Equity Affiliates - Additional Information (Detail) (Getrag Corporate, Subsequent Event, Equity Method Investments, USD $) In Millions	6 Months Ended
Jun. 30, 2011
Getrag Corporate \| Subsequent Event \| Equity Method Investments
Schedule of Equity Method Investments [Line Items]
Date of entering into a definitive agreement to sell equity interests	Jul. 27, 2011
Sell amount of equity interests	$ 136
Investment balances	$ 77

This item represents the amount of net sales proceeds received on disposal of an equity method investment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 35
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=6903645&loc=d3e32847-111569

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- Definition

This item represents the carrying amount of the entity's equity method investment which has been sold. This item is used only for purposes of disclosing the calculated gain (loss) on disposal of the subject equity method investment and not for reporting the carrying value of equity method investments as presented on the entity's balance sheet. For reporting the carrying value of equity method investments presented on the entity's balance sheet, the EquityMethodInvestments (Equity Method Investments) element would be used.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Date of subsequent event occurrence or of indication that subsequent event occurred.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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