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Other Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Summary of other assets
Preproduction costs related to long-term supply agreements with contractual guarantee for reimbursement	$ 301	$ 309
Long-term receivables	176	129
Patents and licenses, net	30	33
Unrealized gain on cash flow hedges [note 21]	15	40
Other, net [note 7]	72	107
Total other assets	$ 594	$ 618

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Unrealized gain on cash flow hedges.

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The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet.

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The sum of the carrying amounts, as of the balance sheet date, of assets which have not been itemized or categorized in the footnotes to the financial statements and are a component of Other Assets (OtherAssets).

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The carrying amount as of the balance sheet date of capitalized preproduction costs incurred on long-term supply arrangements, including recoverable costs to design and develop products.

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