v2.4.0.6

Restructuring And Other Initiatives Summary of Restructuring and Other Initiatives (Tables) | 3 Months Ended
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Mar. 31, 2012
Restructuring and Other Initiatives [Abstract] |
Schedule of Restructuring and Related Costs [Table Text Block] | The following tables summarize the reserves related to restructuring and other initiatives (excluding restructuring reserves related to dealer wind-down agreements) and charges by segment, including postemployment benefit reserves and charges (dollars in millions):
| GMNA |  | GME |  | GMIO |  | GMSA |  | Total
Balance at January 1, 2012 | $ | 884 |  |  | $ | 687 |  |  | $ | 1 |  |  | $ | 12 |  |  | $ | 1,584 |
Additions | 97 |  |  | 9 |  |  | 4 |  |  | 2 |  |  | 112 |
Interest accretion and other | 3 |  |  | 22 |  |  | (1 | ) |  | — |  |  | 24 |
Payments | (86 | ) |  | (192 | ) |  | — |  |  | (8 | ) |  | (286 | )
Revisions to estimates | (12 | ) |  | (2 | ) |  | — |  |  | — |  |  | (14 | )
Effect of foreign currency | 8 |  |  | 16 |  |  | — |  |  | — |  |  | 24 |
Balance at March 31, 2012(a) | $ | 894 |  |  | $ | 540 |  |  | $ | 4 |  |  | $ | 6 |  |  | $ | 1,444 |
| GMNA |  | GME |  | GMIO |  | GMSA |  | Total
Balance at January 1, 2011 | $ | 1,135 |  |  | $ | 664 |  |  | $ | 3 |  |  | $ | — |  |  | $ | 1,802 |
Additions | 26 |  |  | 33 |  |  | — |  |  | 1 |  |  | 60 |
Interest accretion and other | 7 |  |  | 24 |  |  | — |  |  | — |  |  | 31 |
Payments | (129 | ) |  | (205 | ) |  | (2 | ) |  | (1 | ) |  | (337 | )
Revisions to estimates | 7 |  |  | — |  |  | — |  |  | — |  |  | 7 |
Effect of foreign currency | 16 |  |  | 34 |  |  | — |  |  | — |  |  | 50 |
Balance at March 31, 2011(a) | $ | 1,062 |  |  | $ | 550 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 1,613 |
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(a) | The remaining cash payments related to these reserves for restructuring and other initiatives, including temporary layoff benefits of $357 million and $362 million at March 31, 2012 and March 31, 2011 for GMNA, primarily relate to postemployment benefits.
Dealer Wind-downs [Table Text Block] | The following table summarizes GMNA's restructuring reserves related to dealer wind-down agreements (dollars in millions):
| Three Months Ended March 31,
| 2012 |  | 2011
Balance at beginning of period | $ | 25 |  |  | $ | 144 |
Additions and revisions to estimates | — |  |  | (6 | )
Payments | (3 | ) |  | (80 | )
Balance at end of period | $ | 22 |  |  | $ | 58 |

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- Definition Tabular disclosure of restructuring and related costs by type of restructuring including the description of the restructuring costs, such as the expected cost; the costs incurred during the period; the cumulative costs incurred as of the balance sheet date; the income statement caption within which the restructuring charges recognized for the period are included; and changes to an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140864-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747 + Details
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