General Motors (GM) 10-K 6 Feb 14 2013 Q4 Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Jan. 30, 2014	Jun. 30, 2013
Document Entity Information [Abstract]	'	'	'
Entity Registrant Name	'GENERAL MOTORS COMPANY	'	'
Entity Central Index Key	'0001467858	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Document Type	'10-K	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'Q4	'	'
Document Period End Date	31-Dec-13	'	'
Amendment Flag	'false	'	'
Entity Common Stock, Shares Outstanding	'	1,589,788,282	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Public Float	'	'	$46.10

Consolidated_Income_Statements

Consolidated Income Statements (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net sales and revenue	'	'	'
Automotive	$152,092	$150,295	$148,866
GM Financial	3,335	1,961	1,410
Total	155,427	152,256	150,276
Costs and expenses	'	'	'
Automotive cost of sales	134,925	140,236	130,386
GM Financial operating and other expenses	2,448	1,207	785
Automotive selling, general and administrative expense	12,382	14,031	12,163
Goodwill impairment charges	541	27,145	1,286
Total costs and expenses	150,296	182,619	144,620
Operating income (loss)	5,131	-30,363	5,656
Interest Expense	1,049	772	744
Interest income and other non-operating income, net	1,063	845	851
Gain (loss) on extinguishment of debt	-212	-250	18
Equity income and gain on investments	1,810	1,562	3,192
Income (loss) before income taxes	7,458	-28,695	9,177
Income tax expense (benefit)	2,127	-34,831	-110
Net income	5,331	6,136	9,287
Net (income) loss attributable to noncontrolling interests	15	52	-97
Net income (loss) attributable to stockholders	5,346	6,188	9,190
Net income attributable to common stockholders	3,770	4,859	7,585
Basic Earnings per Share	'	'	'
Basic earnings per common share	$2.71	$3.10	$4.94
Weighted-average common shares outstanding	1,393	1,566	1,536
Diluted Earnings per Share	'	'	'
Diluted earnings per common share	$2.38	$2.92	$4.58
Weighted-average common shares outstanding	1,676	1,675	1,668
Automotive [Member]	'	'	'
Costs and expenses	'	'	'
Goodwill impairment charges	541	27,145	'
Interest Expense	334	489	540
Gain (loss) on extinguishment of debt	($212)	($250)	$18

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]	'	'	'
Net income	$5,331	$6,136	$9,287
Other comprehensive income (loss), net of tax	'	'	'
Foreign currency translation adjustments	-733	-103	-183
Cash flow hedging gains (losses), net	0	-2	25
Unrealized gains (losses) on securities, net	-39	45	1
Defined benefit plans, net	5,693	-2,120	-6,958
Other Comprehensive Income (Loss), Net of Tax	4,921	-2,180	-7,115
Comprehensive income	10,252	3,956	2,172
Comprehensive (income) loss attributable to noncontrolling interests	33	41	-87
Comprehensive income attributable to stockholders	$10,285	$3,997	$2,085

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
ASSETS	'	'
Cash and cash equivalents	$20,021,000,000	$18,422,000,000
Marketable securities	8,972,000,000	8,988,000,000
Restricted cash and marketable securities	1,247,000,000	686,000,000
Accounts and notes receivable, net	8,535,000,000	10,395,000,000
Inventories	14,039,000,000	14,714,000,000
Equipment on operating leases, net	2,398,000,000	1,782,000,000
Deferred income taxes	10,349,000,000	9,429,000,000
Other current assets	1,662,000,000	1,536,000,000
Total current assets	81,501,000,000	69,996,000,000
Restricted cash and marketable securities	829,000,000	682,000,000
Equity in net assets of nonconsolidated affiliates	8,094,000,000	6,883,000,000
Property, net	25,867,000,000	24,196,000,000
Goodwill	1,560,000,000	1,973,000,000
Intangible assets, net	5,668,000,000	6,809,000,000
Deferred income taxes	22,736,000,000	27,922,000,000
Other assets	2,352,000,000	2,358,000,000
Total non-current assets	84,843,000,000	79,426,000,000
Total Assets	166,344,000,000	149,422,000,000
LIABILITIES AND EQUITY	'	'
Accounts payable (principally trade)	23,621,000,000	25,166,000,000
Accrued liabilities	24,633,000,000	23,308,000,000
Total current liabilities	62,412,000,000	53,992,000,000
Postretirement benefits other than pensions	5,897,000,000	7,309,000,000
Pensions	19,483,000,000	27,420,000,000
Other liabilities and deferred income taxes	13,353,000,000	13,169,000,000
Total non-current liabilities	60,758,000,000	58,430,000,000
Total Liabilities	123,170,000,000	112,422,000,000
Commitments and contingencies	'	'
Common stock	15,000,000	14,000,000
Additional paid-in capital	28,780,000,000	23,834,000,000
Retained earnings	13,816,000,000	10,057,000,000
Accumulated other comprehensive income (loss)	-3,113,000,000	-8,052,000,000
Total stockholders' equity	42,607,000,000	36,244,000,000
Noncontrolling interests	567,000,000	756,000,000
Total Equity	43,174,000,000	37,000,000,000
Total Liabilities and Equity	166,344,000,000	149,422,000,000
Series A Preferred Stock [Member]	'	'
LIABILITIES AND EQUITY	'	'
Preferred stock	3,109,000,000	5,536,000,000
Series B Preferred Stock [Member]	'	'
LIABILITIES AND EQUITY	'	'
Preferred stock	0	4,855,000,000
Automotive [Member]	'	'
ASSETS	'	'
Goodwill	138,000,000	695,000,000
LIABILITIES AND EQUITY	'	'
Short-term debt and current portion of long-term debt	564,000,000	1,748,000,000
Long-term debt	6,573,000,000	3,424,000,000
GM Financial [Member]	'	'
ASSETS	'	'
GM Financial receivables, net, current	14,278,000,000	4,044,000,000
GM Financial receivables, net, non-current	14,354,000,000	6,954,000,000
Goodwill	1,422,000,000	1,278,000,000
Equipment on operating leases, net	3,383,000,000	1,649,000,000
LIABILITIES AND EQUITY	'	'
Short-term debt and current portion of long-term debt	13,594,000,000	3,770,000,000
Long-term debt	$15,452,000,000	$7,108,000,000

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets Parenthetical (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, except Per Share data, unless otherwise specified
Preferred Stock, Par or Stated Value Per Share	$0.01	$0.01
Common Stock, Par or Stated Value Per Share	$0.01	$0.01
Allowance for accounts and notes receivable	$344	$311
GM Financial [Member]	'	'
Gross Finance Receivables Transferred to Special Purpose Entities	10,001	3,444
Gross Finance Receivables Transferred to Special Purpose Entities Noncurrent	11,216	6,458
Operating Lease Assets, Transferred to Special Purpose Entities	1,803	540
Short-term Debt [Member] | Automotive [Member]	'	'
Non-Recourse Debt	219	228
Long-term Debt [Member] | Automotive [Member]	'	'
Non-Recourse Debt	23	122
Variable Interest Entity, Primary Beneficiary [Member] | Short-term Debt [Member] | GM Financial [Member]	'	'
Securitization Notes Payable and Other Credit Facilities	10,088	3,770
Variable Interest Entity, Primary Beneficiary [Member] | Long-term Debt [Member] | GM Financial [Member]	'	'
Securitization Notes Payable and Other Credit Facilities	$9,330	$5,608

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
				Series B Preferred Stock [Member]	Series B Preferred Stock [Member]	Series B Preferred Stock [Member]	Canadian Hourly Healthcare Plan [Member]	Canadian Hourly Healthcare Plan [Member]	Canadian Hourly Healthcare Plan [Member]
Cash flows from operating activities	'	'	'	'	'	'	'	'	'
Net income	$5,331	$6,136	$9,287	'	'	'	'	'	'
Depreciation, impairment charges and amortization expense	8,041	38,762	7,427	'	'	'	'	'	'
Foreign currency remeasurement and transaction losses	350	117	55	'	'	'	'	'	'
Amortization of discount and issuance costs on debt issues	114	188	160	'	'	'	'	'	'
Undistributed earnings of nonconsolidated affiliates and gain on investments	-92	-179	-1,947	'	'	'	'	'	'
Pension contributions and OPEB payments	-1,458	-3,759	-2,269	'	'	'	'	'	'
Pension and OPEB (income) expense, net	638	3,232	-755	'	'	'	'	'	'
(Gains) losses on extinguishment of debt	212	250	-18	'	'	'	'	'	'
Provisions (benefits) for deferred taxes	1,561	-35,561	-318	'	'	'	'	'	'
Change in other operating assets and liabilities	-1,326	630	-4,122	'	'	'	'	'	'
Other operating activities	-741	789	666	'	'	'	'	'	'
Net Cash Provided by (Used in) Operating Activities	12,630	10,605	8,166	'	'	'	'	'	'
Cash flows from investing activities	'	'	'	'	'	'	'	'	'
Expenditures for property	-7,565	-8,068	-6,249	'	'	'	'	'	'
Available-for-sale marketable securities, acquisitions	-6,754	-4,650	-20,535	'	'	'	'	'	'
Trading marketable securities, acquisitions	-3,214	-6,234	-6,571	'	'	'	'	'	'
Available-for-sale marketable securities, liquidations	3,566	10,519	15,825	'	'	'	'	'	'
Trading marketable securities, liquidations	6,538	7,267	660	'	'	'	'	'	'
Acquisition of companies, net of cash acquired	-2,623	-44	-53	'	'	'	'	'	'
Proceeds from sale of business units/investments, net of cash disposed	896	18	4,821	'	'	'	'	'	'
Increase in restricted cash and marketable securities	-984	-661	-728	'	'	'	'	'	'
Decrease in restricted cash and marketable securities	1,107	1,526	2,067	'	'	'	'	'	'
Purchases and funding of finance receivables	-30,727	-6,789	-5,012	'	'	'	'	'	'
Principal collections and recoveries on finance receivables	27,444	4,674	3,719	'	'	'	'	'	'
Purchases of leased vehicles, net	-2,254	-1,050	-837	'	'	'	'	'	'
Proceeds from termination of leased vehicles	217	59	47	'	'	'	'	'	'
Other investing activities	-9	-72	106	'	'	'	'	'	'
Net Cash Provided by (Used in) Investing Activities	-14,362	-3,505	-12,740	'	'	'	'	'	'
Cash flows from financing activities	'	'	'	'	'	'	'	'	'
Net increase (decrease) in short-term debt	156	-247	131	'	'	'	'	'	'
Proceeds from issuance of debt (original maturities greater than three months)	28,041	9,036	9,034	'	'	'	'	'	'
Payments on debt (original maturities greater than three months)	-20,191	-7,377	-8,468	'	'	'	'	'	'
Payments to purchase stock	-2,438	-5,098	0	'	'	'	'	'	'
Dividends paid (including charge related to purchase of Series A Preferred Stock)	-1,687	-939	-916	'	'	'	'	'	'
Other financing activities	-150	-116	-139	'	'	'	'	'	'
Net Cash Provided by (Used in) Financing Activities	3,731	-4,741	-358	'	'	'	'	'	'
Effect of exchange rate changes on cash and cash equivalents	-400	-8	-253	'	'	'	'	'	'
Net increase (decrease) in cash and cash equivalents	1,599	2,351	-5,185	'	'	'	'	'	'
Cash and cash equivalents at beginning of period	18,422	16,071	21,256	'	'	'	'	'	'
Cash and cash equivalents at end of period	20,021	18,422	16,071	'	'	'	'	'	'
Significant Non-cash Activity	'	'	'	'	'	'	'	'	'
Non-cash property additions	3,224	3,879	3,689	'	'	'	'	'	'
Contribution of common stock to U.S. hourly and salaried pension plans	'	'	1,864	'	'	'	'	'	'
Notes issued to settle CAW hourly retiree healthcare plan	'	'	'	'	'	'	'	'	1,122
Mandatory conversion of Series B Preferred Stock into common stock	$0	($1)	'	$4,854	'	'	'	'	'

Consolidated_Statements_Of_Equ

Consolidated Statements Of Equity (USD $)	Total	Series A Preferred Stock [Member]	Series B Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (loss) [Member]	Noncontrolling Interests [Member]
In Millions
Balance at Dec. 31, 2010	$37,159	$5,536	$4,855	$15	$24,257	$266	$1,251	$979
Effect of adoption of amendments in ASU 2010-28 regarding goodwill impairment	-1,466	'	'	'	'	-1,466	'	'
Net income	9,287	'	'	'	'	9,190	'	97
Other comprehensive income (loss)	'	'	'	'	'	'	-7,105	'
Other comprehensive income (loss)	-7,115	'	'	'	'	'	'	-10
Purchase of noncontrolling interest shares	-100	'	'	'	41	'	-7	-134
Exercise of common stock warrants	11	'	'	'	11	'	'	'
Stock based compensation	219	'	'	'	219	'	'	'
Pension plan stock contribution	1,864	'	'	1	1,863	'	'	'
Cash dividends on Series A Preferred Stock and cumulative dividends on Series B Preferred Stock	-859	'	'	'	'	-859	'	'
Dividends declared or paid to noncontrolling interest	-54	'	'	'	'	'	'	-54
Other	45	'	'	'	'	52	'	-7
Balance at Dec. 31, 2011	38,991	5,536	4,855	16	26,391	7,183	-5,861	871
Net income	6,136	'	'	'	'	6,188	'	-52
Other comprehensive income (loss)	'	'	'	'	'	'	-2,191	'
Other comprehensive income (loss)	-2,180	'	'	'	'	'	'	11
Purchase and retirement of common stock	-5,109	'	'	-2	-2,652	-2,455	'	'
Exercise of common stock warrants	5	'	'	'	5	'	'	'
Stock based compensation	89	'	'	'	89	'	'	'
Conversion of Series B Preferred Stock to common stock	1	'	'	'	1	'	'	'
Cash dividends on Series A Preferred Stock and cumulative dividends on Series B Preferred Stock	-859	'	'	'	'	-859	'	'
Dividends declared or paid to noncontrolling interest	-80	'	'	'	'	'	'	-80
Other	6	'	'	'	'	'	'	6
Balance at Dec. 31, 2012	37,000	5,536	4,855	14	23,834	10,057	-8,052	756
Net income	5,331	'	'	'	'	5,346	'	-15
Other comprehensive income (loss)	'	'	'	'	'	'	4,939	'
Other comprehensive income (loss)	4,921	'	'	'	'	'	'	-18
Purchase and cancellation of Series A Preferred Stock	-2,427	-2,427	'	'	'	'	'	'
Exercise of common stock warrants	3	'	'	'	3	'	'	'
Stock based compensation	75	'	'	'	75	'	'	'
Conversion of Series B Preferred Stock to common stock	0	'	-4,855	1	4,854	'	'	'
Cash dividends paid on Series A Preferred Stock, charge related to purchase of Series A Preferred Stock and dividends on Series B Preferred Stock	-1,587	'	'	'	'	-1,587	'	'
Dividends declared or paid to noncontrolling interest	-82	'	'	'	'	'	'	-82
Other	-60	'	'	'	14	'	'	-74
Balance at Dec. 31, 2013	$43,174	$3,109	$0	$15	$28,780	$13,816	($3,113)	$567

Nature_Of_Operations_and_Basis

Nature Of Operations and Basis of Presentation	12 Months Ended
	Dec. 31, 2013
Nature of Operations and Basis of Presentation [Abstract]	'
Nature of Operations and Basis of Presentation [Text Block]	'
	Nature of Operations and Basis of Presentation
	General Motors Company was formed in 2009 originally as a Delaware limited liability company, Vehicle Acquisition Holdings LLC, and subsequently converted to a Delaware corporation, NGMCO, Inc. This company, which on July 10, 2009 acquired substantially all of the assets and assumed certain liabilities of General Motors Corporation through a Section 363 sale under Chapter 11 of the U.S. Bankruptcy Code (363 Sale) and changed its name to General Motors Company, is sometimes referred to in these consolidated financial statements for the periods on or subsequent to July 10, 2009 as “we,” “our,” “us,” “ourselves,” the “Company,” “General Motors,” or “GM.” General Motors Corporation is sometimes referred to in these consolidated financial statements, for the periods on or before July 9, 2009, as “Old GM” as it is the predecessor entity solely for accounting and financial reporting purposes. Old GM was renamed Motors Liquidation Company (MLC), which was dissolved on December 15, 2011 and transferred its remaining assets and liabilities to the Motors Liquidation Company GUC Trust (GUC Trust).
	We design, build and sell cars, trucks and automobile parts worldwide. We also provide automotive financing services through General Motors Financial Company, Inc. (GM Financial). We analyze the results of our business through our five segments: GM North America (GMNA), GM Europe (GME), GM International Operations (GMIO), GM South America (GMSA) and GM Financial. Nonsegment operations are classified as Corporate. Corporate includes certain centrally recorded income and costs, such as interest, income taxes and corporate expenditures and certain nonsegment specific revenues and expenses.
	Principles of Consolidation
	The consolidated financial statements include our accounts and those of our subsidiaries that we control due to ownership of a majority voting interest and our consolidated variable interest entities (VIEs) of which we are the primary beneficiary. We continually evaluate our involvement with VIEs to determine whether we have variable interests and are the primary beneficiary of the VIE. When these criteria are met, we are required to consolidate the VIE. Our share of earnings or losses of nonconsolidated affiliates is included in our consolidated operating results using the equity method of accounting when we are able to exercise significant influence over the operating and financial decisions of the affiliate. We use the cost method of accounting if we are not able to exercise significant influence over the operating and financial decisions of the affiliate. All intercompany balances and transactions have been eliminated in consolidation.
	Certain prior year amounts were reclassified to conform to our current year presentation.
	Use of Estimates in the Preparation of the Financial Statements
	The consolidated financial statements are prepared in conformity with U.S. GAAP, which requires the use of estimates, judgments and assumptions that affect the amounts of assets and liabilities at the reporting date and the amounts of revenue and expenses in the periods presented. We believe that the accounting estimates employed are appropriate and the resulting balances are reasonable; however, due to the inherent uncertainties in making estimates actual results could differ from the original estimates, requiring adjustments to these balances in future periods.
	GM Financial
	The amounts presented for GM Financial have been adjusted to include the effect of our tax attributes on GM Financial's deferred tax positions and provision for income taxes since the date of acquisition, which are not applicable to GM Financial on a stand-alone basis, and to eliminate the effect of transactions between GM Financial and the other members of the consolidated group. Accordingly, the amounts presented will differ from those presented by GM Financial on a stand-alone basis.

