Cummins Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

EQUITY, ROYALTY AND INTEREST INCOME FROM INVESTEES - Schedule of Equity, Royalty and Interest Income from Investees (Details)

EQUITY, ROYALTY AND INTEREST INCOME FROM INVESTEES - Schedule of Equity, Royalty and Interest Income from Investees (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	$ 127	$ 104	$ 429	$ 353
Chongqing Cummins Engine Company, Ltd.
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	28	23	86	68
Dongfeng Cummins Engine Company, Ltd.
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	16	13	66	52
Beijing Foton Cummins Engine Co., Ltd.
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	15	17	58	47
Tata Cummins, Ltd.
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	10	6	30	23
All other manufacturers
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	15	6	50	27
Komatsu Cummins Chile, Ltda.
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	13	12	45	41
All other distributors
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	10	5	24	17
Cummins share of net income
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	107	82	359	275
Royalty and interest income
Schedule of Equity Method Investments [Line Items]
Equity, royalty and interest income (loss) from investees	$ 20	$ 22	$ 70	$ 78