|
INVESTMENTS IN EQUITY INVESTEES (Details) (USD $)
In Millions, unless otherwise specified
|
12 Months Ended |
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
| Equity, royalty and interest income from investees: |
|
|
|
| Investments and advances to equity investees |
$ 838
|
$ 734
|
$ 574
|
| Cummins share of net income |
375
|
321
|
196
|
| Royalty and interest income |
41
|
30
|
18
|
| Equity, royalty and interest income from investees |
416
|
351
|
214
|
|
Minimum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
20.00%
|
|
|
|
Maximum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
|
Distribution - North American distributors
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Investments and advances to equity investees |
127
|
114
|
|
| Cummins share of net income |
134
|
101
|
100
|
| Number of partially-owned distributors |
12
|
|
|
| Minimum ownership percentage in partially-owned distributors that are consolidated |
50.00%
|
|
|
| Number of partially-owned distributors, consolidated |
3
|
|
|
|
Distribution - North American distributors | Minimum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
30.00%
|
|
|
|
Distribution - North American distributors | Maximum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
|
Distribution - International distributors
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
| Number of partially-owned distributors |
5
|
|
|
|
Distribution - Komatsu Cummins Chile, Ltda.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Cummins share of net income |
22
|
16
|
12
|
|
Distribution - All other distributors
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Cummins share of net income |
4
|
3
|
3
|
|
Komatsu alliances
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Investments and advances to equity investees |
115
|
91
|
|
|
Komatsu alliances | Minimum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
20.00%
|
|
|
|
Komatsu alliances | Maximum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
|
Manufacturing entities | Minimum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage of joint venture included in Consolidated Financial Statements |
50.00%
|
|
|
|
Manufacturing entities | Maximum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
|
Manufacturing - Dongfeng Cummins Engine Company, Ltd.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
| Investments and advances to equity investees |
131
|
150
|
|
| Cummins share of net income |
80
|
99
|
33
|
|
Manufacturing - Dongfeng Cummins Engine Company, Ltd. | Minimum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Capacity of mechanical engines (in liters) |
4
|
|
|
| Power of mechanical engines (in horsepower) |
125
|
|
|
|
Manufacturing - Dongfeng Cummins Engine Company, Ltd. | Maximum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Capacity of mechanical engines (in liters) |
13
|
|
|
| Power of mechanical engines (in horsepower) |
545
|
|
|
|
Manufacturing - Chongqing Cummins Engine Company, Ltd.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
| Investments and advances to equity investees |
71
|
78
|
|
| Cummins share of net income |
68
|
46
|
36
|
|
Manufacturing - Shanghai Fleetguard Filter Co., Ltd.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
| Investments and advances to equity investees |
29
|
25
|
|
| Cummins share of net income |
15
|
12
|
7
|
|
Manufacturing - Tata Cummins, Ltd.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
| Investments and advances to equity investees |
49
|
49
|
|
| Cummins share of net income |
14
|
14
|
5
|
|
Manufacturing - Cummins Westport, Inc.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Cummins share of net income |
14
|
10
|
3
|
|
Manufacturing - Valvoline Cummins, Ltd.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Cummins share of net income |
7
|
8
|
7
|
|
Manufacturing - Komatsu manufacturing alliances
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Cummins share of net income |
3
|
11
|
(2)
|
| Number of manufacturing joint ventures |
2
|
|
|
| Number of design joint ventures |
1
|
|
|
|
Manufacturing - Cummins MerCruiser Diesel Marine, LLC
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Cummins share of net income |
(3)
|
(3)
|
(10)
|
| Number of companies transitioning to a strategic supply arrangement |
2
|
|
|
|
Manufacturing - Beijing Foton Cummins Engine Co., Ltd.
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
| Investments and advances to equity investees |
87
|
38
|
|
| Cummins share of net income |
(7)
|
(16)
|
(5)
|
|
Manufacturing - Beijing Foton Cummins Engine Co., Ltd. | Minimum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Capacity of mechanical engines (in liters) |
2.8
|
|
|
|
Manufacturing - Beijing Foton Cummins Engine Co., Ltd. | Maximum
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Capacity of mechanical engines (in liters) |
3.8
|
|
|
|
Manufacturing - Cummins-Scania XPI Manufacturing, LLC
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Ownership percentage |
50.00%
|
|
|
| Investments and advances to equity investees |
62
|
57
|
|
|
Manufacturing - All other manufacturers
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Cummins share of net income |
24
|
20
|
7
|
|
Other Distributors and Manufacturers
|
|
|
|
| Equity, royalty and interest income from investees: |
|
|
|
| Investments and advances to equity investees |
$ 167
|
$ 132
|
|