Significant_Accounting_Policie

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Significant Accounting Policies [Text Block]	'
	Significant Accounting Policies
	The accounting policies which follow are utilized by our automotive and automotive financing operations, unless otherwise indicated.
	Revenue Recognition
	Automotive
	Automotive net sales and revenue are primarily composed of revenue generated from the sale of vehicles. Vehicle sales are recorded when title and all risks and rewards of ownership have passed to our customers. For the majority of our automotive sales this occurs when a vehicle is released to the carrier responsible for transporting to a dealer and when collectability is reasonably assured. Vehicle sales are recorded when the vehicle is delivered to the dealer in most remaining cases. Provisions for recurring dealer and customer sales and leasing incentives, consisting of allowances and rebates, are recorded as reductions to Automotive net sales and revenue at the time of vehicle sales. All other incentives, allowances and rebates related to vehicles previously sold are recorded as reductions to Automotive net sales and revenue when announced.
	Vehicle sales to daily rental car companies with guaranteed repurchase obligations are accounted for as operating leases. Estimated lease revenue is recorded ratably over the estimated term of the lease based on the difference between net sales proceeds and the guaranteed repurchase amount. The difference between the cost of the vehicle and estimated residual value is depreciated on a straight-line basis over the estimated term of the lease.
	Automotive Financing - GM Financial
	Finance income earned on receivables is recognized using the effective interest method for consumer financing receivables and accrual method for commercial financing receivables. Fees and commissions (including incentive payments) received and direct costs of originating loans are deferred and amortized over the term of the related finance receivables using the effective interest method and are removed from the consolidated balance sheets when the related finance receivables are sold, charged off or paid in full. Accrual of finance charge income is generally suspended on accounts that are more than 60 days delinquent, accounts in bankruptcy and accounts in repossession. Payments received on nonaccrual loans are first applied to any fees due, then to any interest due and then any remaining amounts are recorded to principal. Interest accrual generally resumes once an account has received payments bringing the delinquency to less than 60 days past due.
	Income from operating lease assets, which includes lease origination fees, net of lease origination costs and incentives, is recorded as operating lease revenue on a straight-line basis over the term of the lease agreement.
	Advertising and Promotion Expenditures
	Advertising and promotion expenditures, which are expensed as incurred, were $5.5 billion, $5.4 billion and $5.2 billion in the years ended December 31, 2013, 2012 and 2011.
	Research and Development Expenditures
	Research and development expenditures, which are expensed as incurred, were $7.2 billion, $7.4 billion and $8.1 billion in the years ended December, 31 2013, 2012 and 2011.
	Cash Equivalents
	Cash equivalents are defined as short-term, highly-liquid investments with original maturities of 90 days or less.
	Allowance for Doubtful Accounts
	The following table summarizes activity in our allowance for doubtful accounts and notes receivable (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Balance at beginning of period	$	311		$	331		$	252
	Amounts charged (credited) to costs and expenses	61			(10		)	159
	Deductions	(24		)	(46		)	(83		)
	Other	(4		)	36			3
	Balance at end of period	$	344		$	311		$	331
	Fair Value Measurements
	A three-level valuation hierarchy, based upon observable and unobservable inputs, is used for fair value measurements. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions based on the best evidence available. These two types of inputs create the following fair value hierarchy:
	•	Level 1 - Quoted prices for identical instruments in active markets;
	•	Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose significant inputs are observable; and
	•	Level 3 - Instruments whose significant inputs are unobservable.
	Financial instruments are transferred in and/or out of Level 1, 2 or 3 at the beginning of the accounting period in which there is a change in the valuation inputs.
	Marketable Securities
	We classify marketable securities as available-for-sale or trading. Various factors, including turnover of holdings and investment guidelines, are considered in determining the classification of securities. Available-for-sale securities are recorded at fair value with unrealized gains and losses recorded net of related income taxes in Accumulated other comprehensive loss until realized. Trading securities are recorded at fair value with changes in fair value recorded in Interest income and other non-operating income, net. We determine realized gains and losses for all securities using the specific identification method.
	We measure the fair value of our marketable securities using a market approach where identical or comparable prices are available and an income approach in other cases. Securities are classified in Level 1 when quoted prices in an active market for identical securities are available. If quoted market prices are not available, fair values of securities are determined using prices from a pricing service, pricing models, quoted prices of securities with similar characteristics or discounted cash flow models and are generally classified in Level 2. These prices represent non-binding quotes. U.S. government and agency securities, sovereign debt and corporate debt securities are classified in Level 2. Our pricing service utilizes industry-standard pricing models that consider various inputs, including benchmark yields, reported trades, broker/dealer quotes, issuer spreads and benchmark securities as well as other relevant economic measures. We conduct an annual review of our pricing service. This review includes discussion and analysis of the inputs used by the pricing service to provide prices for the types of securities we hold. These inputs include prices for comparable securities, bid/ask quotes, interest rate yields and prepayment speeds. Based on our review we believe the prices received from our pricing service are a reliable representation of exit prices. Securities are classified in Level 3 in certain cases where there are unobservable inputs to the valuation in the marketplace. Level 3 financial instruments typically include, in addition to the unobservable inputs, observable components that are validated to external sources.
	An evaluation is made quarterly to determine if unrealized losses related to non-trading investments in securities are other-than-temporary. Factors considered in determining whether a loss on a marketable security is other-than-temporary include: (1) the length of time and extent to which the fair value has been below cost; (2) the financial condition and near-term prospects of the issuer; and (3) the intent to sell or likelihood to be forced to sell the security before any anticipated recovery.
	Finance Receivables
	As the result of our October 2010 acquisition of GM Financial and GM Financial's acquisition of the Ally Financial, Inc. (Ally Financial) international operations, finance receivables are reported in two portfolios: pre-acquisition and post-acquisition portfolios. The pre-acquisition finance receivables portfolio consists of finance receivables that were considered to have had deterioration in credit quality at the time they were acquired with the acquisition of GM Financial or the acquisition of the Ally Financial international operations. The pre-acquisition portfolio will decrease over time with the amortization of the acquired receivables. The post-acquisition finance receivables portfolio consists of finance receivables that were considered to have had no deterioration in credit quality at the time they were acquired with the acquisition of the Ally Financial international operations and finance receivables originated since the acquisitions of GM Financial and the Ally Financial international operations. The post-acquisition portfolio is expected to grow over time as GM Financial originates new receivables.
	Pre-Acquisition Consumer Finance Receivables
	At the time of acquisitions the receivables were recorded at fair value. The pre-acquisition finance receivables were acquired at a discount, which contains two components: a non-accretable difference and an accretable yield. The accretable yield is recorded as finance charge income over the life of the acquired receivables.
	Any deterioration in the performance of the pre-acquisition finance receivables from their expected performance will result in an incremental provision for loan losses. Improvements in the performance of the pre-acquisition finance receivables will result first in the reversal of any incremental related allowance for loan losses and then in a transfer of the excess from the non-accretable difference to accretable yield, which will be recorded as finance charge income over the remaining life of the receivables.
	Post-Acquisition Consumer Finance Receivables and Allowance for Loan Losses
	Post-acquisition finance receivables originated since the acquisitions of GM Financial and the Ally Financial international operations are carried at amortized cost, net of allowance for loan losses.
	The component of the allowance for consumer finance receivables that are collectively evaluated for impairment is based on a statistical calculation supplemented by management judgment. GM Financial uses a combination of forecasting models to determine the allowance for loan losses. Factors that are considered when estimating the allowance include loss confirmation period, historical delinquency migration to loss, probability of default and loss given default. The loss confirmation period is a key assumption within the models, which represents the average amount of time between when a loss event first occurs to when the receivable is charged-off.
	Consumer finance receivables that become classified as troubled debt restructurings (TDRs) are separately assessed for impairment. A specific allowance is estimated based on the present value of the expected future cash flows of the receivable discounted at the loan's original effective interest rate.
	The finance receivables acquired with Ally Financial international operations that were considered to have no deterioration in credit quality at the time of acquisition were recorded at fair value. The purchase discount will accrete to income over the life of the receivables, based on contractual cash flows, using the effective interest method. Provisions for loan losses are charged to operations in amounts equal to net credit losses for the period. Any subsequent deterioration in the performance of the acquired receivables will result in an incremental provision for loan losses.
	Inventory
	Inventories are stated at the lower of cost or market. Market, which represents selling price less cost to sell, considers general market and economic conditions, periodic reviews of current profitability of vehicles, product warranty costs and the effect of current and expected incentive offers at the balance sheet date. Market for off-lease and other vehicles is current auction sales proceeds less disposal and warranty costs. Productive material, work in process, supplies and service parts are reviewed to determine if inventory quantities are in excess of forecasted usage or if they have become obsolete.
	Equipment on Operating Leases, net
	Equipment on operating leases, net is reported at cost, less accumulated depreciation, net of origination fees or costs, and lease incentives. Estimated income from operating lease assets, which includes lease origination fees, net of lease origination costs, is recorded as operating lease revenue on a straight-line basis over the term of the lease agreement. Leased vehicles are depreciated on a straight-line basis to an estimated residual value over the term of the lease agreements.
	We have significant investments in vehicles in operating lease portfolios, which are composed of vehicle leases to retail customers with lease terms of up to 60 months and vehicles leased to rental car companies with lease terms that average eight months or less. We are exposed to changes in the residual values of those assets. For impairment purposes the residual values represent estimates of the values of the vehicles leased at the end of the lease contracts and are determined based on forecasted auction proceeds when there is a reliable basis to make such a determination. Realization of the residual values is dependent on the future ability to market the vehicles under the prevailing market conditions. The adequacy of the estimate of the residual value is evaluated over the life of the lease and adjustments may be made to the extent the expected value of the vehicle at lease termination changes. Adjustments may be in the form of revisions to the depreciation rate or recognition of an impairment charge. Impairment is determined to exist if the expected future cash flows, which include estimated residual values, are lower than the carrying amount of the vehicles leased. If the carrying amount is considered impaired, an impairment charge is recorded for the amount by which the carrying amount exceeds the fair value. Fair value is determined primarily using the anticipated cash flows, including estimated residual values.
	In our Automotive operations when a leased vehicle is returned the asset is reclassified from Equipment on operating leases, net to Inventories at the lower of cost or estimated selling price, less cost to sell. In our Automotive Finance operations when a leased vehicle is returned or repossessed the asset is recorded in Other assets at the lower of cost or estimated selling price, less costs to sell. Upon disposition a gain or loss is recorded for any difference between the net book value of the leased asset and the proceeds from the disposition of the asset.
	Impairment charges related to Equipment on operating leases, net are recorded in Automotive cost of sales or GM Financial operating and other expenses.
	Valuation of Cost and Equity Method Investments
	When events and circumstances warrant, investments accounted for under the cost or equity method of accounting are evaluated for impairment. An impairment charge is recorded whenever a decline in value of an investment below its carrying amount is determined to be other-than-temporary. In determining if a decline is other-than-temporary, factors such as the length of time and extent to which the fair value of the investment has been less than the carrying amount of the investment, the near-term and longer-term operating and financial prospects of the affiliate and the intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery are considered. Impairment charges related to equity method investments are recorded in Equity income and gain on investments. Impairment charges related to cost method investments are recorded in Interest income and other non-operating income, net.
	Property, net
	Property, plant and equipment, including internal use software, is recorded at cost. Major improvements that extend the useful life or add functionality of property are capitalized. The gross amount of assets under capital leases is included in property, plant and equipment. Expenditures for repairs and maintenance are charged to expense as incurred. We depreciate all depreciable property using the straight-line method. Leasehold improvements are amortized over the period of lease or the life of the asset, whichever is shorter. The amortization of the assets under capital leases is included in depreciation expense. Upon retirement or disposition of property, plant and equipment, the cost and related accumulated depreciation are removed from the accounts and any resulting gain or loss is recorded in earnings. Impairment charges related to property are recorded in Automotive cost of sales, Automotive selling, general and administrative expense or GM Financial operating and other expenses.
	Special Tools
	Special tools represent product-specific powertrain and non-powertrain related tools, dies, molds and other items used in the vehicle manufacturing process. Expenditures for special tools are recorded at cost and are capitalized. We amortize all non-powertrain special tools over their estimated useful lives using an accelerated amortization method. We amortize powertrain special tools over their estimated useful lives using the straight-line method. Impairment charges related to special tools are recorded in Automotive cost of sales.
	Goodwill
	Goodwill arises from the application of fresh-start reporting and acquisitions accounted for as business combinations. Goodwill is tested for impairment for all reporting units on an annual basis during the fourth quarter, or more frequently if events occur or circumstances change that would warrant such a review. When the fair value of a reporting unit falls below its carrying amount an impairment charge is recorded for the amount, if any, by which the carrying amount of goodwill exceeds its implied fair value. Fair values of reporting units are established using a discounted cash flow method. Where available and as appropriate, comparative market multiples and the quoted market price for our common stock are used to corroborate the results of the discounted cash flow method. Our reporting units are GMNA and GME and various reporting units within the GMIO, GMSA and GM Financial segments. Due to the integrated nature of our manufacturing operations and the sharing of assets, other resources and vehicle platforms among brands within GMNA and GME and because financial information by brand or country is not discrete below the operating segment level, GMNA and GME do not contain reporting units below the operating segment level. GMIO, GMSA and GM Financial are less integrated given the lack of regional trade pacts and other unique geographical differences and thus contain separate reporting units below the operating segment level. Goodwill would be reassigned on a relative-fair-value basis to a portion of a reporting unit to be disposed of or upon the reorganization of the composition of one or more of our reporting units, unless the reporting unit was never integrated.
	Intangible Assets, net
	Intangible assets, excluding Goodwill, primarily include brand names (including defensive intangibles associated with discontinued brands), technology and intellectual property, customer relationships and dealer networks.
	Intangible assets are amortized on a straight-line or an accelerated method of amortization over their estimated useful lives. An accelerated amortization method reflecting the pattern in which the asset will be consumed is utilized if that pattern can be reliably determined. We consider the period of expected cash flows and underlying data used to measure the fair value of the intangible assets when selecting a useful life. Impairment charges related to intangible assets are recorded in Automotive selling, general and administrative expense or Automotive cost of sales.
	Amortization of developed technology and intellectual property is recorded in Automotive cost of sales. Amortization of brand names, customer relationships and our dealer networks is recorded in Automotive selling, general and administrative expense or GM Financial operating and other expenses.
Valuation of Long-Lived Assets
The carrying amount of long-lived assets and finite-lived intangible assets to be held and used in the business are evaluated for impairment when events and circumstances warrant. If the carrying amount of a long-lived asset group is considered impaired, a loss is recorded based on the amount by which the carrying amount exceeds fair value. Product-specific long-lived asset groups are tested for impairment at the platform or vehicle line level and consider their geographical location. Non-product specific long-lived assets are tested for impairment on a reporting unit basis in GMNA and GME and tested at or within our various reporting units within our GMIO, GMSA and GM Financial segments. Fair value is determined using either the market or sales comparison approach, cost approach or anticipated cash flows discounted at a rate commensurate with the risk involved. Long-lived assets to be disposed of other than by sale are considered held for use until disposition. Product-specific assets may become impaired as a result of declines in profitability due to changes in volume, pricing or costs.
Pension and Other Postretirement Plans
Attribution, Methods and Assumptions
The cost of benefits provided by defined benefit pension plans is recorded in the period employees provide service. The cost of pension plan amendments that provide for benefits already earned by plan participants is amortized over the expected period of benefit which may be: (1) the duration of the applicable collective bargaining agreement specific to the plan; (2) expected future working lifetime; or (3) the life expectancy of the plan participants.
The cost of medical, dental, legal service and life insurance benefits provided through postretirement benefit plans is recorded in the period employees provide service. The cost of postretirement plan amendments that provide for benefits already earned by plan participants is amortized over the expected period of benefit which may be the average period to full eligibility or the average life expectancy of the plan participants, or the period to the plan's termination date for a plan which provides legal services.
An expected return on plan asset methodology is utilized to calculate future pension expense for certain significant funded benefit plans. A market-related value of plan assets methodology is also utilized that averages gains and losses on the plan assets over a period of years to determine future pension expense. The methodology recognizes 60% of the difference between the fair value of assets and the expected calculated value in the first year and 10% of that difference over each of the next four years.
The discount rate assumption is established for each of the retirement-related benefit plans at their respective measurement dates. In the U.S. we use a cash flow matching approach that uses projected cash flows matched to spot rates along a high quality corporate yield curve to determine the present value of cash flows to calculate a single equivalent discount rate.
The benefit obligation for pension plans in Canada, the United Kingdom and Germany represents 92% of the non-U.S. pension benefit obligation at December 31, 2013. The discount rates for plans in Canada, the United Kingdom and Germany are determined using a cash flow matching approach, similar to the U.S. approach.
In countries other than the U.S., Canada, the United Kingdom and those located in the Eurozone discount rates are established depending on the local financial markets, using a high quality yield curve based on local bonds, a yield curve adjusted to reflect local conditions or local actuarial standards.
Plan Asset Valuation
Cash Equivalents and Other Short-Term Investments
Money market funds and other similar short-term investment funds are valued using the net asset value per share (NAV). Prices for short-term debt securities are received from independent pricing services or from dealers who make markets in such securities. Independent pricing services utilize matrix pricing which considers readily available inputs such as the yield or price of bonds of comparable quality, coupon, maturity and type as well as dealer supplied prices. Money market mutual funds which provide investors with the ability to redeem their interests on a daily basis and for which NAVs are publicly available are classified in Level 1. Other cash equivalents and short-term investments are classified in Level 2.
Common and Preferred Stock
Common and preferred stock for which market prices are readily available at the measurement date are valued at the last reported sale price or official closing price on the primary market or exchange on which they are actively traded and are classified in Level 1. Such equity securities for which the market is not considered to be active are valued via the use of observable inputs, which may include, among others, the use of adjusted market prices last available, bids or last available sales prices and/or other observable inputs and are classified in Level 2. Common and preferred stock classified in Level 3 are those privately issued securities or other issues that are valued via the use of valuation models using significant unobservable inputs that generally consider among others, aged (stale) pricing, earnings multiples, discounted cash flows and/or other qualitative and quantitative factors.
Fixed Income Securities
Fixed income securities are valued based on quotations received from independent pricing services or from dealers who make markets in such securities. Debt securities which are priced via the use of pricing services that utilize matrix pricing which considers readily observable inputs such as the yield or price of bonds of comparable quality, coupon, maturity and type as well as dealer supplied prices, are classified in Level 2. Fixed income securities within this category that are typically priced by dealers and pricing services via the use of proprietary pricing models which incorporate significant unobservable inputs are classified in Level 3. These inputs primarily consist of yield and credit spread assumptions, discount rates, prepayment curves, default assumptions and recovery rates.
Investment Funds, Private Equity and Debt Investments and Real Estate Investments
Investments in exchange traded funds, real estate investment trusts and mutual funds, for which market quotations are generally readily available, are valued at the last reported sale price, official closing price or publicly available NAV (or its equivalent) on the primary market or exchange on which they are traded and are classified in Level 1. Investments in private investment funds (including hedge funds, private equity funds and real estate funds) are generally valued based on their respective NAV (or its equivalent), as a practical expedient to estimate fair value due to the absence of readily available market prices. Investments in private investment funds, which may be fully redeemed at NAV in the near-term are generally classified in Level 2. Investments in funds, which may not be fully redeemed at NAV in the near-term, are generally classified in Level 3.
Direct investments in private equity, private debt and real estate securities, are generally valued in good faith via the use of the market approach (earnings multiples from comparable companies) or the income approach (discounted cash flow techniques), and consider inputs such as revenue growth and gross margin assumptions, discount rates, discounts for lack of liquidity, market capitalization rates, and the selection of comparable companies. As these valuations incorporate significant unobservable inputs they are classified in Level 3.
Fair value estimates for private investment funds, private equity, private debt and real estate investments are provided by the respective investment sponsors or investment advisers and are subsequently reviewed and approved by management. In the event management concludes a reported NAV or fair value estimate (collectively, external valuation) does not reflect fair value or is not determined as of the financial reporting measurement date, we will consider whether and when deemed necessary to make an adjustment at the balance sheet date. In determining whether an adjustment to the external valuation is required, we will review material factors that could affect the valuation, such as changes to the composition or performance of the underlying investments or comparable investments, overall market conditions, expected sale prices for private investments which are probable of being sold in the short term and other economic factors that may possibly have a favorable or unfavorable effect on the reported external valuation.
Derivatives
Exchange traded derivatives, such as options and futures, for which market quotations are readily available, are valued at the last reported sale price or official closing price on the primary market or exchange on which they are traded and are classified in Level 1. Over-the-counter derivatives, including but not limited to swaps, swaptions and forwards, which are typically valued through independent pricing services with observable inputs are generally classified in Level 2. Swaps that are cleared by clearinghouses or exchanges are valued with the prices provided by those venues and are generally classified in Level 2. Derivatives classified in Level 3 are typically valued via the use of pricing models which incorporate significant unobservable inputs, but may also include derivatives which are valued with the use of significant observable inputs which are not subject to corroboration. The inputs part of the model based valuations may include extrapolated or model-derived assumptions such as volatilities, yield and credit spread assumptions.
Due to the lack of timely available market information for certain investments in the asset classes described above as well as the inherent uncertainty of valuation, reported fair values may differ from fair values that would have been used had timely available market information been available.
Job Security Programs and Extended Disability Benefits
We have job security programs to provide International Union, United Automobile, Aerospace and Agriculture Implement Workers of America (UAW) and Canadian Auto Workers Union (CAW) employees reduced wages and continued coverage under certain employee benefit programs depending on the employee's classification as well as the number of years of service that the employee has accrued. We also provide extended disability benefits for employees currently disabled and those in the active workforce who may become disabled in the form of income replacement, healthcare costs and life insurance premiums.
We recognize a liability for job security programs and extended disability benefits over the expected service period using measurement provisions similar to those used to measure our other postretirement benefits (OPEB) obligations based on our best estimate of the probable liability at the measurement date. We record actuarial gains and losses immediately in earnings.
Stock Incentive Plans
We measure and record compensation expense for all share-based payment awards based on the award's estimated fair value which is the fair value of our common stock on the date of grant, or for restricted stock units (RSUs) granted prior to our public offering, the fair value of our common stock as of the date of the public offering. We record compensation cost for the awards on a straight-line basis over the entire vesting period, or for retirement eligible employees over the requisite service period. Salary stock awards granted are fully vested and nonforfeitable upon grant; therefore, compensation cost is recorded on the date of grant. The liability for stock incentive plan awards settled in cash is remeasured to fair value at the end of each reporting period.
Policy, Product Warranty and Recall Campaigns
The estimated costs related to policy and product warranties are accrued at the time products are sold and are charged to Automotive cost of sales. These estimates are established using historical information on the nature, frequency and average cost of claims of each vehicle line or each model year of the vehicle line and assumptions about future activity and events. Revisions are made when necessary based on changes in these factors. Trends of claims are actively studied and actions are taken to improve vehicle quality and minimize claims. The estimated costs related to product recalls based on a formal campaign soliciting return of that product are accrued when they are deemed to be probable and can be reasonably estimated.
Income Taxes
The liability method is used in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements using the statutory tax rates in effect for the year in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recorded in the results of operations in the period that includes the enactment date under the law.
Deferred income tax assets are evaluated quarterly to determine if valuation allowances are required or should be adjusted. We establish valuation allowances for deferred tax assets based on a more likely than not standard. The ability to realize deferred tax assets depends on the ability to generate sufficient taxable income within the carryback or carryforward periods provided for in the tax law for each applicable tax jurisdiction. The assessment regarding whether a valuation allowance is required or should be adjusted also considers all available positive and negative evidence factors.
It is difficult to conclude a valuation allowance is not required when there is significant objective and verifiable negative evidence, such as cumulative losses in recent years. We utilize a rolling three years of actual and current year results as the primary measure of cumulative losses in recent years.
Income tax expense (benefit) for the year is allocated between continuing operations and other categories of income such as Other comprehensive income (loss). In periods in which there is a pre-tax loss from continuing operations and pre-tax income in another income category, the tax benefit allocated to continuing operations is determined by taking into account the pre-tax income of other categories.
We record uncertain tax positions on the basis of a two-step process whereby: (1) we determine whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position; and (2) for those tax positions that meet the more likely than not recognition, we recognize the largest amount of tax benefit that is greater than 50% likely to be realized upon ultimate settlement with the related tax authority. We record interest and penalties on uncertain tax positions in Income tax expense (benefit).
Foreign Currency Transactions and Translation
The assets and liabilities of foreign subsidiaries that use the local currency as their functional currency are translated to U.S. Dollars based on the current exchange rate prevailing at each balance sheet date and any resulting translation adjustments are included in Accumulated other comprehensive loss. The assets and liabilities of foreign subsidiaries whose local currency is not their functional currency are remeasured from their local currency to their functional currency and then translated to U.S. Dollars. Revenues and expenses are translated into U.S. Dollars using the average exchange rates prevailing for each period presented.
Gains and losses arising from foreign currency transactions and the effects of remeasurements discussed in the preceding paragraph are recorded in Automotive cost of sales and GM Financial operating and other expenses unless related to Automotive debt, which are recorded in Interest income and other non-operating income, net. Foreign currency transaction and remeasurement losses were $350 million, $117 million and $55 million in the years ended December 31, 2013, 2012 and 2011.
Recently Adopted Accounting Principles
On January 1, 2013 we adopted Accounting Standards Update (ASU) 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income." This ASU does not change current requirements for reporting net income or other comprehensive income (OCI) in financial statements; rather, it requires certain disclosures of the amount of reclassifications of items from OCI to net income by component. The related disclosures are presented in Note 21.
Accounting Standards Not Yet Adopted
In July 2013 the FASB issued ASU 2013-11, “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists” to eliminate diversity in practice. This ASU requires that companies net their unrecognized tax benefits against all same-jurisdiction net operating losses or tax credit carryforwards that would be used to settle the position with a tax authority. This new guidance is effective prospectively for annual reporting periods beginning on or after December 15, 2013 and interim periods therein. The adoption of this ASU will not have a material effect on our consolidated financial statements because it aligns with our current presentation.

