v2.4.0.6

Securitizations (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2012
Securitizations (Abstract) |
Securitizations [Table Text Block] | The following table summarizes securitization activity and cash flows from consolidated special purpose entities (SPEs) used for securitizations (dollars in millions):
| Three Months Ended |  | Six Months Ended
| June 30, 2012 |  | June 30, 2011 |  | June 30, 2012 |  | June 30, 2011
Receivables securitized | $ | 2,433 |  |  | $ | 2,069 |  |  | $ | 4,349 |  |  | $ | 2,918 |
Net proceeds from securitization | $ | 2,300 |  |  | $ | 1,950 |  |  | $ | 4,100 |  |  | $ | 2,750 |
Servicing fees |  |  |  |  |  |  |  |  |  |  |
Variable interest entities | $ | 59 |  |  | $ | 49 |  |  | $ | 118 |  |  | $ | 98 |
Net distributions from trusts |  |  |  |  |  |  |  |  |  |  |
Variable interest entities | $ | 465 |  |  | $ | 291 |  |  | $ | 916 |  |  | $ | 434 |

X
- Details
Name: | gm_SecuritizationsAbstract
Namespace Prefix: | gm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Summary of securitization activity and cash flows from special purpose entties used for securitizations + References No definition available. + Details
Name: | gm_SecuritizationsTableTextBlock
Namespace Prefix: | gm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration