Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)

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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Apr. 04, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance at the beginning of the period $ (1,571)  
Before tax amount 53 $ 48
Tax (expense) benefit (10) (21)
After tax amount 43 27
Amounts reclassified from accumulated other comprehensive income(1) 5 18
Net current period other comprehensive income (loss) 48 45
Balance at the end of the period (1,515)  
Change in pensions and other postretirement defined benefit plans    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance at the beginning of the period (346) (735)
Before tax amount 14 15
Tax (expense) benefit (4) (3)
After tax amount 10 12
Amounts reclassified from accumulated other comprehensive income(1) 6 17
Net current period other comprehensive income (loss) 16 29
Balance at the end of the period (330) (706)
Foreign currency translation adjustment    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance at the beginning of the period (1,208) (1,204)
Before tax amount 11 (60)
Tax (expense) benefit 1 4
After tax amount 12 (56)
Amounts reclassified from accumulated other comprehensive income(1) 0 0
Net current period other comprehensive income (loss) 12 (56)
Balance at the end of the period (1,196) (1,260)
Unrealized gain (loss) on derivatives    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance at the beginning of the period (17) (43)
Before tax amount 36 93
Tax (expense) benefit (7) (22)
After tax amount 29 71
Amounts reclassified from accumulated other comprehensive income(1) (1) 1
Net current period other comprehensive income (loss) 28 72
Balance at the end of the period 11 29
Total attributable to Cummins Inc.    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Balance at the beginning of the period (1,571) (1,982)
Before tax amount 61 48
Tax (expense) benefit (10) (21)
After tax amount 51 27
Amounts reclassified from accumulated other comprehensive income(1) 5 18
Net current period other comprehensive income (loss) 56 45
Balance at the end of the period (1,515) (1,937)
Noncontrolling interests    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Before tax amount (8) 0
Tax (expense) benefit 0 0
After tax amount (8) 0
Amounts reclassified from accumulated other comprehensive income(1) 0 0
Net current period other comprehensive income (loss) $ (8) $ 0