Acquisition_of_Businesses

Acquisition of Businesses	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Acquisition of Businesses	'
	Acquisition of Businesses
	Acquisition of Certain Ally Financial International Operations
	In November 2012 GM Financial entered into a definitive agreement with Ally Financial to acquire 100% of the outstanding equity interests in the top level holding companies of its automotive finance and financial services operations in Europe and Latin America and a separate agreement to acquire Ally Financial’s non-controlling equity interest in GMAC-SAIC Automotive Finance Company Limited (GMAC-SAIC), which conducts automotive finance and other financial services in China.
	On April 1, 2013 GM Financial completed the acquisition of Ally Financial's European and Latin American automotive finance operations except for France, Portugal and Brazil; on June 1, 2013 it completed the acquisition of Ally Financial's automotive finance operations in France and Portugal; and on October 1, 2013 it completed the acquisition of Ally Financial's automotive finance operations in Brazil. The aggregate consideration for these acquisitions was $3.3 billion, subject to certain closing adjustments. Acquisition-related costs were insignificant. In addition GM Financial repaid loans of $1.4 billion that were assumed as part of the acquisitions. GM Financial recorded the fair value of the assets acquired and liabilities assumed on the acquisition dates. Certain amounts previously presented related to the acquisitions have been, and will continue to be, updated as a result of closing adjustments.
	GM Financial's acquisition of Ally Financial's equity interest in GMAC-SAIC is subject to certain regulatory and other approvals and is expected to close in 2014. GM Financial expects to pay approximately $900 million to close this acquisition subject to certain closing adjustments.
	The following table summarizes the aggregate consideration and the assets acquired and liabilities assumed at the acquisition dates before eliminations for net intercompany receivables of approximately $300 million (dollars in millions):
	Cash	$	607
	Restricted cash	906
	Finance receivables	15,144
	Other assets, including identifiable intangible assets	769
	Secured and unsecured debt	(12,833		)
	Other liabilities	(1,483		)
	Identifiable net assets acquired	3,110
	Goodwill resulting from the acquisitions	144
	Aggregate consideration	$	3,254
	The fair value of finance receivables was determined using a discounted cash flow approach. The contractual cash flows were adjusted for estimated prepayments, defaults, recoveries and servicing costs and discounted using a discount rate commensurate with risks and maturity inherent in the finance contracts. The contractually required payments receivable, cash flows expected to be collected and fair value for finance receivables acquired with deteriorated credit quality at the acquisition date were $799 million, $728 million and $601 million. The contractually required payments receivable, cash flows not expected to be collected and fair value for other acquired finance receivables were $15.6 billion, $303 million and $14.5 billion. The fair value of secured and unsecured debt was determined using quoted market prices when available and a discounted cash flow approach when not available.
	We recorded goodwill in the amount of $144 million for the excess of the aggregate consideration over the fair value of the individual assets acquired and liabilities assumed and such amount is primarily attributed to the value of the incremental GM Financial business expected. The recorded goodwill is subject to further adjustment resulting from the finalization of closing balance sheet audits. Valuations and assumptions pertaining to income taxes are subject to change as additional information is obtained during the measurement period. All of the goodwill was assigned to the GM Financial segment and will be assigned to reporting units, which will be determined pending completion of the remaining acquisitions. The goodwill is not tax deductible.
	The results of the acquired European and Latin American automotive finance operations are included in GM Financial's results beginning on the dates GM Financial completed each acquisition. The following table summarizes the actual amounts of revenue and earnings included in our consolidated financial statements as well as certain pro forma revenue and earnings of the combined entity had these acquisitions occurred as of January 1, 2012, without consideration of historical transactions between the acquired operations and us, as it is impracticable to obtain such information (dollars in millions):
		Acquired Operations' Amounts Included in Results For Year Ended December 31, 2013			Pro Forma-Combined for Years Ended
					31-Dec-13		31-Dec-12
	Total net sales and revenue	$	968		$	156,284	$	154,161
	Net income attributable to stockholders	$	109		$	5,492	$	6,412
	Acquisition of SAIC GM Investment Limited
	In September 2012 we obtained control of SAIC GM Investment Limited, the holding company of General Motors India Private Limited and Chevrolet Sales India Private Limited (collectively GM India) with an 86% interest and consolidated GM India and recorded goodwill of $61 million. We also recognized a gain of $51 million which was recorded in Equity income and gain on investments. In addition we invested $125 million in GM India, which increased our interest in GM India to 90.8%. Refer to Note 8 for additional details on our investment in GM India prior to acquisition.

GM_Financial_Receivables_net

GM Financial Receivables, net (GM Financial [Member])	12 Months Ended
	Dec. 31, 2013
GM Financial [Member]	'
Financial Receivables [Line Items]	'
GM Financial Receivables, net [Text Block]	'
	GM Financial Receivables, net
	In the year ended December 31, 2013 GM Financial acquired certain international operations in Europe and Latin America from Ally Financial that conduct consumer and commercial lending activities. All of the loans acquired were made on a secured basis.
	The following table summarizes the components of consumer and commercial finance receivables, net (dollars in millions):
		December 31, 2013											December 31, 2012
		Consumer			Commercial				Total				Consumer			Commercial			Total
	Pre-acquisition finance receivables, outstanding amount	$	1,294		$	—			$	1,294			$	2,162		$	—		$	2,162
	Pre-acquisition finance receivables, carrying amount	$	1,174		$	—			$	1,174			$	1,958		$	—		$	1,958
	Post-acquisition finance receivables, net of fees	21,956			6,050				28,006				8,831			560			9,391
	Finance receivables	23,130			6,050				29,180				10,789			560			11,349
	Less: allowance for loan losses	(497		)	(51		)		(548		)		(345		)	(6		)	(351		)
	GM Financial receivables, net	$	22,633		$	5,999			$	28,632			$	10,444		$	554		$	10,998
	Fair value of GM Financial receivables, net								$	28,668									$	11,313
	Of the total allowance for loan losses in the above table, $427 million and $266 million were current at December 31, 2013 and 2012.
	GM Financial determined the fair value of consumer finance receivables using observable and unobservable inputs within a cash flow model. The inputs reflect assumptions regarding expected prepayments, deferrals, delinquencies, recoveries and charge-offs of the loans within the portfolio. The cash flow model produces an estimated amortization schedule of the finance receivables which is the basis for the calculation of the series of cash flows that derive the fair value of the portfolio. The series of cash flows is calculated and discounted using a weighted-average cost of capital (WACC) using unobservable debt and equity percentages, an unobservable cost of equity and an observable cost of debt based on companies with a similar credit rating and maturity profile as the portfolio. Macroeconomic factors could negatively affect the credit performance of the portfolio and therefore could potentially affect the assumptions used in GM Financial's cash flow model. Substantially all commercial finance receivables either have variable interest rates and maturities of one year or less, or were acquired or originated within the past year. Therefore, the carrying amount is considered to be a reasonable estimate of fair value.
	GM Financial reviews its pre-acquisition finance receivables portfolios for differences between contractual cash flows and the cash flows expected to be collected to determine if the difference is attributable, at least in part, to credit quality. In the years ended December 31, 2013 and 2012 as a result of improvements in credit performance of the pre-acquisition finance receivables, GM Financial transferred the amount of excess cash flows from the non-accretable difference to accretable yield. GM Financial will recognize this excess as finance charge income over the remaining life of the portfolio.
	The following table summarizes the activity for accretable yield (dollars in millions):
		Years Ended December 31,
		2013			2012
	Balance at beginning of period	$	404		$	737
	Ally Financial international operations acquisition	127
	Accretion of accretable yield	(342		)	(503		)
	Transfer from non-accretable difference	74			170
	Effect of foreign currency	(8		)	—
	Balance at end of period	$	255		$	404
	The following table summarizes activity for the allowance for loan losses on consumer and commercial finance receivables (dollars in millions):
		Years Ended December 31,(a)
		2013			2012				2011
	Balance at beginning of period	$	351		$	179			$	26
	Provision for loan losses	475			304				178
	Charge-offs	(643		)	(304		)		(66		)
	Recoveries	362			172				41
	Effect of foreign currency	3			—				—
	Balance at end of period	$	548		$	351			$	179
	________
	(a)	The balances and activity of the allowance for commercial loan losses included in the amounts at and for the years ended December 31, 2013 and 2012 were insignificant.
	Credit Quality
	Consumer Finance Receivables
	GM Financial uses proprietary scoring systems that measure the credit quality of the receivables using several factors, such as credit bureau information, consumer credit risk scores (e.g. FICO score) and contract characteristics. In addition to GM Financial's proprietary scoring systems GM Financial considers other individual consumer factors such as employment history, financial stability and capacity to pay. Subsequent to origination GM Financial reviews the credit quality of retail receivables based on customer payment activity. At the time of loan origination substantially all of GM Financial's international consumers have prime credit scores. In North America sub-prime is typically defined as a loan with a borrower that has a FICO score of less than 620. At December 31, 2013 and 2012 88% and 84% of the consumer finance receivables in North America were consumers with FICO scores less than 620.
	An account is considered delinquent if a substantial portion of a scheduled payment has not been received by the date such payment was contractually due. At December 31, 2013 and 2012 the accrual of finance charge income has been suspended on delinquent consumer finance receivables based on contractual amounts due of $642 million and $503 million.
	GM Financial purchases consumer finance contracts from automobile dealers without recourse and, accordingly, the dealer has no liability to GM Financial if the consumer defaults on the contract. Finance receivables are collateralized by vehicle titles and GM Financial has the right to repossess the vehicle in the event the consumer defaults on the payment terms of the contract.
	The following table summarizes the contractual amount of delinquent contracts, which is not materially different from the recorded investment of the consumer finance receivables (dollars in millions):
		December 31, 2013						December 31, 2012
		Amount			Percent of Contractual Amount Due			Amount				Percent of Contractual Amount Due
	Delinquent contracts
	31-to-60 days	$	952		4.1	%		$	672			6.1	%
	Greater-than-60 days	408			1.7	%		230				2.1	%
	Total finance receivables more than 30 days delinquent	1,360			5.8	%		902				8.2	%
	In repossession	41			0.2	%		31				0.3	%
	Total finance receivables more than 30 days delinquent or in repossession	$	1,401		6	%		$	933			8.5	%
	Impaired Finance Receivables - Troubled Debt Restructurings
	The following table summarizes the outstanding recorded investment for consumer finance receivables that are considered to be TDRs and the related allowance (dollars in millions):
		December 31, 2013			December 31, 2012
	Outstanding recorded investment	$	767		$	228
	Less: allowance for loan losses	(103		)	(32		)
	Outstanding recorded investment, net of allowance	$	664		$	196
	Unpaid principal balance	$	779		$	232
	Commercial Finance Receivables
	GM Financial's commercial finance receivables consist of dealer financings. A proprietary model is used to assign a risk rating to each dealer. A credit review of each dealer is performed at least annually and, if necessary, the dealer's risk rating is adjusted on the basis of the review. At December 31, 2013 and 2012 the commercial finance receivables or loans on non-accrual status were insignificant.
	The following table summarizes the credit risk profile by dealer grouping of the commercial finance receivables (dollars in millions):
		December 31, 2013			December 31, 2012
	Group I - Dealers with strong to superior financial metrics	$	549		$	99
	Group II - Dealers with fair to favorable financial metrics	1,460			278
	Group III - Dealers with marginal to weak financial metrics	1,982			171
Group IV - Dealers with poor financial metrics	1,462			12
Group V - Dealers warranting special mention due to potential weaknesses	385
Group VI - Dealers with loans classified as substandard, doubtful or impaired	212
	$	6,050		$	560
The credit lines for Group VI dealers are suspended and no further funding is extended to these dealers.

Marketable_Securities

Marketable Securities	12 Months Ended
	Dec. 31, 2013
Marketable Securities [Abstract]	'
Marketable Securities [Text Block]	'
	Marketable Securities
	The following table summarizes information regarding marketable securities (dollars in millions):
				December 31, 2013						December 31, 2012
		Fair Value Level		Cost				Fair Value		Cost		Fair Value
	Cash and cash equivalents
	Available-for-sale securities
	U.S. government and agencies	2		$	1,437			$	1,437	$	4,190	$	4,190
	Sovereign debt	2		515				515		—		—
	Money market funds	1		1,262				1,262		1,799		1,799
	Corporate debt	2		7,598				7,598		3,222		3,222
	Total available-for-sale securities			$	10,812			10,812		$	9,211	9,211
	Trading securities
	Sovereign debt	2						—				1,408
	Corporate debt	2						25				—
	Total trading securities							25				1,408
	Total marketable securities classified as cash equivalents							10,837				10,619
	Cash, cash equivalents and time deposits							9,184				7,803
	Total cash and cash equivalents							$	20,021			$	18,422
	Marketable securities - current
	Available-for-sale securities
	U.S. government and agencies	2		$	5,343			$	5,344	$	1,231	$	1,231
	Corporate debt	2		1,867				1,869		2,465		2,505
	Equity and sovereign debt	1 & 2		22				22		30		51
	Total available-for-sale securities			$	7,232			7,235		$	3,726	3,787
	Trading securities - Sovereign debt	2						1,737				5,201
	Total marketable securities - current							8,972				8,988
	Marketable securities - non-current
	Available-for-sale securities - Investment in Peugeot S.A.	1		$	—			—		$	179	179
	Total marketable securities							$	8,972			$	9,167
	Restricted cash and marketable securities
	Available-for-sale securities
	Money market funds	1		$	897			$	897	$	933	$	933
	Other	2		34				35		198		199
	Total marketable securities classified as restricted cash and marketable securities			$	931			932		$	1,131	1,132
	Restricted cash and cash equivalents and time deposits							1,144				236
	Total restricted cash and marketable securities							$	2,076			$	1,368
	We are required to post cash and marketable securities as collateral as part of certain agreements that we enter into as part of our operations. Cash and marketable securities subject to contractual restrictions and not readily available are classified as Restricted cash and marketable securities. Restricted cash and marketable securities are invested in accordance with the terms of the underlying agreements and include amounts related to various deposits, escrows and other cash collateral.
	Sales proceeds from investments classified as available-for-sale and sold prior to maturity were $4.7 billion, $4.7 billion and $1.6 billion in the years ended December 31, 2013, 2012 and 2011.
	The following table summarizes the amortized cost and the fair value of investments classified as available-for-sale by contractual maturity at December 31, 2013 (dollars in millions):
		Amortized Cost				Fair Value
	Due in one year or less	$	14,879			$	14,881
	Due after one year through five years	1,937				1,939
	Total contractual maturities of available-for-sale securities	$	16,816			$	16,820
	Cumulative unrealized gains and losses on available-for-sale securities and net unrealized gains (losses) on trading securities were insignificant at and in the years ended December 31, 2013, 2012 and 2011.
	Peugeot S.A.
	In December 2013 we sold our seven percent investment in Peugeot S. A. (PSA) common stock for $339 million, net of disposal costs and we recorded a net gain of $152 million in Interest income and other non-operating income, net.
	At December 31, 2012 we measured the fair value of our investment in PSA common stock using the published stock price and determined the carrying amount of our investment in PSA common stock exceeded its fair value. PSA’s stock price had shown no sustained signs of recovery towards the price at which we acquired it in March 2012. Based upon the 55% decline in PSA common stock price since our acquisition and the nine month duration of the impairment, combined with our fourth quarter reassessment of our European automotive operations, we concluded that the impairment of our investment in PSA common stock was other-than-temporary. As a result we transferred the total unrealized losses from Accumulated other comprehensive loss to Interest income and other non-operating income, net resulting in an impairment charge of $220 million.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventories [Text Block]	'
	Inventories
	The following table summarizes the components of Inventories (dollars in millions):
		December 31, 2013		December 31, 2012
	Productive material, supplies and work in process	$	5,872	$	6,560
	Finished product, including service parts	8,167		8,154
	Total inventories	$	14,039	$	14,714

Equipment_on_Operating_Leases_

Equipment on Operating Leases, net (Vehicles [Member])	12 Months Ended
	Dec. 31, 2013
Vehicles [Member]	'
Property Subject to or Available for Operating Lease [Line Items]	'
Equipment on Operating Leases, net [Text Block]	'
	Equipment on Operating Leases, net
	Automotive
	Equipment on operating leases, net is composed of vehicle sales to daily rental car companies. The following table summarizes information related to Equipment on operating leases, net (dollars in millions):
		December 31, 2013			December 31, 2012
	Equipment on operating leases	$	2,605		$	1,946
	Less: accumulated depreciation	(207		)	(164		)
	Equipment on operating leases, net	$	2,398		$	1,782
	The following table summarizes depreciation expense and impairment charges related to Equipment on operating leases, net (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Depreciation expense	$	218		$	227		$	431
	Impairment charges	$	168		$	181		$	151
	Automotive Financing - GM Financial
	GM Financial originates leases in the U.S. and Canada that are recorded as operating leases. A Canadian subsidiary of GM Financial originates and sells leases to a third-party with servicing retained. The following table summarizes GM Financial equipment on operating leases, net (dollars in millions):
		December 31, 2013			December 31, 2012
	GM Financial equipment on operating leases	$	4,025		$	1,910
	Less: accumulated depreciation	(642		)	(261		)
	GM Financial equipment on operating leases, net	$	3,383		$	1,649
	Depreciation expense related to GM Financial equipment on operating leases, net was $450 million, $205 million and $70 million in the years ended December 31, 2013, 2012 and 2011.
	The following table summarizes minimum rental payments due to GM Financial as lessor under operating leases (dollars in millions):
		2014			2015			2016		2017		2018
	Minimum rental receipts under operating leases	$	628		$	512		$	266	$	43	$	4

