Represents the contingent indirect tax-related escrow deposit amount that may be required.

No definition available.

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- Definition

The total number of claims remanded to lower courts, pertaining to litigation cases.

+ References

No definition available.

+ Details

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- Definition

Estimated potential recovery from the taxing authority.

+ References

No definition available.

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- Definition

Number of group actions that have been filed pertaining to a loss contingency.

+ References

No definition available.

+ Details

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- Definition

The number of shareholders filing an appeal of the decision approving the settlement.

+ References

No definition available.

+ Details

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- Definition

Period after the expiration of deferral-of-prosecution period, during which a dismissal of the prosecution can occur.

+ References

No definition available.

+ Details

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Term of the deferral-of-prosecution period.

+ References

No definition available.

+ Details

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- Definition

Number of employee involved in the case related to which supreme court rendered its decision.

+ References

No definition available.

+ Details

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- Definition

Number of state attorney generals involved in inquiries, investigations, subpoenas and requests for information in connection with recalls.

+ References

No definition available.

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- Definition

Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

+ References

+ Details

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of damages paid to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

No definition available.

+ Details

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- Definition

Number of pending claims pertaining to a loss contingency.

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- Definition

The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

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Commitments and Contingencies Litigation-Related Liability and Tax Administrative Matters (Details) CAD in Millions, $ in Millions						6 Months Ended
	May 23, 2016 USD ($)	Sep. 16, 2015 USD ($)	Nov. 23, 2012 employee	Sep. 29, 2010 action employee	Feb. 12, 2010 dealer	Jun. 30, 2017 CAD attorney_general dealer shareholder	Jul. 17, 2017 action	Jun. 30, 2017 USD ($) case	Dec. 31, 2016 USD ($)	Nov. 27, 2015 case	Nov. 26, 2015 case
Minimum [Member]
Loss Contingencies [Line Items]
Indirect tax-related escrow deposit								$ 200
Maximum [Member]
Loss Contingencies [Line Items]
Indirect tax-related escrow deposit								600
Indirect Tax Matters [Member]
Loss Contingencies [Line Items]
Estimate of possible loss								900
BRAZIL [Member] \| Foreign Tax Authority [Member]
Loss Contingencies [Line Items]
Estimated potential recovery								$ 1,400
Ignition Switch Recall Litigations [Member]
Loss Contingencies [Line Items]
Number of state attorneys general \| attorney_general						49
Ignition Switch Recall Litigations - Economic-loss cases [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of pending claims \| action							100
Ignition Switch Recall Litigations - Civil Actions Brought by Governmental Entities [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Number of pending claims \| action							2
Ignition Switch Recall Litigations - Shareholder Derivative Action [Member] \| Eastern District of Michigan [Member] \| Consolidated Litigation [Member]
Loss Contingencies [Line Items]
Number of pending claims \| case								3
Ignition Switch Recall Litigations - Shareholder Derivative Action [Member] \| Wayne County, Michigan [Member] \| Consolidated Litigation [Member]
Loss Contingencies [Line Items]
Number of pending claims \| case								2
Ignition Switch Recall Litigations - Shareholder Class Action [Member]
Loss Contingencies [Line Items]
Litigation settlement amount	$ 300
Number of shareholders filing an appeal \| shareholder						1
Ignition Switch Recall Litigations - Investigation by the Office [Member]
Loss Contingencies [Line Items]
Damages paid		$ 900
Prosecution deferral period		3 years
Period after the expiration of the period of deferral		30 days
GM Canada Dealer Litigation [Member]
Loss Contingencies [Line Items]
Number of plaintiffs \| dealer					200	181
Damages sought \| CAD						CAD 750
Korea Wage Litigation - Hourly [Member]
Loss Contingencies [Line Items]
Number of plaintiffs \| employee				10,000
Number of group actions filed \| action				8
Number of employees in the case \| employee			5
Estimate of possible loss								$ 547
Korea Wage Litigation - Salaried [Member]
Loss Contingencies [Line Items]
Estimate of possible loss								167
Number of claims remanded \| case										1	1
Accrued liabilities and Other liabilities [Member]
Loss Contingencies [Line Items]
Estimated litigation liability								$ 1,200	$ 1,200