v2.4.0.6
Finance Receivables, Net Accretable Yield (Details) (GM Financial [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Mar. 31, 2011
GM Financial [Member]
         
Accretable Yield [Line Items]          
Accretable Yield, Beginning Balance $ 768 $ 999 $ 737 $ 1,201  
Delinquent Finance Receivables with Income Accrual Suspended 412   412   439
Accretion of accretable yield (143) (181) (279) (383)  
Transfer from non-accretable discount 3 254 170 254  
Accretable Yield, Ending Balance $ 628 $ 1,072 $ 628 $ 1,072