Equity_In_Net_Assets_Of_Noncon

Equity In Net Assets Of Nonconsolidated Affiliates	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Equity in Net Assets of Nonconsolidated Affiliates [Text Block]	'
	Equity in Net Assets of Nonconsolidated Affiliates
	Nonconsolidated affiliates are entities in which an equity ownership interest is maintained and for which the equity method of accounting is used, due to the ability to exert significant influence over decisions relating to their operating and financial affairs.
	The following table summarizes information regarding Equity income and gain on investments (dollars in millions):
		Years Ended December 31,
		2013				2012			2011
	China joint ventures (China JVs)	$	1,763			$	1,521		$	1,511
	New Delphi (including gain on disposition)	—				—			1,727
	Others (including gain on acquisition of GM India)	47				41			(46		)
	Total equity income and gain on investments	$	1,810			$	1,562		$	3,192
	Sales and income of our joint ventures are not consolidated into our financial statements; rather, our proportionate share of the earnings of each joint venture is reflected as Equity income and gain on investments.
	We received dividends from nonconsolidated affiliates of $1.7 billion, $1.4 billion and $1.2 billion in the years ended December 31, 2013, 2012 and 2011. At December 31, 2013 and 2012 we had undistributed earnings including dividends declared but not received, of $1.8 billion and $1.7 billion related to our nonconsolidated affiliates.
	Investment in China JVs
	The following table summarizes our direct ownership interests in China JVs:
		December 31, 2013			December 31, 2012
	Shanghai General Motors Co., Ltd. (SGM)	50	%		50	%
	Shanghai GM Norsom Motor Co., Ltd. (SGM Norsom)	25	%		25	%
	Shanghai GM Dong Yue Motors Co., Ltd. (SGM DY)	25	%		25	%
	Shanghai GM Dong Yue Powertrain (SGM DYPT)	25	%		25	%
	SAIC-GM-Wuling Automobile Co., Ltd.	44	%		44	%
	FAW-GM Light Duty Commercial Vehicle Co., Ltd.	50	%		50	%
	Pan Asia Technical Automotive Center Co., Ltd.	50	%		50	%
	Shanghai OnStar Telematics Co., Ltd. (Shanghai OnStar)	40	%		40	%
	Shanghai Chengxin Used Car Operation and Management Co., Ltd. (Shanghai Chengxin Used Car)	33	%		33	%
	SAIC General Motors Sales Co., Ltd. (SGMS)	49	%		49	%
	SGM is a joint venture established by Shanghai Automotive Industry Corporation (SAIC) (50%) and us (50%). SGM has interests in three other joint ventures in China: SGM Norsom, SGM DY and SGM DYPT. These three joint ventures are jointly held by SGM (50%), SAIC (25%) and us (25%). These four joint ventures are engaged in the production, import, and sale of a comprehensive range of products under the Buick, Chevrolet and Cadillac brands. SGM also has interests in Shanghai OnStar (20%) and Shanghai Chengxin Used Car (33%). SGM also has a 20% equity interest in GMAC-SAIC, a joint venture established by General Motors Acceptance Corporation (now Ally Financial) (40%) and SAIC Finance Co., Ltd. (40%).
	SGMS is a joint venture established in November 2011 by SAIC (51%) and us (49%) to engage in the sales of the imported Buick, Chevrolet and Cadillac brands and the sales of automobiles manufactured by SGM.
	In September 2012 we repurchased a 1% interest in SGM for a total consideration of $119 million, increasing our ownership interest in SGM to 50%. The transaction was accounted for by applying the equity method of accounting. The consideration exceeded our proportionate share of the 1% interest in SGM net assets by $82 million, which consists of plant, property and equipment, intangible assets and goodwill of $8 million, $36 million and $38 million.
	Sale of New Delphi
	In March 2011 we sold our Class A Membership Interests in Delphi Automotive LLP (New Delphi) to New Delphi for $3.8 billion. The Class A Membership Interests sold represented 100% of our direct and indirect interests in New Delphi and 100% of New Delphi's Class A Membership Interests issued and outstanding. The sale terminated any direct and indirect obligation to loan New Delphi up to $500 million under a term loan facility established in October 2009 when New Delphi was created and the Class A Membership Interests were issued. New Delphi had not borrowed under this loan facility. In March 2011 we recorded a gain of $1.6 billion related to the sale in Equity income and gain on investments. Our existing supply contracts with New Delphi were not affected by this transaction.
	Investment in GM India
	In March 2011 the fair value of our investment in GM India was determined to be less than its carrying amount. The loss in value was determined to be other-than-temporary; therefore, we recorded an impairment charge of $39 million in the three months ended March 31, 2011. In addition we recorded other charges totaling $67 million related to our investment in GM India. Refer to Note 3 for detail regarding the acquisition of GM India.
	Investment in and Summarized Financial Data of Nonconsolidated Affiliates
	The following table summarizes the carrying amount of investments in nonconsolidated affiliates (dollars in millions):
		December 31, 2013				December 31, 2012
	China JVs	$	7,851			$	6,579
	Other investments	243				304
	Total equity in net assets of nonconsolidated affiliates	$	8,094			$	6,883
	At December 31, 2013 and 2012 the carrying amount of our investments in certain joint ventures exceeded our share of the underlying net assets by $3.8 billion. These differences are primarily related to the application of fresh-start reporting and purchase of additional interests in nonconsolidated affiliates, of which $3.4 billion at December 31, 2013 and 2012 were allocated to goodwill and the remainder was allocated to the underlying assets and liabilities, primarily intangibles, and are being amortized over their useful lives.
	The following tables present summarized financial data for all of our nonconsolidated affiliates (dollars in millions):
		31-Dec-13										31-Dec-12
		China JVs				Others			Total			China JVs		Others		Total
	Summarized Balance Sheet Data
	Current assets	$	14,666			$	2,234		$	16,900		$	11,759	$	2,642	$	14,401
	Non-current assets	8,187				1,458			9,645			6,766		1,507		8,273
	Total assets	$	22,853			$	3,692		$	26,545		$	18,525	$	4,149	$	22,674
	Current liabilities	$	14,019			$	1,859		$	15,878		$	12,612	$	1,893	$	14,505
	Non-current liabilities	1,065				511			1,576			756		758		1,514
	Total liabilities	$	15,084			$	2,370		$	17,454		$	13,368	$	2,651	$	16,019
	Non-controlling interests	$	1,040			$	—		$	1,040		$	1,055	$	1	$	1,056
		Years Ended December 31,
		2013				2012			2011
	Summarized Operating Data
	China JV's net sales	$	38,767			$	33,364		$	30,511
	Others' net sales	1,830				3,963			4,242
	Total net sales	$	40,597			$	37,327		$	34,753
	China JV's net income	$	3,685			$	3,198		$	3,203
	Others' net income (loss)	50				(23		)	(13		)
	Total net income	$	3,735			$	3,175		$	3,190
	Transactions with Nonconsolidated Affiliates
	Nonconsolidated affiliates are involved in various aspects of the development, production and marketing of cars, trucks and automobile parts. We purchase component parts and vehicles from certain nonconsolidated affiliates for resale to dealers. We also sell component parts and vehicles to certain nonconsolidated affiliates. The following tables summarize the effects of transactions with nonconsolidated affiliates (dollars in millions):
		Years Ended December 31,
		2013				2012			2011
	Results of Operations
Automotive sales and revenue	$	2,724			$	2,572		$	3,266
Automotive purchases, net	$	724			$	497		$	1,044
Interest income and other non-operating income, net	$	19			$	184		$	34
	December 31, 2013				December 31, 2012
Financial Position
Accounts and notes receivable, net	$	756			$	1,668
Accounts payable	$	183			$	167
Deferred revenue and customer deposits	$	32			$	46
	Years Ended December 31,
	2013				2012			2011
Cash Flows
Operating	$	3,607			$	3,385		$	3,624
Investing	$	(13	)		$	(41	)	$	(27	)

Property_net

Property, net	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment, Net [Abstract]	'
Property, net [Text Block]	'
	Property, net
	The following table summarizes the components of Property, net (dollars in millions):
		Estimated Useful Lives in Years		December 31, 2013				December 31, 2012
	Land			$	1,868			$	2,107
	Buildings and improvements	May-40		4,971				4,601
	Machinery and equipment	27-Mar		15,222				12,720
	Construction in progress			2,644				3,018
	Real estate, plants and equipment			24,705				22,446
	Less: accumulated depreciation			(6,787		)		(5,556		)
	Real estate, plants and equipment, net			17,918				16,890
	Special tools, net	15-Jan		7,949				7,306
	Total property, net			$	25,867			$	24,196
	The amount of interest capitalized and excluded from Automotive interest expense related to Property, net was $81 million, $117 million and $91 million in the years ended December 31, 2013, 2012 and 2011.
	The following table summarizes the amount of capitalized software included in Property, net (dollars in millions):
		December 31, 2013				December 31, 2012
	Capitalized software in use, net	$	580			$	465
	Capitalized software in the process of being developed	$	50			$	108
	The following table summarizes depreciation, impairment charges and amortization expense related to Property, net, recorded in Automotive cost of sales, GM Financial operating and other expenses, and Automotive selling, general and administrative expense (dollars in millions):
		Years Ended December 31,
		2013				2012				2011
	Depreciation and amortization expense	$	3,959			$	3,888			$	3,604
	Impairment charges(a)	901				3,793				81
	Depreciation, impairment charges and amortization expense	$	4,860			$	7,681			$	3,685
	Capitalized software amortization expense(b)	$	244			$	209			$	203
	__________
	(a)	Includes GMIO assets whose fair value was $131 million at December 31, 2013. Includes GME assets whose fair value was $408 million at December 31, 2012. Also includes other assets whose fair value was determined to be $0 in the years ended December 31, 2013, 2012 and 2011 measured utilizing Level 3 inputs. Fair value measurements of the non-GMIO and non-GME asset group long-lived assets utilized projected cash flows discounted at a rate commensurate with the perceived business risks related to the assets involved.
	(b)	Included in total depreciation, impairment charges and amortization expense.
	Impairment Charges
	Year Ended December 31, 2013
	GM India
	In the three months ended December 31, 2013 we performed a strategic assessment of GM India in response to lower than expected sales performance of our current product offerings in India, higher raw material costs, unfavorable foreign exchange rates and recent deterioration in local market conditions. Our strategic review indicated that the existing long-lived assets of the GM India asset group were not recoverable. In the three months ended December 31, 2013 we recorded asset impairment charges of $280 million to adjust the carrying amount of GM India’s real and personal property to fair value of $45 million. These charges were recorded in our GMIO segment in Automotive cost of sales. Our recoverability test of the GM India asset group also included Intangible assets, net and Goodwill resulting in additional impairment charges of $103 million, for total impairment charges of $383 million. The noncontrolling interest portion of these charges was $35 million based on our 90.8% ownership of GM India. Refer to Note 11 for additional information regarding the impairment of Intangible assets, net and Note 10 for additional information regarding the impairment of Goodwill.
	GM Holden Ltd. (Holden)
	In December 2013 we announced plans to cease manufacturing and reduce engineering at our Holden subsidiary in Australia by the end of 2017. As a result we recorded asset impairment charges of $477 million to adjust the carrying amounts of certain long-lived assets of our Holden asset group to fair value of $71 million. These charges were recorded in our GMIO segment in Automotive cost of sales. Refer to Note 19 for additional information on the actions taken at Holden.
	Year Ended December 31, 2012
	During the second half of 2011 and continuing into 2012 the European automotive industry was severely affected by the ongoing sovereign debt crisis, high unemployment and a lack of consumer confidence coupled with overcapacity and we began to experience deterioration in cash flows. In response we formulated a plan to implement various actions to strengthen our operations and increase our competitiveness. During the fourth quarter of 2012 our industry outlook deteriorated further and our forecast of 2013 cash flows declined notwithstanding our actions. As a result we performed a recoverability test of the GME asset group by weighting various undiscounted cash flow scenarios and concluded the GME asset group was not recoverable. Accordingly we recorded asset impairment charges of $3.7 billion at December 31, 2012 to adjust the carrying amount of the GME real and personal property to fair value of $0.4 billion. These charges were recorded in our GME segment with $3.5 billion recorded in Automotive cost of sales and $0.2 billion recorded in Automotive selling, general and administrative expense. Our recoverability test of the GME asset group also included Intangible assets, net and other long-lived assets resulting in additional impairment charges of $1.8 billion, for total impairment charges of $5.5 billion. Refer to Note 11 for additional information regarding the impairment of Intangible assets, net.
	Fair Value Measurements
	To determine the estimated fair value of real and personal property, the cost approach, market approach and income approach were considered. Under the cost approach, the determination of fair value considered the estimates of the cost to construct or purchase a new asset of equal utility at current prices with adjustments in value for physical deterioration, functional obsolescence, and economic obsolescence. Under the market approach, the determination of fair value considered the market prices in transactions for similar assets and certain direct market values based on quoted prices from brokers and secondary market participants for similar assets. Under the income approach, the determination of fair value considered the estimate of the present worth of future benefits derived from ownership, usually measured through the capitalization of a specific level of income which can be derived from the subject asset with adjustments in value for demolition costs and for the effect of an estimated holding period. Under the income approach, it was assumed fair value could not exceed the present value of the net cash flows discounted at a rate commensurate with the level of risk inherent in the subject asset. An in-exchange premise was determined to be the highest and best use.
	The following table summarizes the significant Level 3 inputs for real and personal property measurements:
		Valuation Technique(s)		Unobservable Input(s)		Range
	GM India personal property	Market approach		Economic obsolescence(a)		72% - 100%
	Holden real property	Income approach		Holding period(b)		0 - 3 years
				Discount rate(c)		11% - 12%
	GME real property	Market approach		Demolition costs(d)		6% - 23%
		Cost approach		Holding period(b)		0 - 4 years
		Income approach		Discount rate(c)		11.2% - 14.5%
	GME personal property	Market approach		Physical deterioration(e)		52% - 69%
		Cost approach		Functional obsolescence(f)		8% - 28%
				Economic obsolescence(a)		17% - 23%
	__________
	(a)	Represents estimated loss in asset value caused by factors external to the asset such as legislative enactments, changes in use, social change and change in supply and demand.
	(b)	Represents estimated marketing period for each property which dictates the amount of property specific holding costs to be incurred such as real estate taxes.
	(c)	Represents the discount rate for the specific property based on local market sources and available benchmarking data.
	(d)	Represents estimated gross cost to demolish and clear the structures on the property as a percentage of replacement cost new.
	(e)	Represents estimated loss in asset value due to wear and tear, action of the elements and other physical factors that reduce the life and serviceability of the asset.
	(f)	Represents estimated loss in asset value caused by inefficiencies and inadequacies of the asset itself.
	The personal property in our Holden asset group was determined to have a nominal fair value because of anticipated losses during the wind-down period and limited to no salvage value given the decline in the automotive manufacturing base in Australia.
	The fair value estimates for GM India, Holden and GME real and personal property are based on a valuation premise that assumes the assets' highest and best use are different than their current use based on the forecasted financial results of the asset groups.

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2013
Goodwill [Abstract]	'
Goodwill [Text Block]	'
	Goodwill
	The following table summarizes the changes in the carrying amounts of Goodwill (dollars in millions):
		GMNA			GME			GMIO			GMSA			Total Automotive			GM Financial		Total
	Balance at January 1, 2012	$	26,399		$	581		$	610		$	151		$	27,741		$	1,278	$	29,019
	Impairment charges	(26,399		)	(590		)	(156		)	—			(27,145		)	—		(27,145		)
	Goodwill from business combinations(a)	—			—			61			—			61			—		61
	Effect of foreign currency and other	—			9			34			(5		)	38			—		38
	Balance at December 31, 2012	—			—			549			146			695			1,278		1,973
	Impairment charges	—			—			(541		)	—			(541		)	—		(541		)
	Goodwill from business combinations(a)	—			—			—			10			10			144		154
	Effect of foreign currency and other	—			—			(8		)	(18		)	(26		)	—		(26		)
	Balance at December 31, 2013	$	—		$	—		$	—		$	138		$	138		$	1,422	$	1,560
	Accumulated impairment charges at January 1, 2012	$	—		$	(2,482	)	$	(270	)	$	—		$	(2,752	)	$	—	$	(2,752	)
	Accumulated impairment charges at December 31, 2012	$	(26,399	)	$	(3,072	)	$	(426	)	$	—		$	(29,897	)	$	—	$	(29,897	)
	Accumulated impairment charges at December 31, 2013	$	(26,399	)	$	(3,072	)	$	(967	)	$	—		$	(30,438	)	$	—	$	(30,438	)
	_________
	(a)	Refer to Note 3 for additional information concerning the acquisitions.
	In the three months ended December 31, 2013, 2012, and 2011 we performed our annual goodwill impairment testing as of October 1 for all reporting units. In addition, in the years ended December 31, 2013, 2012 and 2011, we performed event-driven goodwill impairment tests at various dates for certain of our reporting units.
	GMNA
	Subsequent to our 2012 annual goodwill impairment testing, we reversed $36.2 billion of our deferred tax asset valuation allowances for our GMNA reporting unit. The reversal of the deferred tax asset valuation allowances resulted in the carrying amount of our GMNA reporting unit exceeding its fair value. As a result we performed an event-driven goodwill impairment test in the three months ended December 31, 2012 and recorded a Goodwill impairment charge of $26.4 billion. At December 31, 2012 GMNA's Goodwill balance was $0. Refer to Note 18 for additional information on the reversal of our deferred tax asset valuation allowances for our U.S. and Canadian operations.
	GME
	We adopted the provisions of ASU 2010-28, “When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts” (ASU 2010-28) on January 1, 2011 and performed Step 2 of the goodwill impairment testing analysis for our GME reporting unit which had a negative carrying amount resulting in the recognition of a cumulative-effect adjustment to beginning Retained earnings. GME continued to have a negative carrying amount and because it was more likely than not further goodwill impairment existed due to further deterioration in the business outlook for GME and increases in the fair value of estimated employee benefit obligations, we recorded Goodwill impairment charges of $590 million and $1.0 billion in the years ended December 31, 2012 and 2011. At December 31, 2012 GME's Goodwill balance was $0.
	GMIO
	Based on the results of our annual and event-driven goodwill impairment tests, we recorded total Goodwill impairment charges of $541 million, $156 million and $270 million in the years ended December 31, 2013, 2012 and 2011 within our GMIO segment. The impairment charges primarily related to our GM Korea Company (GM Korea) and Holden reporting units. We performed event-driven goodwill impairment tests for GM Korea in 2013, 2012 and 2011 as the fair value of GM Korea continued to be below its carrying amount due to ongoing economic weakness in certain markets to which GM Korea exports coupled with lower forecasted margins resulting from higher raw material costs and unfavorable foreign exchange rates. Furthermore, in the three months ended December 31, 2013 we announced our plans to cease mainstream distribution of Chevrolet brand in Western and Central Europe that resulted in the impairment of the remaining goodwill. Chevrolet sales in Europe are included in our GM Korea operations. We also recorded a Goodwill impairment charge in the three months ended December 31, 2013 associated with our GM India reporting unit resulting from lower forecasted profitability in India due to lower than expected sales performance of our current product offerings in India, higher raw material costs, unfavorable foreign exchange rates and recent deterioration in local market conditions. Refer to Note 9 for additional information on our operations in India. In the three months ended December 31, 2011 we reversed a deferred tax asset valuation allowance for our Holden reporting unit that resulted in the carrying amount of this reporting unit exceeding its fair value. At December 31, 2013 the goodwill balance was $0 for all of the reporting units in GMIO.
	Impairment Charges
	The impairment charges recorded as a result of the initial adoption of ASU 2010-28 and the annual and event-driven goodwill impairment tests in the years ended December 31, 2013, 2012 and 2011 represent the net decreases in implied goodwill resulting primarily from decreases in the fair value-to-U.S. GAAP differences attributable to those assets and liabilities that gave rise to goodwill upon our application of fresh-start reporting. The net decreases resulted primarily from the reversal of our deferred tax asset valuation allowances for certain reporting units thus resulting in the recorded amount for deferred taxes exceeding their fair values which under Accounting Standards Codification (ASC) 805, "Business Combinations" (ASC 805) results in less implied goodwill. The net decreases also resulted from improvements in our nonperformance risk and in our incremental borrowing rates since July 10, 2009. At certain of the testing dates the net decrease was also due to an increase in the high quality corporate bond rates utilized to measure our employee benefit obligations and a decrease in credit spreads between high quality corporate bond rates and market interest rates for companies with similar nonperformance risk. For the purpose of deriving an implied goodwill balance, deterioration in the business outlook and anticipated restructuring activities for GME and GM Korea resulted in a reduction in the fair value of certain tax attributes and an increase in estimated employee benefit obligations. The amount of implied goodwill derived from GM India decreased primarily from a reduction in the fair value of certain tax attributes.
	Fair Value Measurements
	When performing our goodwill impairment testing, the fair values of our reporting units were determined based on valuation techniques using the best available information, primarily discounted cash flow projections. We make significant assumptions and estimates, which utilized Level 3 measures, about the extent and timing of future cash flows, growth rates, market share and discount rates that represent unobservable inputs into our valuation methodologies. Our fair value estimates for annual and event-driven impairment tests assume the achievement of the future financial results contemplated in our forecasted cash flows and there can be no assurance that we will realize that value.
	The valuation methodologies utilized to perform our goodwill impairment testing were consistent with those used in our application of fresh-start reporting on July 10, 2009 and in any subsequent annual or event-driven goodwill impairment tests and utilized Level 3 measures. Because the fair value of goodwill can be measured only as a residual amount and cannot be determined directly we calculated the implied goodwill for those reporting units failing Step 1 in the same manner that goodwill is recognized in a business combination pursuant to ASC 805.

