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INVESTMENTS IN EQUITY INVESTEES (Details 1) Investments in and Earnings from $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) hp l | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Equity, royalty and interest income from investees |  |  |
Investments and advances to equity method investees | $ 1,538 | $ 1,441 |
Investment account representing cumulative undistributed income in equity investees | 965 |  |
Dividends from the unconsolidated equity investees | 336 | 271 | $ 260
Equity, royalty and interest income from investees | $ 506 | 452 | 330
Equity Method Investment, Other than Temporary Impairment |  | 13 |
Equity Method Investment, Realized Gain (Loss) on Disposal |  | (8) |
Ministry of Finance, India |  |  |
Equity, royalty and interest income from investees |  |  |
Equity, royalty and interest income from investees |  | 37 |
Minimum |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 20.00% |  |
Maximum |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 50.00% |  |
Komatsu Manufacturing Alliances |  |  |
Equity, royalty and interest income from investees |  |  |
Investments and advances to equity method investees | $ 275 | 309 |
Komatsu Manufacturing Alliances | Minimum |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 20.00% |  |
Komatsu Manufacturing Alliances | Maximum |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 50.00% |  |
Beijing Foton Cummins Engine Company |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 50.00% |  |
Investments and advances to equity method investees | $ 255 | 255 |
Equity, royalty and interest income from investees | $ 112 | 113 | 60
Beijing Foton Cummins Engine Company (Light-Duty) | Minimum |  |  |
Equity, royalty and interest income from investees |  |  |
Capacity of mechanical engines (in liters) | l | 2.5 |  |
Beijing Foton Cummins Engine Company (Light-Duty) | Maximum |  |  |
Equity, royalty and interest income from investees |  |  |
Capacity of mechanical engines (in liters) | l | 4.5 |  |
Beijing Foton Cummins Engine Company (Heavy-Duty) | Minimum |  |  |
Equity, royalty and interest income from investees |  |  |
Capacity of mechanical engines (in liters) | l | 10.5 |  |
Beijing Foton Cummins Engine Company (Heavy-Duty) | Maximum |  |  |
Equity, royalty and interest income from investees |  |  |
Capacity of mechanical engines (in liters) | l | 14.5 |  |
Dongfeng Cummins Engine Company Ltd |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 50.00% |  |
Investments and advances to equity method investees | $ 148 | 134 |
Equity, royalty and interest income from investees | $ 82 | 63 | 52
Dongfeng Cummins Engine Company Ltd | Minimum |  |  |
Equity, royalty and interest income from investees |  |  |
Capacity of mechanical engines (in liters) | l | 3.9 |  |
Power of mechanical engines (in horsepower) | hp | 80 |  |
Dongfeng Cummins Engine Company Ltd | Maximum |  |  |
Equity, royalty and interest income from investees |  |  |
Capacity of mechanical engines (in liters) | l | 14.5 |  |
Power of mechanical engines (in horsepower) | hp | 760 |  |
Chongqing Cummins Engine Company Ltd |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 50.00% |  |
Investments and advances to equity method investees | $ 144 | 125 |
Equity, royalty and interest income from investees | $ 39 | 35 | 41
Cummins Scania X P I Manufacturing LLC |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 50.00% |  |
Investments and advances to equity method investees | $ 125 | 99 |
Tata Cummins Ltd |  |  |
Equity, royalty and interest income from investees |  |  |
Ownership percentage | 50.00% |  |
Investments and advances to equity method investees | $ 88 | 78 |
Other Distributors and Manufacturers |  |  |
Equity, royalty and interest income from investees |  |  |
Investments and advances to equity method investees | 503 | 441 |
Manufacturing - All other manufacturers |  |  |
Equity, royalty and interest income from investees |  |  |
Equity, royalty and interest income from investees | 149 | 134 | 88
Komatsu Cummins Chile Ltda |  |  |
Equity, royalty and interest income from investees |  |  |
Equity, royalty and interest income from investees | 32 | 31 | 28
All other distributors |  |  |
Equity, royalty and interest income from investees |  |  |
Equity, royalty and interest income from investees | 10 | 2 | 2
Cummins' Share of Equity Earnings |  |  |
Equity, royalty and interest income from investees |  |  |
Equity, royalty and interest income from investees | 424 | 378 | 271
Royalty and interest income |  |  |
Equity, royalty and interest income from investees |  |  |
Equity, royalty and interest income from investees | $ 82 | $ 74 | $ 59

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