	$ 1,793	$ 775