Intangible_Assets_net

Intangible Assets, net	12 Months Ended
	Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]	'
Intangible Assets, net [Text Block]	'
	Intangible Assets, net
	The following table summarizes the components of Intangible assets, net (dollars in millions):
		December 31, 2013							December 31, 2012
		Gross Carrying Amount			Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	Technology and intellectual property	$	8,210		$	7,308	$	902	$	7,775	$	6,320	$	1,455
	Brands	4,466			559		3,907		4,464		431		4,033
	Dealer network and customer relationships	1,108			364		744		1,375		327		1,048
	Favorable contracts and other	345			326		19		384		286		98
	Total amortizing intangible assets	14,129			8,557		5,572		13,998		7,364		6,634
	Nonamortizing in process research and development	96					96		175				175
	Total intangible assets	$	14,225		$	8,557	$	5,668	$	14,173	$	7,364	$	6,809
	In December 2012 we entered into a product development agreement with PSA to collaborate on the development of certain vehicle platforms, components and modules. As a result of this agreement, in the three months ended March 31, 2013 we acquired the rights to certain technology and intellectual property for total consideration of $642 million. Consideration of $201 million was paid in cash in May 2013 with the remaining consideration to be paid by May 2018. The acquired rights were recorded at the present value of the total payments to be made as technology and intellectual property of $594 million.
	In December 2013 we agreed with PSA to mutually cancel development of one of the vehicle programs and reduce the amount of remaining consideration to be paid, resulting in a net charge of $49 million recorded in Automotive cost of sales in GMNA. The net charge consisted of an impairment of the associated intellectual property of $211 million and a reduction of total consideration from $642 million to $480 million.
	The following table summarizes the amortization expense and impairment charges related to Intangible assets, net (dollars in millions):
		Years Ended December 31,
		2013			2012		2011
	Amortization expense	$	1,281		$	1,568	$	1,804
	Impairment charges	$	523		$	1,755	$	—
	The following table summarizes estimated amortization expense related to Intangible assets, net in each of the next five years (dollars in millions):
		2014			2015		2016		2017		2018
	Estimated amortization expense	$	672		$	330	$	310	$	305	$	300
	Impairment Charges
	Year Ended December 31, 2013
	GM India
	In the three months ended December 31, 2013 we recorded impairment charges of $48 million to adjust the carrying amounts of Intangible assets, net, primarily favorable contract intangibles, to fair value of $0, because of a lack of economic support associated with GM India's declining operations. These charges were recorded in our GMIO segment primarily in Automotive cost of sales. Refer to Note 9 for additional information regarding the triggering events of the impairment charge in India and information on the impairment of Property, net.
	Withdrawal of the Chevrolet Brand from Europe
	In the three months ended December 31, 2013 we recorded impairment charges of $264 million to adjust the carrying amounts of Intangible assets, net, primarily dealer network intangibles, to fair value because we are winding down the dealer network in 2014 and we expect to incur losses during the wind-down period. These charges were recorded in our GMIO segment in Automotive cost of sales. Refer to Note 19 for additional information on the withdrawal of the Chevrolet brand from Europe.
	Year Ended December 31, 2012
	We adjusted the carrying amount of the GME intangible assets to their fair value of $139 million and recorded asset impairment charges of $1.8 billion at December 31, 2012. These charges were recorded in our GME segment with $1.6 billion recorded in Automotive selling, general and administrative expense and $0.2 billion recorded in Automotive cost of sales. The fair value estimates for GME's intangible assets are based on a valuation premise that assumes the assets' highest and best use are different than their current use due to the overall European macro-economic environment.
	Our recoverability test of the GME asset group includes real and personal property, resulting in additional impairment charges of $3.7 billion, for total impairment charges of $5.5 billion. Refer to Note 9 for additional information regarding the impairment of real and personal property.
	To determine the estimated fair value of the brand intangible assets we used the relief from royalty method which is a form of the income approach. Under this approach revenue associated with the brand is projected over the expected remaining useful life of the asset. A royalty rate is then applied to estimate the royalty savings. The royalty rate used was based on an analysis of empirical, market-derived royalty rates for guideline intangible assets and a profit split analysis to determine a rate that is economically supported by GME's forecasted profitability. The net after-tax royalty savings are calculated for each year during the remaining economic life of the asset and discounted to present value.
	To determine the estimated fair value of the dealer network we used the cost approach with adjustments in value for the overcapacity of dealers and the sales environment in the region. We determined the fair value to be $0.
	The following table summarizes the significant Level 3 inputs for brand intangible assets measurements:
			Valuation Technique	Unobservable Input(s)		Percentage
	Brand intangible assets		Income approach	Long-term growth rate		0.50%
				Pre-tax royalty rate(a)		0.14%
				Discount rate(b)		21.25%
	__________
	(a)	Represents estimated savings realized from owning the asset or having the royalty-free right to use the asset.
	(b)	Represents WACC adjusted for perceived business risks related to these intangible assets.

Variable_Interest_Entities

Variable Interest Entities	12 Months Ended
	Dec. 31, 2013
Variable Interest Entities [Abstract]	'
Variable Interest Entities [Text Block]	'
	Variable Interest Entities
	Consolidated VIEs
	Automotive
	VIEs that we do not control through a majority voting interest that are consolidated because we are the primary beneficiary include certain vehicle assembling, manufacturing and selling venture arrangements, the most significant of which is GM Egypt. At December 31, 2013 and 2012: (1) Total assets of these VIEs were $564 million and $436 million, which were composed of Cash and cash equivalents, Accounts and notes receivables, net, Inventories, and Property, net; and (2) Total liabilities were $395 million and $254 million, which were composed of Accounts payable (principally trade) and Accrued liabilities. In the years ended December 31, 2013 and 2012 Total net sales and revenue recorded for these consolidated VIEs were $1.1 billion and $1.0 billion and Net income was $55 million and $56 million. These amounts are stated prior to intercompany eliminations. Liabilities recognized as a result of consolidating VIEs generally do not represent claims against us or our other subsidiaries and assets recognized generally are for the benefit of the VIEs' operations and cannot be used to satisfy our obligations.
	GM Korea and GM India are non-wholly owned consolidated subsidiaries that we control through a majority voting interest. They are also VIEs because in the future they may require additional subordinated financial support. At December 31, 2013 and 2012 the combined creditors of GM Korea's and GM India's liabilities of $242 million and $368 million, which were composed of short-term debt, current derivative liabilities and long-term debt, do not have recourse to our general credit.
	Automotive Financing - GM Financial
	GM Financial uses special purpose entities (SPEs) that are considered VIEs to issue variable funding notes to third party bank-sponsored warehouse facilities or asset-backed securities to investors in securitization transactions. The debt issued by these VIEs is backed by the cash flows related to finance receivables and leasing related assets transferred by GM Financial to the VIEs (Securitized Assets). GM Financial holds variable interests in the VIEs that could potentially be significant to the VIEs. GM Financial determined that it is the primary beneficiary of the SPEs because (1) the servicing responsibilities for the Securitized Assets give it the power to direct the activities that most significantly impact the performance of the VIEs and (2) the variable interests in the VIEs give it the obligation to absorb losses and the right to receive residual returns that could potentially be significant. The assets and liabilities of the VIEs are included in GM Financial's consolidated balance sheets. The amounts are stated prior to intercompany eliminations.
	The following table summarizes the assets and liabilities related to GM Financial's consolidated VIEs (dollars in millions):
		December 31, 2013		December 31, 2012
	Restricted cash	$	1,523	$	744
	Securitized Assets	$	23,584	$	10,442
	Securitization notes payable and other credit facilities	$	19,448	$	9,378
	Restricted cash represents collections from the underlying Securitized Assets and certain reserve accounts held as credit enhancement for securitizations held by GM Financial for the benefit of the noteholders. Except for the acquisition accounting adjustments, which are not recorded in SPE trusts, GM Financial recognizes finance charge income, leased vehicle income and other income on the Securitized Assets and interest expense on the secured debt issued by the SPEs. GM Financial also maintains an allowance for credit losses on the Securitized Assets. Cash pledged to support the secured borrowings is deposited to a restricted cash account which is invested in highly liquid securities with original maturities of 90 days or less.
	The assets of the VIEs and the restricted cash held by GM Financial serve as the sole source of repayment for the debt issued by these entities. Investors in the notes issued by the VIEs do not have recourse to GM Financial or its other assets, with the exception of customary representation and warranty repurchase provisions and indemnities that GM Financial provides as the servicer. GM Financial is not required and does not currently intend to provide additional financial support to these SPEs. While these subsidiaries are included in our consolidated financial statements, these subsidiaries are separate legal entities and their assets are legally owned by them and are not available to GM Financial's creditors.
	Nonconsolidated VIEs
	Automotive
	VIEs that are not consolidated include certain vehicle assembling, manufacturing and selling venture arrangements and other automotive related entities to which we provided financial support, including GM India prior to September 2012 and Ally Financial. We concluded these entities are VIEs because they do not have sufficient equity at risk or may require additional subordinated financial support. We currently lack the power through voting or similar rights to direct those activities of these entities that most significantly affect their economic performance. Our variable interests in these nonconsolidated VIEs include accounts and notes receivable, equity in net assets, guarantees and financial support, some of which were provided to certain current or previously divested suppliers in order to ensure that supply needs for production were not disrupted due to a supplier's liquidity concerns or possible shutdowns.
	At December 31, 2013 and 2012 our variable interests in these VIEs included: (1) Total assets of $169 million and $351 million, which were composed of Accounts and notes receivable, net and Equity in net assets of nonconsolidated affiliates; (2) Total liabilities of $838 million and $1.9 billion, which were composed of Accounts payable (principally trade), Short-term debt and current portion of long-term debt, Accrued liabilities and Other liabilities and deferred income taxes; and (3) Total off-balance sheet arrangements of $115 million and $32 million, which were composed of loan commitments and other liquidity arrangements. The amount of total off-balance sheet arrangements at December 31, 2013 includes contractual commitments under an agreement with a supplier that became a VIE in January 2013. The maximum exposure to loss for total assets approximated the carrying amount at December 31, 2013 and 2012. Refer to Note 17 for additional information on our maximum exposure to loss under agreements with Ally Financial.
	Ally Financial Common Stock
	At December 31, 2012 we held a 9.9% common equity ownership in Ally Financial with carrying amount and fair value of $399 million and $1.3 billion. We estimated the fair value of Ally Financial common stock using a market approach that applied the average price to tangible book value multiples of comparable companies to the consolidated Ally Financial tangible book value. The significant inputs used in our fair value analyses included Ally Financial's financial statements, financial statements and price to tangible book value multiples of comparable companies in the banking and finance industry and the effects of certain Ally Financial shareholder rights. The inputs used in the measurement of the fair value are Level 3 inputs. In December 2013 we sold our investment through a private offering for net proceeds of $880 million and recorded a gain of $483 million in Interest income and other non-operating income, net.
	Ally Financial Preferred Stock
	In March 2011 our investment in Ally Financial preferred stock was sold through a public offering for net proceeds of $1.0 billion. The gain of $339 million related to the sale was recorded in Interest income and other non-operating income, net.

Accrued_Liabilities_Other_Liab

Accrued Liabilities, Other Liabilities and Deferred Income Taxes	12 Months Ended
	Dec. 31, 2013
Accrued Liabilities and Other Liabilities [Abstract]	'
Accrued Liabilities, Other Liabilities and Deferred Income Taxes [Text Block]	'
	Accrued Liabilities, Other Liabilities and Deferred Income Taxes
	The following table summarizes the components of Accrued liabilities and Other liabilities and deferred income taxes (dollars in millions):
		December 31, 2013			December 31, 2012
	Current
	Dealer and customer allowances, claims and discounts	$	7,919		$	7,722
	Deposits primarily from rental car companies	4,713			4,250
	Deferred revenue	1,276			1,326
	Policy, product warranty and recall campaigns	2,559			2,919
	Payrolls and employee benefits excluding postemployment benefits	2,285			2,144
	Other	5,881			4,947
	Total accrued liabilities	$	24,633		$	23,308
	Non-current
	Deferred revenue	$	1,249		$	1,169
	Policy, product warranty and recall campaigns	4,655			4,285
	Employee benefits excluding postemployment benefits	1,192			1,359
	Postemployment benefits including facility idling reserves	1,216			1,518
	Other	5,041			4,838
	Total other liabilities and deferred income taxes	$	13,353		$	13,169
	The following table summarizes activity for policy, product warranty and recall campaigns (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Beginning balance	$	7,204		$	6,600		$	6,789
	Warranties issued and assumed in period	3,181			3,394			3,062
	Payments	(3,063		)	(3,393		)	(3,740		)
	Adjustments to pre-existing warranties	123			539			565
	Effect of foreign currency and other	(231		)	64			(76		)
	Ending balance	$	7,214		$	7,204		$	6,600

ShortTerm_and_LongTerm_Debt

Short-Term and Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Short-Term and Long-Term Debt [Text Block]	'
	Short-Term and Long-Term Debt
	Automotive
	The following table summarizes the components of our short-term debt and long-term debt (dollars in millions):
		December 31, 2013			December 31, 2012
	Secured debt	$	320		$	1,182
	Unsecured debt
	Senior unsecured notes	4,500			—
	Canadian Health Care Trust (HCT) notes	—			1,239
	Other unsecured debt	1,352			1,713
	Total unsecured debt	5,852			2,952
	Capital leases	965			1,038
	Total automotive debt(a)	7,137			5,172
	Less: short-term debt and current portion of long-term debt	564			1,748
	Total long-term debt	$	6,573		$	3,424
	Fair value of automotive debt(b)	$	6,837		$	5,298
	Available under credit facility agreements	$	10,404		$	11,119
	Interest rate range on outstanding debt(c)	0.0-19.0%			0.0-19.0%
	Weighted-average interest rate on outstanding short-term debt(c)	9		%	3.7		%
	Weighted-average interest rate on outstanding long-term debt(c)	3.8		%	4		%
	__________
	(a)	Net of a $765 million and $1.1 billion net discount at December 31, 2013 and 2012.
	(b)	The fair value of debt includes $6.8 billion and $4.1 billion measured utilizing Level 2 inputs at December 31, 2013 and 2012 and $1.2 billion measured utilizing Level 3 inputs at December 31, 2012.
	(c)	Includes coupon rates on debt denominated in various foreign currencies and interest free loans.
	The Level 2 fair value measurements utilize quoted market prices and if unavailable, a discounted cash flow model. The valuation is reviewed internally by personnel with appropriate expertise in valuation methodologies. This model utilizes observable inputs such as contractual repayment terms and benchmark yield curves, plus a spread that is intended to represent our nonperformance risk for secured or unsecured obligations. We estimate our nonperformance risk using our corporate credit rating, the ratings on our senior unsecured notes and on our secured revolver, yields on traded bonds of companies with comparable credit ratings and risk profiles. We acquire the benchmark yield curves and nonperformance risk spread from independent sources that are widely used in the financial industry. In certain circumstances we adjust the valuation of debt for additional nonperformance risk or potential prepayment probability scenarios. We may use a probability weighting of prepayment scenarios when the stated rate exceeds market rates and the instrument contains prepayment features. The prepayment scenarios are adjusted to reflect the views of market participants. The fair value measurements subject to additional adjustments for nonperformance risk or prepayment have been categorized in Level 3.
	Secured Debt
	Wholesale financing represents arrangements, primarily with Ally Financial, where cash is received in advance of the final sale of vehicles, parts and accessories to our dealers or ultimate consumer. These obligations typically settle through the sale and delivery of our products and generally do not require cash outflows to settle. Following GM Financial's acquisition of the Ally Financial international operations in April 2013, most of the wholesale financing balance classified as debt became intercompany debt and was eliminated in consolidation, resulting in a decrease to our automotive debt balance of $682 million.
	Secured Revolving Credit Facilities
	In November 2012 we entered into two new secured revolving credit facilities with an aggregate borrowing capacity of $11.0 billion. These facilities consist of a three-year, $5.5 billion facility and a five-year, $5.5 billion facility and replaced our previous five-year, $5.0 billion secured revolving credit facility. Availability under the secured revolving credit facilities is subject to borrowing base restrictions.
	The three-year, $5.5 billion facility is available to GM Financial as well as certain wholly-owned domestic and international subsidiaries. The facility includes various sub-limits including a GM Financial borrowing sub-limit of $4.0 billion, a multi-currency borrowing sub-limit of $3.5 billion, a Brazilian Real borrowing sub-limit of approximately $485 million and a letter of credit sub-facility limit of $1.5 billion. We had amounts in use under the letter of credit sub-facility of $625 million at December 31, 2013.
	The five-year, $5.5 billion facility allows for borrowings in U.S. Dollars and other currencies and includes a letter of credit sub-limit of $500 million. This facility is not available to GM Financial.
	Our obligations under the secured revolving credit facilities are guaranteed by certain of our domestic subsidiaries and by a substantial portion of our domestic assets including accounts receivable, inventory, property, plant and equipment, intellectual property and trademarks, equity interests in certain of our direct domestic subsidiaries as well as up to 65% of the voting equity interests in certain of our direct foreign subsidiaries, in each case, subject to certain exceptions. The collateral securing the secured revolving credit facilities does not include, among other assets, cash, cash equivalents and marketable securities as well as our investments in GM Financial, GM Korea and in our China JVs. If we receive and maintain an investment grade corporate rating from two or more of the following credit rating agencies: Fitch Ratings, Moody's Investor Service and Standard & Poor's, we will no longer have to post collateral or provide guarantees from certain domestic subsidiaries under the terms of the facilities.
	The secured revolving credit facilities contain representations, warranties and covenants customary of these types of facilities, including negative covenants restricting incurring liens, consummating mergers or sales of assets and incurring secured indebtedness, and restricting us from making restricted payments, in each case, subject to exceptions and limitations. These restricted payments include limitations on the amount of dividend payments and repurchases of our common stock. These restrictions can be mitigated based on various factors including but not limited to cash flows generated from operating and investing activities, prior restricted payments, our borrowing base coverage ratio, consolidated global liquidity and other provisions. The facilities also require us to maintain at least $4.0 billion in consolidated global liquidity and at least $2.0 billion in consolidated U.S. liquidity.
	Interest rates on obligations under the secured revolving credit facilities are based on prevailing per annum interest rates for Eurodollar loans or an alternative base rate plus an applicable margin, in each case, based upon the credit rating assigned to the secured revolving credit facilities or our corporate rating depending on certain criteria.
	Unsecured Debt
	Senior Unsecured Notes
	In September 2013 we issued $4.5 billion in aggregate principal amount of senior unsecured notes comprising $1.5 billion of 3.5% notes due in 2018, $1.5 billion of 4.875% notes due in 2023 and $1.5 billion of 6.25% notes due in 2043. These notes contain terms and covenants customary of these types of securities including limitations on the amount of the secured debt we may issue.
	In connection with the issuance of these notes we entered into a registration rights agreement that requires us to file a registration statement with the Securities and Exchange Commission (SEC) for an exchange offer with respect to the senior notes. If the registration statement has not been declared effective by the SEC within 365 days after the closing date of the debt issuance, if we fail to consummate the exchange offer within 30 business days after such target effective date or if the registration statement ceases to remain effective, we will be required to pay additional interest of 0.25% per annum for the first 90 day period following such event and an additional 0.25% per annum for each subsequent 90 day period prior to the consummation of the exchange offer up to a maximum additional interest rate of 0.5% per annum.
	HCT Notes
	As part of the establishment of the HCT to provide retiree healthcare benefits to certain active and retired employees in Canada, we issued notes to the HCT with a fair value of $1.1 billion in October 2011. We recorded a premium of $42 million at issuance. The notes accrued interest at an annual rate of 7.0%. The notes were due in periodic installments through 2018. In October 2013 we prepaid the HCT notes in full for $1.2 billion. Refer to Note 15 for additional information on the HCT settlement.
	GM Korea Preferred Shares
	Prior to April 2013 GM Korea had outstanding non-convertible mandatorily redeemable preferred shares. Dividends accrued at a rate of 2.5% through October 2012 and increased to 7.0% through 2017. In December 2012 GM Korea made a payment of $671 million to redeem early a portion of shares that had a carrying amount of $429 million and the difference was recorded as a loss on extinguishment of debt. In April 2013 GM Korea made a payment of $708 million to redeem early the remaining balance of the shares that had a carrying amount of $468 million and the difference was recorded as a loss on extinguishment of debt.
	Gains (Losses) on Extinguishment of Debt
	In the year ended December 31, 2013 we prepaid and retired debt obligations with a total carrying amount of $1.8 billion and recorded a net loss on extinguishment of debt of $212 million which primarily represented the unamortized debt discount on the GM Korea mandatorily redeemable preferred shares. In the year ended December 31, 2012 we prepaid and retired debt obligations with a total carrying amount of $514 million and recorded a net loss on extinguishment of debt of $250 million which primarily represented the unamortized debt discount on the GM Korea mandatorily redeemable preferred shares. In the year ended December 31, 2011 we prepaid and retired in full debt facilities of $1.0 billion held by certain of our subsidiaries, primarily in GMNA and GMSA, and recorded a gain on these debt facilities of $18 million.
	Technical Defaults and Covenant Violations
	Several of our loan facilities, including our secured revolving credit facilities, require compliance with certain financial and operational covenants as well as regular reporting to lenders, including providing certain subsidiary financial statements. Failure to meet certain of these requirements may result in a covenant violation or an event of default depending on the terms of the agreement. An event of default may allow lenders to declare amounts outstanding under these agreements immediately due and payable, to enforce their interests against collateral pledged under these agreements or restrict our ability to obtain additional borrowings. A foreign subsidiary was not in compliance with certain financial covenants under its $77 million term loan facility. We are evaluating alternatives to cure this financial covenant issue and included this liability in Short-term debt and current portion of long-term debt.
	Automotive Financing - GM Financial
	The following table summarizes the carrying amount and fair value of debt (dollars in millions):
			December 31, 2013						December 31, 2012
			Carrying Amount			Fair Value(a)			Carrying Amount		Fair Value(a)
	Secured
	Revolving credit facilities		$	9,000		$	8,995		$	354	$	354
	Securitization notes payable(b)		13,073			13,175			9,024		9,171
	Total secured		22,073			22,170			9,378		9,525
	Unsecured
	Senior notes		4,000			4,106			1,500		1,620
	Bank lines and other unsecured debt		2,973			2,972			—		—
	Total unsecured		6,973			7,078			1,500		1,620
	Total GM Financial debt		$	29,046		$	29,248		$	10,878	$	11,145
	_______
	(a)	The fair value of debt includes $23.0 billion and $11.1 billion measured utilizing Level 2 inputs at December 31, 2013 and 2012 and $6.2 billion measured utilizing Level 3 inputs at December 31, 2013. For revolving credit facilities with variable interest rates and maturities of one year or less, the carrying amount is considered to be a reasonable estimate of fair value. The fair value of other secured debt and the unsecured debt is based on quoted market prices, when available. If quoted market prices are not available, the market value is estimated by discounting future net cash flows expected to be paid using current risk-adjusted rates.
	(b)	Includes a private securitization that GM Financial used observable and unobservable inputs to estimate fair value. Unobservable inputs are related to the structuring of the debt into various classes, which is based on public securitizations issued during the same time frame. Observable inputs are used by obtaining active prices based on the securitization debt issued during the same time frame. These observable inputs are then used to create expected market prices (unobservable inputs), which are then applied to the debt classes in order to estimate fair value which would approximate market value.
	Secured
	Revolving Credit Facilities
The revolving credit facilities have revolving periods ranging from one to three years. At the end of the revolving period, if the facilities are not renewed, the debt will amortize over periods ranging up to six years. Most of the secured debt was issued by VIEs and it is repayable only from proceeds related to the underlying pledged finance receivables and leases. Refer to Note 12 for additional information relating to GM Financial's involvement with VIEs. Weighted-average interest rates are both fixed and variable, ranging from 0.9% to 15.9% at December 31, 2013.
GM Financial is required to hold certain funds in restricted cash accounts to provide additional collateral for borrowings under certain secured credit facilities. Additionally, some of GM Financial’s secured credit facilities contain various covenants requiring minimum financial ratios, asset quality and portfolio performance ratios (portfolio net loss and delinquency ratios and pool level cumulative net loss ratios) as well as limits on deferment levels. Failure to meet any of these covenants could result in an event of default under these agreements. If an event of default occurs under these agreements the lenders could elect to declare all amounts outstanding under these agreements to be immediately due and payable, enforce their interests against collateral pledged under these agreements, restrict GM Financial’s ability to obtain additional borrowings under these agreements and/or remove GM Financial as servicer. At December 31, 2013 GM Financial was in compliance with all covenants related to its credit facilities.
In the year ended December 31, 2013 GM Financial entered into two new credit facilities with a total borrowing capacity of $1.3 billion. At December 31, 2013 revolving credit facilities of $7.3 billion resulted from the acquisition of the Ally Financial international operations.
Securitization Notes Payable
Securitization notes payable represents debt issued by GM Financial through securitization transactions. Debt issuance costs are amortized over the expected term of the securitizations on an effective yield basis. As a result of GM Financial's acquisition of the Ally Financial international operations, GM Financial recorded a purchase accounting discount of $69 million that will amortize to interest expense over the expected term of the notes. At December 31, 2013 the remaining purchase accounting discount of $47 million is included in Total secured debt.
At the time of securitization of finance receivables, GM Financial is required to pledge assets equal to a specified percentage of the securitization pool to support the securitization transaction. The assets pledged consist of cash deposited to a restricted account and additional receivables delivered to the trust, which create overcollateralization. The securitization transactions require the percentage of assets pledged to support the transaction to increase until a specified level is attained. Excess cash flows generated by the trusts are added to the restricted cash account or used to pay down outstanding debt in the trusts, creating overcollateralization until the targeted percentage level of assets is reached. Once the targeted percentage level of assets is reached and maintained, excess cash flows generated by the trusts are released to GM Financial as distributions from trusts. As the balance of the securitization pool declines, the amount of pledged assets needed to maintain the required percentage level is reduced. Assets in excess of the required percentage are also released to GM Financial as distributions from trusts.
In the year ended December 31, 2013 GM Financial issued securitization notes payable of $6.8 billion with a weighted-average interest rate of 1.7% maturing on various dates through 2021. At December 31, 2013 securitization notes payable of $2.3 billion resulted from the acquisition of the Ally Financial international operations.
Unsecured
Senior Notes
In May 2013 GM Financial issued $2.5 billion in aggregate principal amount of senior notes due in 2016 through 2023 with interest rates that range from 2.75% to 4.25%. In August 2012 GM Financial issued 4.75% senior notes of $1.0 billion which are due in August 2017 with interest payable semiannually. Senior notes outstanding at December 31, 2013 are due beginning in 2016 through 2023 and have interest rates that range from 2.75% to 6.75%. The notes are guaranteed by GM Financial's principal operating subsidiary.
Bank Lines and Other Unsecured Debt
The maturity dates of bank lines and other unsecured debt, which was assumed in the acquisition of the Ally Financial international operations, range up to five years. If not renewed, any balance outstanding under these bank lines is either immediately due in full or will amortize over a defined period. Interest rates on bank lines and other unsecured debt ranged from 1.1% to 12.9% at December 31, 2013.
Consolidated
Interest Expense
The following table summarizes interest expense (dollars in millions):
	Years Ended December 31,
	2013			2012			2011
Automotive	$	334		$	489		$	540
Automotive Financing - GM Financial	715			283			204
Total interest expense	$	1,049		$	772		$	744
Debt Maturities
The following table summarizes contractual maturities including capital leases at December 31, 2013 (dollars in millions):
	Automotive			Automotive Financing(a)			Total
2014	$	543		$	13,594		$	14,137
2015	147			6,473			6,620
2016	109			4,199			4,308
2017	496			2,337			2,833
2018	1,582			1,693			3,275
Thereafter	5,025			750			5,775
	$	7,902		$	29,046		$	36,948
________
(a)	Secured debt, bank lines and other unsecured debt are based on expected payoff date. Senior notes principal amounts are based on maturity.
At December 31, 2013 future interest payments on automotive capital lease obligations were $578 million. GM Financial had no capital lease obligations at December 31, 2013.

