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Commitments And Contingencies (Details)
Share data in Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2012
USD ($)
|
Jun. 30, 2011
USD ($)
|
Jun. 30, 2012
USD ($)
|
Jun. 30, 2012
EUR (€)
|
Jun. 30, 2011
USD ($)
|
Dec. 31, 2011
USD ($)
|
Jun. 30, 2012
Korean Labor [Member]
USD ($)
|
Jun. 30, 2012
Korean Labor [Member]
KRW
|
Jun. 30, 2012
Canadian Dealer Litigation [Member]
CAD
|
Jun. 30, 2012
UAW Lawsuit [Member]
USD ($)
|
Jun. 30, 2012
Nova Scotia Claims Litigation [Member]
GBP (£)
|
Jun. 30, 2012
Accrued Liabilities [Member]
USD ($)
|
Dec. 31, 2011
Accrued Liabilities [Member]
USD ($)
|
Jun. 30, 2012
Operating Leases [Member]
USD ($)
|
Dec. 31, 2011
Operating Leases [Member]
USD ($)
|
Jun. 30, 2012
Ally Financial Commercial Loans [Member]
USD ($)
|
Dec. 31, 2011
Ally Financial Commercial Loans [Member]
USD ($)
|
Jun. 30, 2012
Third party comercial loans and other obligations [Member]
USD ($)
|
Dec. 31, 2011
Third party comercial loans and other obligations [Member]
USD ($)
|
Jun. 30, 2012
Guarantees of Product Related Claims [Member]
USD ($)
|
Dec. 31, 2011
Guarantees of Product Related Claims [Member]
USD ($)
|
Jun. 30, 2012
Nova Scotia Claims Litigation [Member]
USD ($)
|
Jun. 30, 2012
Nova Scotia Claims Litigation [Member]
CAD
|
Jun. 30, 2012
GMNA [Member]
USD ($)
|
Jun. 30, 2011
GMNA [Member]
USD ($)
|
Jun. 30, 2012
GMNA [Member]
USD ($)
|
Jun. 30, 2011
GMNA [Member]
USD ($)
|
Jun. 30, 2012
GME [Member]
USD ($)
|
Jun. 30, 2011
GME [Member]
USD ($)
|
Jun. 30, 2012
GME [Member]
USD ($)
|
Jun. 30, 2011
GME [Member]
USD ($)
|
Jun. 30, 2012
GMIO [Member]
USD ($)
|
Jun. 30, 2011
GMIO [Member]
USD ($)
|
Jun. 30, 2012
GMIO [Member]
USD ($)
|
Jun. 30, 2011
GMIO [Member]
USD ($)
|
Jun. 30, 2012
GMCL [Member]
Nova Scotia Claims Litigation [Member]
CAD
|
Jun. 30, 2012
Minimum [Member]
USD ($)
|
Jun. 30, 2012
Maximum [Member]
USD ($)
|
|
| Guarantees [Abstract] | ||||||||||||||||||||||||||||||||||||||
| Liability Recorded | $ 0 | $ 0 | $ 4,000,000 | $ 0 | $ 7,000,000 | $ 7,000,000 | $ 55,000,000 | $ 53,000,000 | ||||||||||||||||||||||||||||||
| Maximum Liability | 9,000,000 | 26,000,000 | 8,000,000 | 24,000,000 | 246,000,000 | 210,000,000 | 932,000,000 | 838,000,000 | ||||||||||||||||||||||||||||||
| Guarantees on Operating Leases, Termination Years | 2016 to 2035 | |||||||||||||||||||||||||||||||||||||
| Guarantees on Commercial Loans, Termination Years | 2012 through 2018 or are ongoing | |||||||||||||||||||||||||||||||||||||
| Guarantees on Supplier Commitments and Other Obligations, Termination Years | 2012 through 2016 or are ongoing | 2012 through 2016 or are ongoing | ||||||||||||||||||||||||||||||||||||
| Liquidation Proceeds from Collateral | 50,000,000 | |||||||||||||||||||||||||||||||||||||
| Guarantees on Other Product Related Claims, Termination Years | 2020 to 2026 | |||||||||||||||||||||||||||||||||||||
