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Net Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2010
Finite-Lived Intangible Assets [Abstract]          
Other net intangible assets, net carrying amount $ 103   $ 103   $ 102
Intangible Assets Amortization Expense [Abstract]          
Pre-tax amortization expense 3 30 6 53  
Amortization for current intangible assets, maximum forecasted     12    
Amortization for current intangible assets, thereafter forecasted     12    
Automotive [Member]
         
Finite-Lived Intangible Assets [Abstract]          
Other net intangible assets, gross carrying amount 195   195   187
Less: Accumulated Amortization (92)   (92)   (85)
Other net intangible assets, net carrying amount 103   103   102
Automotive [Member] | License and Advertising Agreements [Member]
         
Finite-Lived Intangible Assets [Abstract]          
Other net intangible assets, gross carrying amount 118   118   111
Less: Accumulated Amortization (43)   (43)   (39)
Other net intangible assets, net carrying amount 75   75   72
Footnote information [Abstract]          
Useful life - minimum (in years)     5    
Useful life - maximum (in years)     25    
Automotive [Member] | Land Rights [Member]
         
Finite-Lived Intangible Assets [Abstract]          
Other net intangible assets, gross carrying amount 23   23   23
Less: Accumulated Amortization (7)   (7)   (7)
Other net intangible assets, net carrying amount 16   16   16
Footnote information [Abstract]          
Useful life - minimum (in years)     40    
Useful life - maximum (in years)     50    
Automotive [Member] | Patents [Member]
         
Finite-Lived Intangible Assets [Abstract]          
Other net intangible assets, gross carrying amount 25   25   25
Less: Accumulated Amortization (17)   (17)   (16)
Other net intangible assets, net carrying amount 8   8   9
Footnote information [Abstract]          
Useful life - minimum (in years)     7    
Useful life - maximum (in years)     17    
Automotive [Member] | Other Intangible Assets [Member]
         
Finite-Lived Intangible Assets [Abstract]          
Other net intangible assets, gross carrying amount 29   29   28
Less: Accumulated Amortization (25)   (25)   (23)
Other net intangible assets, net carrying amount $ 4   $ 4   $ 5