Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)

v3.21.2
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 03, 2021
Sep. 27, 2020
Oct. 03, 2021
Sep. 27, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at the beginning of the period     $ (1,982)  
Before tax amount $ 6 $ 134 31 $ (160)
Tax (expense) benefit (4) (5) (15) 25
After tax amount 2 129 16 (135)
Amounts reclassified from accumulated other comprehensive income (loss)(1) 18 16 50 44
Net current period other comprehensive income (loss) 20 145 66 (91)
Balance at the end of the period (1,911)   (1,911)  
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 (689) (716) (735) (734)
Before tax amount 1 0 16 (19)
Tax (expense) benefit (1) 0 (3) 5
After tax amount 0 0 13 (14)
Amounts reclassified from accumulated other comprehensive income (loss)(1) 17 16 50 48
Net current period other comprehensive income (loss) 17 16 63 34
Balance at the end of the period (672) (700) (672) (700)
Foreign currency translation adjustment        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at the beginning of the period (1,231) (1,436) (1,204) (1,285)
Before tax amount (2) 101 (33) (54)
Tax (expense) benefit 0 0 4 4
After tax amount (2) 101 (29) (50)
Amounts reclassified from accumulated other comprehensive income (loss)(1) 0 0 0 0
Net current period other comprehensive income (loss) (2) 101 (29) (50)
Balance at the end of the period (1,233) (1,335) (1,233) (1,335)
Unrealized gain (loss) on derivatives        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at the beginning of the period (9) (90) (43) (9)
Before tax amount 5 23 53 (75)
Tax (expense) benefit (3) (5) (16) 16
After tax amount 2 18 37 (59)
Amounts reclassified from accumulated other comprehensive income (loss)(1) 1 0   (4)
Net current period other comprehensive income (loss) 3 18 37 (63)
Balance at the end of the period (6) (72) (6) (72)
Total attributable to Cummins Inc.        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Balance at the beginning of the period (1,929) (2,242) (1,982) (2,028)
Before tax amount 4 124 36 (148)
Tax (expense) benefit (4) (5) (15) 25
After tax amount 0 119 21 (123)
Amounts reclassified from accumulated other comprehensive income (loss)(1) 18 16 50 44
Net current period other comprehensive income (loss) 18 135 71 (79)
Balance at the end of the period (1,911) (2,107) (1,911) (2,107)
Noncontrolling interests        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Before tax amount 2 10 (5) (12)
Tax (expense) benefit 0 0 0 0
After tax amount 2 10 (5) (12)
Amounts reclassified from accumulated other comprehensive income (loss)(1) 0 0 0  
Net current period other comprehensive income (loss) $ 2 $ 10 $ (5) $ (12)