| Other contingencies [Abstract] | ||||||||||||||||||||||||||||||||||||||
| Environmental Liability | 168,000,000 | 168,000,000 | 169,000,000 | 33,000,000 | 34,000,000 | |||||||||||||||||||||||||||||||||
| Product Liability | 574,000,000 | 574,000,000 | 514,000,000 | |||||||||||||||||||||||||||||||||||
| Other Litigation Liability | 1,221,000,000 | 1,221,000,000 | 1,196,000,000 | 152,000,000 | 175,000,000,000 | |||||||||||||||||||||||||||||||||
| Environmental Liabilities Footnote [Abstract] | ||||||||||||||||||||||||||||||||||||||
| Environmental Remediation Losses, Low Estimate | 130,000,000 | |||||||||||||||||||||||||||||||||||||
| Environmental Remediation Losses, High Estimate | 290,000,000 | |||||||||||||||||||||||||||||||||||||
| Enrironmental Remediation Years of Cost to Incur, Min | 5 years | 5 years | 5 years | |||||||||||||||||||||||||||||||||||
| Enrironmental Remediation Years of Cost to Incur, Max | 30 years | 30 years | 30 years | |||||||||||||||||||||||||||||||||||
| Other Litigation Related Liability Footnote [Abstract] | ||||||||||||||||||||||||||||||||||||||
| Indirect Tax Escrow Deposit Range | 458,000,000 | 687,000,000 | ||||||||||||||||||||||||||||||||||||
| Estimated Loss not Accrued For | 556,000,000 | 642,000,000,000 | ||||||||||||||||||||||||||||||||||||
| Litigation Claims | 750,000,000 | 450,000,000 | ||||||||||||||||||||||||||||||||||||
| Estimate of Possible Loss | 450,000,000 | |||||||||||||||||||||||||||||||||||||
| Notes Payable | 600,000,000 | |||||||||||||||||||||||||||||||||||||
| Loans Payable | 1,300,000,000 | |||||||||||||||||||||||||||||||||||||
| Liabilities Subject to Compromise | 399,000,000 | |||||||||||||||||||||||||||||||||||||
| Estimated Maximum Possible Loss | 918,000,000 | 935,000,000 | ||||||||||||||||||||||||||||||||||||
| Contingently Issuable Shares Footnote | ||||||||||||||||||||||||||||||||||||||
| General Unsecured Claims - Threshold | 35,000,000,000 | 35,000,000,000 | ||||||||||||||||||||||||||||||||||||
| Maximum Adjustment Shares | 30 | 30 | 30 | |||||||||||||||||||||||||||||||||||
| Estimated General Unsecured Claims Maximum | 42,000,000,000 | 42,000,000,000 | ||||||||||||||||||||||||||||||||||||
| Planned Spending Guarantee Footnote [Abstract] | ||||||||||||||||||||||||||||||||||||||
| Planned Spending Guarantee - Euro | 265,000,000 | |||||||||||||||||||||||||||||||||||||
| Assets Pledged as Collateral | 197,000,000 | 197,000,000 | 209,000,000 | |||||||||||||||||||||||||||||||||||
| Contract Cancellations [Abstract] | ||||||||||||||||||||||||||||||||||||||
| Gain (Loss) on Contract Termination | $ 75,000,000 | $ 30,000,000 | $ 81,000,000 | $ 30,000,000 | $ 21,000,000 | $ 21,000,000 | $ 27,000,000 | $ 21,000,000 | $ 49,000,000 | $ 3,000,000 | $ 49,000,000 | $ 3,000,000 | $ 5,000,000 | $ 6,000,000 | $ 5,000,000 | $ 6,000,000 | ||||||||||||||||||||||