Pensions_And_Other_Postretirem

Pensions And Other Postretirement Benefits	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Pensions and Other Postretirement Benefits [Text Block]	'
	Pensions and Other Postretirement Benefits
	Employee Pension and Other Postretirement Benefit Plans
	Defined Benefit Pension Plans
	Defined benefit pension plans covering eligible U.S. hourly employees (hired prior to October 2007) and Canadian hourly employees generally provide benefits of negotiated, stated amounts for each year of service and supplemental benefits for employees who retire with 30 years of service before normal retirement age. The benefits provided by the defined benefit pension plans covering eligible U.S. (hired prior to January 1, 2001) and Canadian salaried employees and employees in certain other non-U.S. locations are generally based on years of service and compensation history. Accrual of defined pension benefits ceased on September 30, 2012 for U.S. salaried employees and on December 31, 2012 for Canadian salaried employees. There is also an unfunded nonqualified pension plan covering primarily U.S. executives for service prior to January 1, 2007 and it is based on an “excess plan” for service after that date.
	Pension Contributions
	The funding policy for qualified defined benefit pension plans is to contribute annually not less than the minimum required by applicable law and regulations or to directly pay benefit payments where appropriate. At December 31, 2013 all legal funding requirements had been met. We expect to contribute $100 million to our U.S. non-qualified plans and $749 million to our non-U.S. pension plans in 2014. The following table summarizes contributions made to the defined benefit pension plans (dollars in millions):
		Years Ended December 31,
		2013				2012				2011
	U.S. hourly and salaried	$	128			$	2,420			$	1,962
	Non-U.S.	886				855				836
	Total	$	1,014			$	3,275			$	2,798
	We made a voluntary contribution in January 2011 to our U.S. hourly and salaried defined benefit pension plans of 61 million shares of our common stock valued at $2.2 billion for funding purposes at the time of contribution. The contributed shares qualified as a plan asset for funding purposes at the time of contribution and as a plan asset valued at $1.9 billion for accounting purposes in July 2011. This was a voluntary contribution above our funding requirements for the pension plans.
	We continue to pursue various options to fund and derisk our pension plans, including continued changes to the pension asset portfolio mix to reduce funded status volatility.
	Other Postretirement Benefit Plans
	Certain hourly and salaried defined benefit plans provide postretirement medical, dental, legal service and life insurance to eligible U.S. and Canadian retirees and their eligible dependents. Certain other non-U.S. subsidiaries have postretirement benefit plans, although most non-U.S. employees are covered by government sponsored or administered programs.
	OPEB Contributions
	The following table summarizes contributions to the U.S. OPEB plans (dollars in millions):
		Years Ended December 31,
		2013				2012				2011
	Employer contributions	$	393			$	432			$	426
	Plan participants' contributions	29				4				13
	Total contributions	$	422			$	436			$	439
	For the year ended December 31, 2011 we also contributed $1.9 billion to the independent HCT consisting of restricted cash of $782 million and notes payable of $1.1 billion.
	Defined Contribution Plans
	We have a defined contribution plan for eligible U.S. salaried employees. This plan provides discretionary matching contributions which we instituted in October 2009. U.S. hourly employees hired after September 2007 also participate in a defined contribution plan. Contributions are also made to certain non-U.S. defined contribution plans. We made contributions to our defined contribution plans of $502 million, $352 million and $297 million in the years ended December 31, 2013, 2012 and 2011.
	Significant Plan Amendments, Benefit Modifications and Related Events
	U.S. Salaried Defined Benefit Life Insurance Plan
	In September 2013 we amended the U.S. salaried life insurance plan effective January 1, 2014 to eliminate benefits for retirees and eligible employees retiring on or after August 1, 2009. The remeasurement, settlement and curtailment resulted in a decrease in the OPEB liability of $319 million, a decrease in the net pre-tax actuarial loss component of Accumulated other comprehensive loss of $236 million and a pre-tax gain of $83 million.
	U.S. Salaried Defined Benefit Pension Plan
	In 2012 we amended the salaried pension plan to cease the accrual of additional benefits effective September 30, 2012 resulting in a curtailment of $309 million which decreased the pension liability. We divided the plan to create a new legally separate defined benefit plan primarily for active and terminated vested participants. Settlement payments of $30.6 billion were made consisting of lump-sum pension distributions of $3.6 billion to retired salaried plan participants, group annuity contracts purchased for a total annuity premium of $25.1 billion and two separate previously guaranteed obligations of $1.9 billion were settled. These agreements unconditionally and irrevocably guarantee the full payment of all annuity payments to the participants that were receiving payments from the plan and the insurance companies assumed all investment risk associated with the assets that were delivered as the annuity contract premiums.
	Through these transactions we have settled certain pension obligations in their entirety resulting in a pre-tax settlement loss of $2.6 billion ($2.2 billion after tax) in Automotive cost of sales. The pre-tax loss is composed of existing losses in Accumulated other comprehensive loss of $377 million, and the premium paid to the insurance company of $2.1 billion. The tax benefit of $413 million is composed of the statutory tax benefit of $1.0 billion offset by tax expense of $596 million primarily associated with the removal of prior period income tax allocations between Accumulated other comprehensive loss and Income tax expense (benefit).
	In 2012 we provided short-term, interest-free, unsecured loans of $2.2 billion to provide the plan with incremental liquidity to pay ongoing benefits and administrative costs. Contributions of $1.7 billion were made from the $2.2 billion loans. Through December 31, 2012 $430 million was repaid and $90 million of the loan was still outstanding. In the year ended December 31, 2013 $60 million was repaid and the remaining $30 million was deemed a plan contribution.
	Active salaried plan participants began receiving additional contributions in the defined contribution plan in October 2012.  Lump-sum pension distributions in 2013 of $430 million resulted in a pre-tax settlement gain of $128 million.
	Canadian Salaried Defined Benefit Plans
	In June 2012 we amended the Canadian salaried pension plan to cease the accrual of additional benefits effective December 31, 2012 and provide active employees a lump-sum distribution option at retirement. The remeasurement, amendments and offsetting curtailment increased the pension liability by $84 million. Active plan participants started receiving additional contributions in the defined contribution plan starting in January 2013.
	We also amended the Canadian salaried retiree healthcare plan to eliminate post-65 healthcare benefits for employees retiring on or after July 1, 2014. In conjunction with this change we amended the plan to offer either a monthly monetary payment or an annual lump-sum cash payment to a defined contribution plan for health care in lieu of the benefit coverage provisions formerly provided under the healthcare plan. These amendments decreased the OPEB liability by $28 million.
	Canadian HCT
	In October 2011 pursuant to a June 2009 agreement between General Motors of Canada Limited (GMCL) and the CAW an independent HCT was implemented to provide retiree healthcare benefits to certain active and retired employees. Concurrent with the implementation of the HCT, GMCL was legally released from all obligations associated with the cost of providing retiree healthcare benefits to CAW retirees and surviving spouses by the class action process and to CAW active employees as of June 8, 2009. We accounted for the related termination of CAW hourly retiree healthcare benefits as a settlement and recorded a gain of $749 million in Automotive cost of sales. The settlement gain represents the difference between the healthcare plan obligation of $3.1 billion (as of the implementation date) and the fair value of the notes and restricted cash contributed totaling $1.9 billion, and recognition of Accumulated other comprehensive loss of $414 million.
	Other Remeasurements
	In March 2012 certain pension plans in GME were remeasured as part of our goodwill impairment testing, resulting in an increase of $150 million in the pension liability and a pre-tax increase in the net actuarial loss component of Accumulated other comprehensive loss.
	In September 2011 a plan which provided legal services to U.S. hourly employees and retirees was remeasured as a result of our labor agreement provisions which terminated the plan effective December 31, 2013. The negotiated termination has been accounted for as a negative plan amendment resulting in a decrease in the OPEB liability and a pre-tax increase of $266 million in the prior service credit component of Accumulated other comprehensive loss was amortized through December 31, 2013.
	In March 2011 certain pension plans in GME were remeasured as part of our goodwill impairment testing, resulting in a decrease of $272 million in the pension liability and a pre-tax increase in the net actuarial gain component of Accumulated other comprehensive loss.
	Refer to Note 10 for additional information on our Goodwill impairment.
	Pension and OPEB Obligations and Plan Assets
	The following table summarizes the change in benefit obligations and related plan assets (dollars in millions):
		Year Ended December 31, 2013														Year Ended December 31, 2012
		Pension Benefits								Other Benefits						Pension Benefits						Other Benefits
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Change in benefit obligations
	Beginning benefit obligation	$	82,110			$	29,301			$	6,271		$	1,528		$	108,562		$	25,765		$	5,822		$	1,490
	Service cost	298				394				24			13			452			383			23			16
	Interest cost	2,837				1,010				217			57			4,055			1,110			234			63
	Plan participants' contributions	—				4				29			2			—			7			4			1
	Amendments	—				(4		)		—			(4		)	(32		)	139			—			(52		)
	Actuarial (gains) losses	(7,661		)		(1,009		)		(757		)	(210		)	8,432			2,774			622			13
	Benefits paid	(5,719		)		(1,683		)		(422		)	(53		)	(8,422		)	(1,551		)	(436		)	(55		)
	Foreign currency translation adjustments	—				(528		)		—			(98		)	—			682			—			30
	Business combinations	—				128				—			—			—			—			—			—
	Curtailments, settlements and other	(385		)		(85		)		(252		)	3			(30,937		)	(8		)	2			22
	Ending benefit obligation	71,480				27,528				5,110			1,238			82,110			29,301			6,271			1,528
	Change in plan assets
	Beginning fair value of plan assets	68,085				15,541				—			—			94,349			14,541			—			—
	Actual return on plan assets	2,107				988				—			—			10,332			1,344			—			—
Employer contributions	128				886				393			51			2,420			855			432			54
Plan participants' contributions	—				4				29			2			—			7			4			1
Benefits paid	(5,719		)		(1,683		)		(422		)	(53		)	(8,422		)	(1,551		)	(436		)	(55		)
Foreign currency translation adjustments	—				(692		)		—			—			—			389			—			—
Business combinations	—				26				—			—			—			—			—			—
Settlements	(435		)		(87		)		—			—			(30,629		)	(207		)	—			—
Other	—				3				—			—			35			163			—			—
Ending fair value of plan assets	64,166				14,986				—			—			68,085			15,541			—			—
Ending funded status	$	(7,314	)		$	(12,542	)		$	(5,110	)	$	(1,238	)	$	(14,025	)	$	(13,760	)	$	(6,271	)	$	(1,528	)
Amounts recorded in the consolidated balance sheets
Non-current assets	$	—			$	137			$	—		$	—		$	—		$	73		$	—		$	—
Current liabilities	(131		)		(379		)		(368		)	(83		)	(95		)	(343		)	(406		)	(84		)
Non-current liabilities	(7,183		)		(12,300		)		(4,742		)	(1,155		)	(13,930		)	(13,490		)	(5,865		)	(1,444		)
Net amount recorded	$	(7,314	)		$	(12,542	)		$	(5,110	)	$	(1,238	)	$	(14,025	)	$	(13,760	)	$	(6,271	)	$	(1,528	)
Amounts recorded in Accumulated other comprehensive loss
Net actuarial gain (loss)	$	4,747			$	(3,379	)		$	(542	)	$	47		$	(1,434	)	$	(4,786	)	$	(1,573	)	$	(188	)
Net prior service (cost) credit	38				(87		)		19			91			42			(111		)	135			118
Total recorded in Accumulated other comprehensive loss	$	4,785			$	(3,466	)		$	(523	)	$	138		$	(1,392	)	$	(4,897	)	$	(1,438	)	$	(70	)
The following table summarizes the total accumulated benefit obligations (ABO), the fair value of plan assets for defined benefit pension plans with ABO in excess of plan assets, and the projected benefit obligation (PBO) and fair value of plan assets for defined benefit pension plans with PBO in excess of plan assets (dollars in millions):
	December 31, 2013								December 31, 2012
	U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans
ABO	$	71,461			$	27,069			$	82,103		$	28,880
Plans with ABO in excess of plan assets
ABO	$	71,461			$	25,897			$	82,103		$	28,156
Fair value of plan assets	$	64,166			$	13,663			$	68,085		$	14,702
Plans with PBO in excess of plan assets
PBO	$	71,480			$	26,788			$	82,110		$	28,537
Fair value of plan assets	$	64,166			$	14,109			$	68,085		$	14,704
The following table summarizes the components of net periodic pension and OPEB expense along with the assumptions used to determine benefit obligations (dollars in millions):
	Year Ended December 31, 2013														Year Ended December 31, 2012												Year Ended December 31, 2011
	Pension Benefits								Other Benefits						Pension Benefits						Other Benefits						Pension Benefits						Other Benefits
	U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
Components of expense
Service cost	$	395			$	425			$	24		$	13		$	590		$	411		$	23		$	16		$	632		$	399		$	23		$	30
Interest cost	2,837				1,010				217			57			4,055			1,110			234			63			4,915			1,215			265			186
Expected return on plan assets	(3,562		)		(823		)		—			—			(5,029		)	(870		)	—			—			(6,692		)	(925		)	—			—
Amortization of prior service cost (credit)	(4		)		19				(116		)	(14		)	(1		)	1			(116		)	(12		)	(2		)	(2		)	(39		)	(9		)
Recognized net actuarial loss	6				208				85			6			2			35			52			6			—			—			6			—
Curtailments, settlements and other (gains) losses	(77		)		(6		)		(62		)	—			2,580			71			—			11			(23		)	(7		)	—			(749		)
Net periodic pension and OPEB expense (income)	$	(405	)		$	833			$	148		$	62		$	2,197		$	758		$	193		$	84		$	(1,170	)	$	680		$	255		$	(542	)
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.46		%		4.1		%		4.52		%	4.71		%	3.59		%	3.7		%	3.68		%	3.97		%	4.15		%	4.5		%	4.24		%	4.37		%
Rate of compensation increase(a)	N/A				2.9		%		N/A			4.21		%	N/A			2.77		%	4.5		%	4.21		%	4.5		%	3.11		%	4.5		%	4.2		%
Weighted-average assumptions used to determine net expense
Discount rate	3.59		%		3.69		%		3.69		%	3.97		%	4.06		%	4.45		%	4.24		%	4.31		%	4.96		%	5.16		%	5.05		%	5.01		%
Expected rate of return on plan assets	5.77		%		5.7		%		N/A			N/A			6.18		%	6.2		%	N/A			N/A			8		%	6.5		%	N/A			N/A
Rate of compensation increase(a)	N/A				2.77		%		4.5		%	4.21		%	4.5		%	3.15		%	4.5		%	4.21		%	3.96		%	3.25		%	4.5		%	4.42		%
_________
(a)	As a result of ceasing the accrual of additional benefits for salaried plan participants, the rate of compensation increase does not have a significant effect on our U.S. pension and OPEB plans.
U.S. pension plan service cost includes administrative expenses of $97 million, $138 million and $138 million in the years ended December 31, 2013, 2012 and 2011. Weighted-average assumptions used to determine net expense are determined at the beginning of the period and updated for remeasurements. Non-U.S. pension plan service cost includes administrative expenses of $31 million and $28 million in the years ended December 31, 2013 and 2012.
The following table summarizes estimated amounts to be amortized from Accumulated other comprehensive loss into net periodic benefit cost in the year ending December 31, 2014 based on December 31, 2013 plan measurements (dollars in millions):
	U.S. Pension Plans				Non-U.S. Pension Plans				U.S. Other Benefit Plans			Non-U.S. Other Benefit Plans
Amortization of prior service cost (credit)	$	(4	)		$	19			$	(2	)	$	(14	)
Amortization of net actuarial (gain) loss	(91		)		159				14			(6		)
	$	(95	)		$	178			$	12		$	(20	)
Assumptions
Investment Strategies and Long-Term Rate of Return
Detailed periodic studies conducted by outside actuaries and an internal asset management group are used to determine the long-term strategic mix among asset classes, risk mitigation strategies, and the expected long-term return on asset assumptions for the U.S. pension plans. The U.S. study includes a review of alternative asset allocation and risk mitigation strategies, anticipated future long-term performance and risk of the individual asset classes that comprise the plans' asset mix. Similar studies are performed for the significant non-U.S. pension plans with the assistance of outside actuaries and asset managers. While the studies incorporate data from recent plan performance and historical returns, the expected long-term return on plan asset assumptions are determined based on long-term, prospective rates of return.
The strategic asset mix and risk mitigation strategies for the plans are tailored specifically for each plan. Individual plans have distinct liabilities, liquidity needs, and regulatory requirements. Consequently, there are different investment policies set by individual plan fiduciaries. Although investment policies and risk mitigation strategies may differ among plans, each investment strategy is considered to be appropriate in the context of the specific factors affecting each plan.
In setting new strategic asset mixes, consideration is given to the likelihood that the selected mixes will effectively fund the projected pension plan liabilities, while aligning with the risk tolerance of the plans' fiduciaries. The strategic asset mixes for U.S. defined benefit pension plans are increasingly designed to satisfy the competing objectives of improving funded positions (market value of assets equal to or greater than the present value of the liabilities) and mitigating the possibility of a deterioration in funded status.
