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Variable Interest Entities - Significant VIEs (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Automotive [Member]
Jun. 30, 2010
Automotive [Member]
Jun. 30, 2011
Automotive [Member]
Jun. 30, 2010
Automotive [Member]
Jun. 30, 2011
Automotive [Member]
Variable Interest Entity, Primary Beneficiary [Member]
Jun. 30, 2010
Automotive [Member]
Variable Interest Entity, Primary Beneficiary [Member]
Jun. 30, 2011
Automotive [Member]
Variable Interest Entity, Primary Beneficiary [Member]
Getrag Deutsche Venture GmbH and Co KG [Member]
Mar. 15, 2011
Automotive [Member]
Cologne Precision Forge GmbH [Member]
Jun. 30, 2011
Getrag Ford Transmissions GmbH [Member]
Mar. 15, 2011
Neumayer Tekfor GmbH [Member]
Significant Variable Interest Entities [Abstract]                            
Percent ownership of VIE                     50.00%   50.00%  
Prior VIE joint venture ownership percent                       50.00%   50.00%
Automotive sales $ 33,476 $ 32,564 $ 64,514 $ 61,458 $ 33,476 $ 32,564 $ 64,514 $ 61,458 $ 10 $ 31        
Consolidated cost of sales, selling, administrative, and interest expense of VIE's included in consolidated statement of operations                 $ 9 $ 38