Annual report [Section 13 and 15(d), not S-K Item 405]

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)

v3.25.4
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Changes in accumulated other comprehensive income (loss) by component:      
Balance at the beginning of period $ (2,445)    
Before tax amount 90 $ (296) $ (413)
Tax benefit (expense) 60 (22) 105
After tax amount 150 (318) (308)
Amounts reclassified from accumulated other comprehensive income (loss) (1) 4 63 (11)
Net current period other comprehensive (loss) income 154 (255) (319)
Balance at the end of period (2,278) (2,445)  
Change in pensions and other postretirement defined benefit plans      
Changes in accumulated other comprehensive income (loss) by component:      
Balance at the beginning of period (843) (848) (427)
Before tax amount (122) (14) (541)
Tax benefit (expense) 26 (2) 113
After tax amount (96) (16) (428)
Amounts reclassified from accumulated other comprehensive income (loss) (1) 27 21 7
Net current period other comprehensive (loss) income (69) 5 (421)
Balance at the end of period (912) (843) (848)
Foreign currency translation adjustment      
Changes in accumulated other comprehensive income (loss) by component:      
Balance at the beginning of period (1,717) (1,457) (1,552)
Before tax amount 222 (313) 96
Tax benefit (expense) 35 (8) (1)
After tax amount 257 (321) 95
Amounts reclassified from accumulated other comprehensive income (loss) (1) 0 61 0
Net current period other comprehensive (loss) income 257 (260) 95
Balance at the end of period (1,460) (1,717) (1,457)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent      
Changes in accumulated other comprehensive income (loss) by component:      
Balance at the beginning of period 115 99 89
Before tax amount 3 47 35
Tax benefit (expense) (1) (12) (7)
After tax amount 2 35 28
Amounts reclassified from accumulated other comprehensive income (loss) (1) (23) (19) (18)
Net current period other comprehensive (loss) income (21) 16 10
Balance at the end of period 94 115 99
Total attributable to Cummins Inc.      
Changes in accumulated other comprehensive income (loss) by component:      
Balance at the beginning of period (2,445) (2,206) (1,890)
Before tax amount 103 (280) (410)
Tax benefit (expense) 60 (22) 105
After tax amount 163 (302) (305)
Amounts reclassified from accumulated other comprehensive income (loss) (1) 4 63 (11)
Net current period other comprehensive (loss) income 167 (239) (316)
Balance at the end of period (2,278) (2,445) (2,206)
Noncontrolling interests      
Changes in accumulated other comprehensive income (loss) by component:      
Before tax amount (13) (16) (3)
Tax benefit (expense) 0 0 0
After tax amount (13) (16) (3)
Amounts reclassified from accumulated other comprehensive income (loss) (1) 0 0 0
Net current period other comprehensive (loss) income $ (13) $ (16) $ (3)