Derivatives may be used to provide cost effective solutions for rebalancing investment portfolios, increasing or decreasing exposure to various asset classes and for mitigating risks, primarily interest rate and currency risks. Equity and fixed income managers are permitted to utilize derivatives as efficient substitutes for traditional physical securities. Interest rate derivatives may be used to adjust portfolio duration to align with a plan's targeted investment policy. Alternative investment managers are permitted to employ leverage, including through the use of derivatives, which may alter economic exposure.
In December 2013 an investment policy study was completed for the U.S. pension plans. The study resulted in new target asset allocations being approved for the U.S. pension plans with resulting changes to the expected long-term rate of return on assets. The weighted-average long-term rate of return on assets increased from 5.8% at December 31, 2012 to 6.5% at December 31, 2013 due primarily to higher yields on fixed income securities. The expected long-term rate of return on plan assets used in determining pension expense for non-U.S. plans is determined in a similar manner to the U.S. plans.
Target Allocation Percentages
The following table summarizes the target allocations by asset category for U.S. and non-U.S. defined benefit pension plans:
	December 31, 2013						December 31, 2012
	U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
Asset Categories
Equity	19	%		28	%		19	%		30	%
Debt	58	%		49	%		60	%		53	%
Other(a)	23	%		23	%		21	%		17	%
Total	100	%		100	%		100	%		100	%
__________
(a)	Primarily includes private equity, real estate and absolute return strategies which mainly consist of hedge funds.
Assets and Fair Value Measurements
The following tables summarize the fair value of defined benefit pension plan assets by asset class (dollars in millions):
	Fair Value Measurements of U.S. Plan Assets at December 31, 2013														Fair Value Measurements of Non-U.S. Plan Assets at December 31, 2013												Total U.S. and Non-U.S. Plan Assets
	Level 1				Level 2				Level 3			Total			Level 1			Level 2			Level 3			Total
Assets
Cash equivalents and other short-term investments	$	—			$	411			$	—		$	411		$	—		$	156		$	—		$	156		$	567
Common and preferred stocks(a)	10,234				70				6			10,310			1,816			6			—			1,822			12,132
Government and agency debt securities(b)	—				14,971				—			14,971			—			3,418			—			3,418			18,389
Corporate debt securities(c)	—				20,409				58			20,467			—			2,410			12			2,422			22,889
Mortgage and asset-backed securities	—				238				72			310			—			65			2			67			377
Investment funds
Equity funds	72				190				44			306			128			1,930			—			2,058			2,364
Fixed income funds	27				8				113			148			—			927			12			939			1,087
Funds of hedge funds	—				—				4,285			4,285			—			—			733			733			5,018
Other investment funds	—				820				732			1,552			—			672			—			672			2,224
Private equity and debt investments(d)	—				—				6,335			6,335			—			—			430			430			6,765
Real estate investments(e)	390				4				4,127			4,521			13			12			1,405			1,430			5,951
Other investments	—				—				62			62			—			—			618			618			680
Derivatives
Interest rate contracts	5				46				—			51			1			1			—			2			53
Foreign exchange and other contracts	12				111				—			123			2			43			—			45			168
Total assets	10,740				37,278				15,834			63,852			1,960			9,640			3,212			14,812			78,664
Liabilities
Derivatives
Interest rate contracts	(22		)		(213		)		(6		)	(241		)	(12		)	—			—			(12		)	(253		)
Foreign exchange and other contracts	—				(98		)		—			(98		)	—			(56		)	—			(56		)	(154		)
Total liabilities	(22		)		(311		)		(6		)	(339		)	(12		)	(56		)	—			(68		)	(407		)
Net plan assets subject to leveling	$	10,718			$	36,967			$	15,828		63,513			$	1,948		$	9,584		$	3,212		14,744			78,257
Other plan assets and liabilities(g)												653												242			895
Net Plan Assets												$	64,166											$	14,986		$	79,152
	Fair Value Measurements of U.S. Plan Assets at December 31, 2012														Fair Value Measurements of Non-U.S. Plan Assets at December 31, 2012												Total U.S. and Non-U.S. Plan Assets
	Level 1				Level 2				Level 3			Total			Level 1			Level 2			Level 3			Total
Assets
Cash equivalents and other short-term investments	$	—			$	551			$	—		$	551		$	—		$	151		$	—		$	151		$	702
Common and preferred stocks(a)	9,663				26				19			9,708			2,227			—			—			2,227			11,935
Government and agency debt securities(b)	—				17,835				—			17,835			—			3,722			—			3,722			21,557
Corporate debt securities(c)	—				19,116				77			19,193			—			2,596			2			2,598			21,791
Mortgage and asset-backed securities	—				1,804				105			1,909			—			54			3			57			1,966
Investment funds
Equity funds	66				253				195			514			212			2,009			—			2,221			2,735
Fixed income funds	16				498				190			704			—			1,046			14			1,060			1,764
Funds of hedge funds	—				—				3,768			3,768			—			—			627			627			4,395
Other investment funds	—				837				806			1,643			—			35			—			35			1,678
Private equity and debt investments(d)	—				—				6,400			6,400			—			—			381			381			6,781
Real estate investments(e)	412				—				4,335			4,747			19			31			1,422			1,472			6,219
Other investments	—				—				63			63			—			—			665			665			728
Derivatives
Interest rate contracts	15				1,553				—			1,568			—			—			—			—			1,568
Foreign exchange and other contracts	6				124				1			131			2			40			—			42			173
Total assets	10,178				42,597				15,959			68,734			2,460			9,684			3,114			15,258			83,992
Liabilities
Mortgage and asset-backed securities(f)	—				(15		)		—			(15		)	—			—			—			—			(15		)
Derivatives
Interest rate contracts	(21		)		(977		)		(8		)	(1,006		)	(4		)	—			—			(4		)	(1,010		)
Foreign exchange and other contracts	(4		)		(123		)		(1		)	(128		)	(1		)	(36		)	—			(37		)	(165		)
Total liabilities	(25		)		(1,115		)		(9		)	(1,149		)	(5		)	(36		)	—			(41		)	(1,190		)
Net plan assets subject to leveling	$	10,153			$	41,482			$	15,950		67,585			$	2,455		$	9,648		$	3,114		15,217			82,802
Other plan assets and liabilities(g)												500												324			824
Net Plan Assets												$	68,085											$	15,541		$	83,626
__________
(a)	Includes GM common stock of $2 million and $1.4 billion in Level 1 of U.S. plan assets at December 31, 2013 and 2012.
(b)	Includes U.S. and sovereign government and agency issues. Excludes mortgage and asset-backed securities.
(c)	Includes bank debt obligations.
(d)	Includes private equity investment funds.
(e)	Includes investment funds and public real estate investment trusts.
(f)	Primarily investments sold short.
(g)	Cash held by the plans, net of amounts receivable/payable for unsettled security transactions and payables for investment manager fees, custody fees and other expenses.
The following tables summarize the activity for U.S. plan assets measured at fair value using Level 3 inputs (dollars in millions):
	Balance at January 1, 2013				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Balance at December 31, 2013			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
					Gains (Losses)				Settlements, Net									31-Dec-13
Assets
Common and preferred stocks	$	19			$	3			$	(16	)	$	—		$	6		$	1
Corporate debt securities	77				5				(24		)	—			58			(2		)
Mortgage and asset-backed securities	105				1				(34		)	—			72			(1		)
Investment funds
Equity funds	195				(3		)		(148		)	—			44			—
Fixed income funds	190				17				(94		)	—			113			11
Funds of hedge funds	3,768				498				19			—			4,285			497
Other investment funds	806				40				(114		)	—			732			29
Private equity and debt investments	6,400				926				(991		)	—			6,335			436
Real estate investments	4,335				458				(666		)	—			4,127			190
Other investments	63				(2		)		1			—			62			(2		)
Total assets	15,958				1,943				(2,067		)	—			15,834			1,159
Derivatives, net
Interest rate contracts	(8		)		2				—			—			(6		)	1
Total net assets	$	15,950			$	1,945			$	(2,067	)	$	—		$	15,828		$	1,160
	Balance at January 1, 2012				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Balance at December 31, 2012			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
					Gains (Losses)				Settlements, Net									31-Dec-12
Assets
Common and preferred stocks	$	46			$	1			$	(25	)	$	(3	)	$	19		$	3
Government and agency debt securities	3				(1		)		(2		)	—			—			—
Corporate debt securities	352				1				(258		)	(18		)	77			(35		)
Mortgage and asset-backed securities	197				34				(120		)	(6		)	105			24
Group annuity contracts	3,209				77				(3,286		)	—			—			—
Investment funds
Equity funds	521				51				(414		)	37			195			18
Fixed income funds	1,210				47				(1,067		)	—			190			(3		)
Funds of hedge funds	5,918				310				(2,460		)	—			3,768			239
Other investment funds	2,270				55				(1,531		)	12			806			(2		)
Private equity and debt investments	8,444				1,022				(3,038		)	(28		)	6,400			154
Real estate investments	5,092				198				(955		)	—			4,335			(80		)
Other investments	—				—				63			—			63			—
Total assets	27,262				1,795				(13,093		)	(6		)	15,958			318
Derivatives, net
Interest rate contracts	7				3				(14		)	(4		)	(8		)	(1		)
Foreign exchange and other contracts	(6		)		1				5			—			—			—
Total net assets	$	27,263			$	1,799			$	(13,102	)	$	(10	)	$	15,950		$	317
The following tables summarize the activity for non-U.S. plan assets measured at fair value using Level 3 inputs (dollars in millions):
	Balance at January 1, 2013				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Effect of Foreign Currency			Balance at December 31, 2013			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
					Gains (Losses)				Settlements, Net												31-Dec-13
Assets
Corporate debt securities	$	2			$	1			$	8		$	1		$	—		$	12		$	1
Mortgage and asset-backed securities	3				—				(1		)	—			—			2			—
Investment funds
Fixed income funds	14				(1		)		(1		)	—			—			12			—
Funds of hedge funds	627				111				28			—			(33		)	733			112
Private equity and debt investments	381				73				3			—			(27		)	430			53
Real estate investments	1,422				103				(57		)	—			(63		)	1,405			122
Other investments	665				(10		)		(43		)	—			6			618			4
Total assets	$	3,114			$	277			$	(63	)	$	1		$	(117	)	$	3,212		$	292
	Balance at January 1, 2012				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Effect of Foreign Currency			Balance at December 31, 2012			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
					Gains (Losses)				Settlements, Net												31-Dec-12
Assets
Government and agency debt securities	$	1			$	—			$	(1	)	$	—		$	—		$	—		$	—
Corporate debt securities	4				2				(4		)	—			—			2			—
Mortgage and asset-backed securities	4				—				(4		)	3			—			3			—
Investment funds
Equity funds	146				(24		)		(124		)	—			2			—			—
Fixed income funds	20				—				(6		)	—			—			14			—
Funds of hedge funds	585				25				—			—			17			627			26
Other investment funds	247				17				(269		)	—			5			—			—
Private equity and debt investments	298				46				29			—			8			381			24
Real estate investments	1,345				123				(82		)	—			36			1,422			119
Other investments	428				16				203			—			18			665			10
Total assets	$	3,078			$	205			$	(258	)	$	3		$	86		$	3,114		$	179
Investment Fund Strategies
Equity funds include funds that invest in U.S. common and preferred stocks as well as similar equity securities issued by companies incorporated, listed or domiciled in developed and/or emerging markets countries.
Fixed income funds include investments in high quality and high yield funds as well as in credit arbitrage funds. High quality fixed income funds invest in government securities, investment-grade corporate bonds, mortgages and asset-backed securities. High yield fixed income funds invest in high yield fixed income securities issued by corporations which are rated below investment grade, are unrated but are believed by the investment manager to have similar risk characteristics or are rated investment grade or higher but are priced at yields comparable to securities rated below investment grade and believed to have similar risk characteristics. Credit arbitrage funds invest in a variety of credit and credit-related instruments that allow fund managers to profit from mispricing of these credit instruments. Certain derivatives may be used for hedging purposes by some fixed income fund managers to limit exposure to various risk factors.
Funds of hedge funds represent funds that invest in a portfolio of hedge funds. Fund managers typically seek to achieve their objectives by allocating capital across a broad array of funds and/or investment managers.
Other investment funds primarily represent multi-strategy funds. These funds invest in broadly diversified portfolios of equity, fixed income and derivative instruments. Certain funds may also employ multiple alternative investment strategies, in combination, such as global macro, event-driven (which seeks to profit from opportunities created by significant transactional events such as spin-offs, mergers and acquisitions, bankruptcy reorganizations, recapitalizations and share buybacks) and relative value (which seeks to take advantage of pricing discrepancies between instruments including equities, debt, options and futures).
Private equity and debt investments principally consists of investments in private equity and debt funds. These investments provide exposure to and benefit from long-term equity investments in private companies, including leveraged buy-outs, venture capital and distressed debt strategies.
Real estate investments include funds that invest in entities which are principally engaged in the ownership, acquisition, development, financing, sale and/or management of income-producing real estate properties, both commercial and residential. These funds typically seek long-term growth of capital and current income that is above average relative to public equity funds.
Significant Concentrations of Risk
The assets of the pension plans include certain private investment funds, private equity and debt securities, real estate investments and derivative instruments. Investment managers may be unable to quickly sell or redeem some or all of these investments at an amount close or equal to fair value in order to meet a plan's liquidity requirements or to respond to specific events such as deterioration in the creditworthiness of any particular issuer or counterparty.
Illiquid investments held by the plans are generally long-term investments that complement the long-term nature of pension obligations and are not used to fund benefit payments when currently due. Plan management monitors liquidity risk on an ongoing basis and has procedures in place that are designed to maintain flexibility in addressing plan-specific, broader industry and market liquidity events.
The pension plans may invest in financial instruments denominated in foreign currencies and may be exposed to risks that the foreign currency exchange rates might change in a manner that has an adverse effect on the value of the foreign currency denominated assets or liabilities. Forward currency contracts may be used to manage and mitigate foreign currency risk.
The pension plans may invest in fixed income securities for which any change in the relevant interest rates for particular securities might result in an investment manager being unable to secure similar returns upon the maturity or the sale of securities. In addition, changes to prevailing interest rates or changes in expectations of future interest rates might result in an increase or decrease in the fair value of the securities held. Interest rate swaps and other financial derivative instruments may be used to manage interest rate risk.
Counterparty credit risk is the risk that a counterparty to a financial instrument will default on its commitment. Counterparty risk is primarily related to over-the-counter derivative instruments used to manage risk exposures related to interest rates on long-term debt securities and foreign currency exchange rate fluctuations. The risk of default can be influenced by various factors including macro-economic conditions, market liquidity, fiscal and monetary policies and counterparty-specific characteristics and activities. Certain agreements with counterparties employ set-off, collateral support arrangements and other risk mitigating procedures designed to reduce the net exposure to credit risk in the event of counterparty default. Credit policies and processes are in place to manage concentrations of counterparty risk by seeking to undertake transactions with large well-capitalized counterparties and by monitoring the creditworthiness of these counterparties. The majority of derivatives held by the plans at December 31, 2013 were fully collateralized and therefore, the related counterparty credit risk was significantly reduced.
Pension Funding Requirements
We are subject to a variety of U.S. federal rules and regulations, including the Employee Retirement Income Security Act of 1974, as amended and the Pension Protection Act of 2006, which govern the manner in which we fund and administer our pensions for our retired employees and their spouses. In 2012 the U.S. government enacted the Moving Ahead for Progress in the 21st Century Act which allows plan sponsors funding relief for pension plans through the application of higher funding interest rates. As a result, under current economic conditions, we expect no mandatory contributions to our U.S. qualified pension plans for at least five years. The new law does not impact our reported funded status. We have no funding requirements for our U.S. qualified plans in 2014.
We also maintain pension plans for employees in a number of countries outside the U.S. which are subject to local laws and regulations.
Benefit Payments
The following table summarizes net benefit payments expected to be paid in the future, which include assumptions related to estimated future employee service (dollars in millions):
	Pension Benefits(a)								Other Benefits
	U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans
2014	$	5,780			$	1,609			$	376		$	77
2015	$	5,687			$	1,597			$	364		$	65
2016	$	5,475			$	1,688			$	352		$	65
2017	$	5,368			$	1,711			$	341		$	65
2018	$	5,210			$	1,581			$	332		$	66
2019 - 2023	$	24,019			$	7,858			$	1,576		$	357
__________
(a)	Benefits for most U.S. pension plans and certain non-U.S. pension plans are paid out of plan assets rather than our Cash and cash equivalents.

