This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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-Name Accounting Principles Board Opinion (APB)

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-Name Emerging Issues Task Force (EITF)

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+ Details

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References+ Details

Principal Components of Investments In Equity Affiliates (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended							6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Dongfeng Dana Axle Co., Ltd.	Jun. 30, 2011 Dongfeng Dana Axle Co., Ltd.	Jun. 30, 2012 Bendix Spicer Foundation Brake, LLC	Jun. 30, 2012 Axles India Limited	Jun. 30, 2012 Dana Rexroth Transmission Systems S.r.l.	Jun. 30, 2012 All others as a group
Schedule of Equity Method Investments [Line Items]
Ownership Percentage			50.00%	50.00%	20.00%	48.00%	50.00%
Ownership Percentage								Various
Investment in affiliates carried at cost	Various
Investments in Equity Affiliates	$ 200		$ 147		$ 32	$ 8	$ 5	$ 8
Investment in affiliates carried at cost	2
Investment in affiliates	$ 202	$ 198