Derivative_Financial_Instrumen

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments [Text Block]	'
	Derivative Financial Instruments
	Automotive
	At December 31, 2013 and 2012 our derivative instruments consisted primarily of options and forward contracts, none of which were designated as hedging relationships. We had derivative instruments in asset positions with notional amounts of $9.3 billion and $9.1 billion and liability positions with notional amounts of $427 million and $1.6 billion at December 31, 2013 and 2012. The fair value of these derivative instruments was insignificant.
	Automotive Financing - GM Financial
	GM Financial had interest rate swaps and caps in asset positions with notional amounts of $3.8 billion and $775 million and liability positions with notional amounts of $5.5 billion and $775 million at December 31, 2013 and 2012. As a result of the acquisition of certain Ally Financial international operations, GM Financial had foreign currency swaps with notional amounts of $1.7 billion and $2.1 billion in asset and liability positions at December 31, 2013. The fair value of these derivative financial instruments was insignificant.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies [Text Block]	'
	Commitments and Contingencies
	The following tables summarize information related to commitments and contingencies (dollars in millions):
		December 31, 2013						December 31, 2012
		Liability Recorded			Maximum Liability(a)			Liability Recorded			Maximum Liability(a)
	Guarantees
	Third-party commercial loans and other obligations(b)	$	51		$	15,616		$	168		$	22,496
	Other product-related claims	$	54		$	1,317		$	51		$	1,040
	__________
	(a)	Calculated as future undiscounted payments.
	(b)	Includes liabilities recorded of $10 million and $15 million and maximum liabilities of $15.3 billion and $22.1 billion related to Ally Financial repurchase obligations at December 31, 2013 and 2012.
		Liability Recorded
		December 31, 2013			December 31, 2012
	Other litigation-related liability and tax administrative matters(a)	$	1,227		$	1,728
	Product liability	$	690		$	601
	Credit card programs(b)
	Redemption liability(c)	$	183		$	209
	Deferred revenue(d)	$	295		$	355
	Environmental liability	$	154		$	166
	__________
	(a)	Primarily indirect tax-related litigation as well as various non-U.S. labor related matters.
	(b)	At December 31, 2013 and 2012 qualified cardholders had rebates available, net of deferred program revenue, of approximately $2.6 billion and $2.9 billion.
	(c)	Recorded in Accrued liabilities.
	(d)	Recorded in Other liabilities and deferred income taxes.
	Guarantees
	We provide payment guarantees on commercial loans outstanding with third parties, such as dealers or rental car companies. These guarantees either expire in 2018 or are ongoing. We determined the fair value ascribed to the guarantees at inception and subsequent to inception to be insignificant based on the credit worthiness of the third parties.
	We have agreements with third parties that guarantee the fulfillment of certain suppliers' commitments and other obligations. These guarantees expire in 2014 through 2016 or are ongoing, or upon the occurrence of specific events.
	In some instances certain assets of the party whose debt or performance we have guaranteed may offset, to some degree, the cost of the guarantee. The offset of certain of our payables to guaranteed parties may also offset certain guarantees, if triggered. If vehicles are required to be repurchased under vehicle repurchase obligations, the total exposure would be reduced to the extent vehicles are able to be resold to another dealer.
	In connection with certain divestitures of assets or operating businesses, we have entered into agreements indemnifying certain buyers and other parties with respect to environmental conditions and other closure costs pertaining to real property we owned. We periodically enter into agreements that incorporate indemnification provisions in the normal course of business. It is not possible to estimate our maximum exposure under these indemnifications or guarantees due to the conditional nature of these obligations. Immaterial amounts have been recorded for such obligations as the majority of them are not probable or estimable at this time and the fair value of the guarantees at issuance was insignificant.
	In addition to the guarantees and indemnifying agreements previously discussed, we indemnify dealers for certain product liability related claims as subsequently discussed.
	With respect to other product-related claims involving products manufactured by certain joint ventures, we believe that costs incurred are adequately covered by recorded accruals. These guarantees terminate in years ranging from 2020 to 2027.
	Other Litigation-Related Liability and Tax Administrative Matters
	Various legal actions, governmental investigations, claims and proceedings are pending against us including matters arising out of alleged product defects; employment-related matters; governmental regulations relating to safety, emissions and fuel economy; product warranties; financial services; dealer, supplier and other contractual relationships; tax-related matters not recorded pursuant to ASC 740, "Income Taxes" (indirect tax-related matters) and environmental matters.
	With regard to the litigation matters discussed in the previous paragraph, reserves have been established for matters in which we believe that losses are probable and can be reasonably estimated, the majority of which are associated with indirect tax-related matters as well as non-U.S. labor-related matters. Indirect tax-related matters are being litigated globally pertaining to value added taxes, customs, duties, sales, property taxes and other non-income tax related tax exposures. The various non-U.S. labor-related matters include claims from current and former employees related to alleged unpaid wage, benefit, severance and other compensation matters. Certain South American administrative proceedings are indirect tax-related and may require that we deposit funds in escrow. Escrow deposits may range from $500 million to $800 million. Some of the matters may involve compensatory, punitive or other treble damage claims, environmental remediation programs or sanctions that, if granted, could require us to pay damages or make other expenditures in amounts that could not be reasonably estimated at December 31, 2013. We believe that appropriate accruals have been established for such matters based on information currently available. Reserves for litigation losses are recorded in Accrued liabilities and Other liabilities and deferred income taxes. Litigation is inherently unpredictable however; and unfavorable resolutions could occur. Accordingly it is possible that an adverse outcome from such proceedings could exceed the amounts accrued in an amount that could be material to our financial condition, results of operations and cash flows in any particular reporting period.
	GM Korea Wage Litigation
	Commencing on or about September 29, 2010 current and former hourly employees of GM Korea filed eight separate group actions in the Incheon District Court in Incheon, Korea. The cases, which in aggregate involve more than 10,000 employees, allege that GM Korea failed to include bonuses and certain allowances in its calculation of Ordinary Wages due under the Presidential Decree of the Korean Labor Standards Act. In November 2012 the Seoul High Court (an intermediate level appellate court) issued a decision affirming a decision of the Incheon District Court in a case involving five GM Korea employees which was contrary to GM Korea's position in all of these cases. GM Korea appealed to the Supreme Court of the Republic of Korea (Supreme Court) and initiated a constitutional challenge to the adverse interpretation of the relevant statute. At September 30, 2013 we had an accrual of 843 billion South Korean Won (equivalent to $784 million) in connection with these cases. In December 2013, the Supreme Court rendered a decision in a case involving another company not affiliated with us which addressed many of the issues presented in the cases pending against GM Korea and resolved many of them in a manner which we believe is favorable to GM Korea. In particular, while the Supreme Court held that fixed bonuses should be included in the calculation of Ordinary Wages, it also held that claims for retroactive application of this rule would be barred under certain circumstances. We believe the Supreme Court’s reasoning is applicable to GM Korea, even though GM Korea’s case remains pending before the Supreme Court. Accordingly, we have eliminated the accrual associated with these cases. In the year ended December 31, 2013 we recorded a net reduction of our accrual of 746 billion South Korean Won (equivalent to $711 million) to Automotive cost of sales (77% of which is reflected in our Net income attributable to stockholders based on our ownership interest in GM Korea). We estimate our reasonably possible loss, as defined by ASC 450, “Contingencies,” to be 632 billion South Korean Won (equivalent to $599 million) at December 31, 2013. We are also party to litigation with current and former salaried employees over allegations relating to Ordinary Wages regulation. Although the issues differ due to differences between hourly and salaried benefit design, we believe the latest decision of the Supreme Court also impacts this litigation. At December 31, 2013 we have identified a reasonably possible loss in excess of the amount of our accrual of 165 billion South Korean Won (equivalent to $156 million). Both the scope of claims asserted and GM Korea's assessment of any or all of the individual claim elements may change if new information becomes available.
	GMCL Dealers' Claim
	On February 12, 2010 a claim was filed in the Ontario Superior Court of Justice against GMCL on behalf of a purported class of over 200 former GMCL dealers (the Plaintiff Dealers) which had entered into wind-down agreements with GMCL. In May 2009 in the context of the global restructuring of the business and the possibility that GMCL might be required to initiate insolvency proceedings, GMCL offered the Plaintiff Dealers the wind-down agreements to assist with their exit from the GMCL dealer network and to facilitate winding down their operations in an orderly fashion by December 31, 2009 or such other date as GMCL approved but no later than on October 31, 2010. The Plaintiff Dealers allege that the Dealer Sales and Service Agreements were wrongly terminated by GMCL and that GMCL failed to comply with certain disclosure obligations, breached its statutory duty of fair dealing and unlawfully interfered with the Plaintiff Dealers' statutory right to associate in an attempt to coerce the Plaintiff Dealers into accepting the wind-down agreements. The Plaintiff Dealers seek damages and assert that the wind-down agreements are rescindable. The Plaintiff Dealers' initial pleading makes reference to a claim “not exceeding” Canadian Dollar $750 million, without explanation of any specific measure of damages. On March 1, 2011 the court approved certification of a class for the purpose of deciding a number of specifically defined issues including: (1) whether GMCL breached its obligation of "good faith" in offering the wind-down agreements; (2) whether GMCL interfered with the Plaintiff Dealers' rights of free association; (3) whether GMCL was obligated to provide a disclosure statement and/or disclose more specific information regarding its restructuring plans in connection with proffering the wind-down agreements; and (4) assuming liability, whether the Plaintiff Dealers can recover damages in the aggregate (as opposed to proving individual damages). A number of former dealers have opted out of participation in the litigation, leaving 181 dealers in the certified class. Trial of the class issues is scheduled to occur in the third quarter of 2014. The current prospects for liability are uncertain, but because liability is not deemed probable we have no accrual relating to this litigation. We cannot estimate the range of reasonably possible loss in the event of liability as the case presents a variety of different legal theories, none of which GMCL believes are valid.
	UAW Claim
	On April 6, 2010 the UAW filed suit against us in the U.S. District Court for the Eastern District of Michigan claiming that we breached an obligation to contribute $450 million to the UAW Retiree Medical Benefits Trust (New VEBA). The UAW alleges that we were contractually required to make this contribution. On December 10, 2013 the court granted our motion for summary judgment and dismissed the claims asserted by the UAW, holding that the relevant agreement is unambiguous and does not require the payment sought. The UAW has appealed. At this juncture, we believe the prospects for liability on the claims asserted in this matter are remote.
	Nova Scotia Claims Litigation
	We were a participating party-in-interest in proceedings pending in the U.S. Bankruptcy Court for the Southern District of New York to adjudicate claims in the Old GM bankruptcy arising from certain securities issued by General Motors Nova Scotia Finance Company (Nova Scotia Finance), an Old GM subsidiary which we did not acquire in 2009 (Nova Scotia Claims Litigation). Although the proceedings involved no claims against us, they presented issues which, depending upon their resolution, could have resulted in future claims against GMCL. In December 2013, pursuant to the agreement, GMCL paid $50 million to, or as directed by, the Trustee of Nova Scotia Finance and we (including our subsidiaries and affiliates) were released from all claims relating to Nova Scotia Finance, the Nova Scotia Claims Litigation and the transactions at issue in the litigation.
	Product Liability
	With respect to product liability claims involving our and Old GM's products, we believe that any judgment against us for actual damages will be adequately covered by our recorded accruals and, where applicable, excess liability insurance coverage. Although punitive damages are claimed in some of these lawsuits and such claims are inherently unpredictable, accruals incorporate historic experience with these types of claims. Liabilities have been recorded in Accrued liabilities and Other liabilities and deferred income taxes for the expected cost of all known product liability claims plus an estimate of the expected cost for product liability claims that have already been incurred and are expected to be filed in the future for which we are self-insured.
	We indemnify dealers for certain product liability related claims including products sold by Old GM. We monitor actual claims experience and make periodic adjustments to our estimates. Based on both management's judgment concerning the projected number and value of both dealer indemnification obligations and product liability claims, we have applied actuarial methodologies and estimated the liability. We expect our product liability reserve to rise in future periods as new claims arise from incidents subsequent to July 9, 2009.
	Credit Card Programs
	Credit card programs offer rebates that can be applied primarily against the purchase or lease of our vehicles.
	Environmental Liability
	Automotive operations, like operations of other companies engaged in similar businesses, are subject to a wide range of environmental protection laws, including laws regulating air emissions, water discharges, waste management and environmental remediation. Liabilities have been recorded primarily in Other liabilities and deferred income taxes for the expected costs to be paid over the periods of remediation for the applicable sites, which typically range from five to 30 years.
	The final outcome of environmental matters cannot be predicted with certainty at this time. Subsequent adjustments to initial estimates are recorded as necessary based upon additional information obtained. In future periods new laws or regulations, advances in remediation technologies and additional information about the ultimate remediation methodology to be used could significantly change our estimates. It is possible that the resolution of one or more environmental matters could exceed the amounts accrued in an amount that could be material to our financial condition, results of operations and cash flows. At December 31, 2013 we estimate the remediation losses could range from $120 million to $230 million.
	Other Matters
	Brazil Excise Tax Incentive
	In October 2012 the Brazilian government issued a decree which increased an excise tax rate by 30 percentage points, but also provided an offsetting tax incentive that requires participating companies to meet certain criteria, such as local investment and fuel efficiency standards. Participating companies that fail to meet the required criteria are subject to clawback provisions and fines. At December 31, 2013 we believe it is reasonably assured that the program requirements will be met based on the current business model and available technologies.
	GME Planned Spending Guarantee
	As part of our Opel/Vauxhall restructuring plan agreed to with European labor representatives we have committed to achieving specified milestones associated with planned spending from 2011 to 2014 on certain product programs. If we fail to accomplish the requirements set out under the agreement we will be required to pay certain amounts up to Euro 265 million for each of those years, and/or interest on those amounts, to our employees. Certain inventory with a carrying amount of $200 million and $186 million at December 31, 2013 and 2012 was pledged as collateral under the agreement. Through December 31, 2013 spending was sufficient to meet the current requirements under the agreement and the specified milestones have been accomplished. Management has the intent and believes it has the ability to meet the future requirements under the agreement.
	India Tavera Emissions Compliance
	We have identified an emissions compliance issue with the Tavera produced in India. We have self-reported this issue to local government authorities and will cooperate with any review they may conduct. It is too early to determine the impact this issue will have on us or our Indian operations.
	Asset Retirement Obligations
	Asset retirement obligations relate to legal obligations associated with retirement of tangible long-lived assets that result from acquisition, construction, development or normal operation of a long-lived asset. An analysis is performed of such obligations associated with all real property owned or leased, including facilities, warehouses and offices. Estimates of conditional asset retirement obligations relate, in the case of owned properties, to costs estimated to be necessary for the legally required removal or remediation of various regulated materials, primarily asbestos. Asbestos abatement was estimated using site-specific surveys where available and a per square foot estimate where surveys were unavailable. For leased properties such obligations relate to the estimated cost of contractually required property restoration. At December 31, 2013 and 2012 accruals for asset retirement obligations were $159 million and $116 million.
	Noncancelable Operating Leases
	The following table summarizes our minimum commitments under noncancelable operating leases having initial terms in excess of one year, primarily for property (dollars in millions):
		2014			2015			2016			2017			2018			Thereafter
	Minimum commitments(a)	$	363		$	290		$	225		$	156		$	132		$	499
	Sublease income	(52		)	(58		)	(60		)	(59		)	(56		)	(293		)
Net minimum commitments	$	311		$	232		$	165		$	97		$	76		$	206
__________
(a)	Certain of the leases contain escalation clauses and renewal or purchase options.
Rental expense under operating leases was $477 million, $474 million and $556 million in the years ended December 31, 2013, 2012 and 2011.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes [Text Block]	'
	Income Taxes
	The following table summarizes income (loss) before income taxes and equity income and gain on investments (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	U.S. income (loss)	$	4,880		$	(19,063	)	$	2,883
	Non-U.S. income (loss)	768			(11,194		)	3,102
	Income (loss) before income taxes and equity income and gain on investments	$	5,648		$	(30,257	)	$	5,985
	Income Tax Expense (Benefit)
	The following table summarizes Income tax expense (benefit) (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Current income tax expense (benefit)
	U.S. federal	$	(34	)	$	6		$	(134	)
	U.S. state and local	88			78			58
	Non-U.S.	512			646			275
	Total current income tax expense	566			730			199
	Deferred income tax expense (benefit)
	U.S. federal	1,049			(28,965		)	8
	U.S. state and local	137			(3,415		)	(28		)
	Non-U.S.	375			(3,181		)	(289		)
	Total deferred income tax expense (benefit)	1,561			(35,561		)	(309		)
	Total income tax expense (benefit)	$	2,127		$	(34,831	)	$	(110	)
	Provisions are made for estimated U.S. and non-U.S. income taxes, less available tax credits and deductions, which may be incurred on the remittance of our basis differences in investments in foreign subsidiaries and corporate joint ventures not deemed to be indefinitely reinvested. Taxes have not been provided on basis differences in investments primarily as a result of earnings in foreign subsidiaries and corporate joint ventures which are deemed indefinitely reinvested of $2.6 billion and $1.4 billion at December 31, 2013 and 2012. Additional basis differences in investments in nonconsolidated China JVs exist of $4.1 billion at December 31, 2013 and 2012 primarily related to fresh-start reporting. Quantification of the deferred tax liability, if any, associated with indefinitely reinvested basis differences is not practicable.
	The following table summarizes a reconciliation of Income tax expense (benefit) compared with the amounts at the U.S. federal statutory rate (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Income tax expense (benefit) at U.S. federal statutory income tax rate	$	1,977		$	(10,590	)	$	2,094
	State and local tax expense	145			254			215
	Non-U.S. income taxed at other than 35%	(168		)	908			(172		)
	Foreign tax credit election change	—			(1,075		)	—
	U.S. tax on Non-U.S. income	543			713			(122		)
	Change in valuation allowance	182			(33,917		)	(2,386		)
	Change in tax laws	146			67			(33		)
	Research incentives	(490		)	(68		)	(45		)
	Gain on sale of New Delphi equity interests	—			—			599
	Goodwill impairment	124			8,705			377
	Settlements of prior year tax matters	(473		)	—			(56		)
	VEBA contribution	—			—			(476		)
	Foreign currency remeasurement	(21		)	(36		)	59
	Pension contribution	—			—			(127		)
	U.S. salaried pension plan settlement	—			541			—
	Other adjustments	162			(333		)	(37		)
	Total income tax expense (benefit)	$	2,127		$	(34,831	)	$	(110	)
	Deferred Income Tax Assets and Liabilities
	Deferred income tax assets and liabilities at December 31, 2013 and 2012 reflect the effect of temporary differences between amounts of assets, liabilities and equity for financial reporting purposes and the bases of such assets, liabilities and equity as measured by tax laws, as well as tax loss and tax credit carryforwards. The following table summarizes the components of temporary differences and carryforwards that give rise to deferred tax assets and liabilities (dollars in millions):
		December 31, 2013			December 31, 2012
	Deferred tax assets
	Postretirement benefits other than pensions	$	2,902		$	3,494
	Pension and other employee benefit plans	5,469			8,536
	Warranties, dealer and customer allowances, claims and discounts	4,282			4,277
	Property, plants and equipment	2,464			2,225
	Capitalized research expenditures	7,179			6,106
	Operating loss and tax credit carryforwards(a)	19,342			20,220
	Miscellaneous	1,663			3,443
	Total deferred tax assets before valuation allowances	43,301			48,301
	Less: valuation allowances	(10,823		)	(10,991		)
	Total deferred tax assets	32,478			37,310
	Deferred tax liabilities
	Intangible assets	397			724
	Net deferred tax assets	$	32,081		$	36,586
	_________
	(a)	Includes operating loss and tax credit carryforwards of $16.3 billion expiring through 2033 and $3.0 billion that may be carried forward indefinitely at December 31, 2013.
	At December 31, 2013 we retained valuation allowances of $10.8 billion against deferred tax assets primarily in GME and South Korea business units with losses and in the U.S. and Canada related primarily to capital loss tax attributes and state operating loss carryforwards.
At December 31, 2012 as a result of sustained profitability in the U.S. and Canada evidenced by three years of earnings and the completion of our near- and medium-term business plans in the three months ended December 31, 2012 that forecast continuing profitability, we determined it was more likely than not future earnings will be sufficient to realize deferred tax assets in these two jurisdictions. Accordingly we reversed most of the U.S. and Canadian valuation allowances resulting in non-cash income tax benefits of $33.2 billion and $3.1 billion.
At December 31, 2011 as a result of sustained profitability in Australia, we released the valuation allowance against deferred tax assets. The reduction in the valuation allowance resulted in a non-cash income tax benefit of $502 million. In Australia we have net operating loss carryforwards which are subject to meeting a "Same Business Test" requirement that we assess on a quarterly basis. At December 31, 2013 as a result of our plans to cease vehicle and engine manufacturing at Holden, we determined that it was more likely than not Holden would not realize a portion of the deferred tax assets and recorded a valuation allowance in the amount of $133 million.
Uncertain Tax Positions
The following table summarizes activity of the total amounts of unrecognized tax benefits (dollars in millions):
	Years Ended December 31,
	2013			2012			2011
Beginning balance	$	2,745		$	2,370		$	5,169
Additions to current year tax positions	251			112			129
Additions to prior years' tax positions	276			512			562
Reductions to prior years' tax positions	(535		)	(141		)	(1,002		)
Reductions in tax positions due to lapse of statutory limitations	(73		)	(34		)	(64		)
Settlements	(132		)	(112		)	(2,399		)
Other	(2		)	38			(25		)
Ending balance	$	2,530		$	2,745		$	2,370
At December 31, 2013 and 2012 there are $1.5 billion and $1.2 billion of unrecognized tax benefits that if recognized would favorably affect our effective tax rate in the future. In the years ended December 31, 2013, 2012 and 2011 we recorded income tax related interest expense (benefit) and penalties of $(25) million, $44 million and $(145) million. The interest and penalty benefit in the year ended December 31, 2011 was due primarily to remeasurements, settlements and statute expirations. At December 31, 2013 and 2012 we had liabilities of $286 million and $222 million for income tax related interest and penalties.
In November 2013 we remeasured a previously disclosed uncertain tax position and recorded a $473 million tax benefit that increased net operating loss carryforwards, reducing future taxable income.
In the year ended December 31, 2011 certain issues were resolved relating to uncertain tax positions in jurisdictions which had full valuation allowances. The resolution of these matters resulted in a $2.7 billion reduction to gross uncertain positions. No tax benefit was recognized with respect to these reductions because the entities were in full valuation allowance jurisdictions or the amounts were reserved in a prior period.
At December 31, 2013 it is not possible to reasonably estimate the expected change to the total amount of unrecognized tax benefits in the next twelve months.
Other Matters
Income tax returns are filed in multiple jurisdictions and are subject to examination by taxing authorities throughout the world. We have open tax years from 2005 to 2013 with various significant tax jurisdictions. These open years contain matters that could be subject to differing interpretations of applicable tax laws and regulations as they relate to the amount, character, timing or inclusion of revenue and expenses or the sustainability of income tax credits for a given audit cycle. Given the global nature of our operations there is a risk that transfer pricing disputes may arise.
We have net operating loss carryforwards in Germany through November 30, 2009 that, as a result of reorganizations that took place in 2008 and 2009, were not recorded as deferred tax assets. Depending on the outcome of European court decisions these loss carryforwards may be available to reduce future taxable income in Germany.
In June 2011 we settled a Brazilian income tax matter for $241 million that was reserved and disclosed in a prior period.
In the U.S. we have continuing responsibility for Old GM's open tax years. Old GM was liquidated on December 15, 2011. The Internal Revenue Service has audited the returns through the liquidation date and, in January 2014, the audit of these returns was closed. The reduction to the amount of unrecognized tax benefits is not expected to be significant. In January 2013 the U.S. Congress enacted federal income tax legislation including an extension of the research credit for tax years 2012 and 2013. As a result, in the year ended December 31, 2013 we recorded an income tax benefit related to the 2012 research credit of approximately $200 million.

Restructuring_And_Other_Initia

Restructuring And Other Initiatives	12 Months Ended
	Dec. 31, 2013
Restructuring and Related Activities [Abstract]	'
Restructuring and Other Initiatives [Text Block]	'
	Restructuring and Other Initiatives
	We have previously executed various restructuring and other initiatives and we plan to execute additional initiatives in the future, if necessary, in order to align manufacturing capacity and other costs with prevailing global automotive production and to improve the utilization of remaining facilities. To the extent these programs involve voluntary separations, no liabilities are generally recorded until offers to employees are accepted. If employees are involuntarily terminated, a liability is generally recorded at the communication date. Related charges are recorded in Automotive cost of sales and Automotive selling, general and administrative expense.
	The following table summarizes the reserves related to restructuring and other initiatives and charges by segment, including postemployment benefit reserves and charges (dollars in millions):
		GMNA			GME			GMIO			GMSA			Total
	Balance at January 1, 2011(a)	$	1,135		$	664		$	3		$	—		$	1,802
	Additions, interest accretion and other	104			449			—			81			634
	Payments	(366		)	(395		)	(2		)	(68		)	(831		)
	Revisions to estimates	19			(9		)	—			—			10
	Effect of foreign currency	(8		)	(22		)	—			(1		)	(31		)
	Balance at December 31, 2011(a)	884			687			1			12			1,584
	Additions, interest accretion and other	140			254			84			92			570
	Payments	(304		)	(344		)	(46		)	(55		)	(749		)
	Revisions to estimates	(78		)	(17		)	(1		)	(11		)	(107		)
	Effect of foreign currency	11			10			1			—			22
	Balance at December 31, 2012(a)	653			590			39			38			1,320
	Additions, interest accretion and other	58			202			404			50			714
	Payments	(182		)	(299		)	(111		)	(68		)	(660		)
	Revisions to estimates	(16		)	(9		)	(3		)	(1		)	(29		)
	Effect of foreign currency	(16		)	19			4			(3		)	4
	Balance at December 31, 2013(a)	$	497		$	503		$	333		$	16		$	1,349
	__________
	(a)	The remaining cash payments related to these reserves for restructuring and other initiatives, including temporary layoff benefits of $353 million, $356 million and $376 million at December 31, 2013, 2012 and 2011 for GMNA, primarily relate to postemployment benefits to be paid.
	Year Ended December 31, 2013
	GMNA recorded charges, interest accretion and other and revisions to estimates primarily related to cash severance incentive programs for skilled trade U.S. hourly employees and service cost for hourly layoff benefits. Due to the expected closure of the Oshawa Consolidated Plant in December 2016, affected employees will be eligible for a voluntary restructuring separation incentive program in accordance with the existing collective bargaining agreement that provides cash and a car voucher. During 2013 some of the affected employees separated and the related costs were recorded.
	GME recorded charges, interest accretion and other and revisions to estimates primarily related to our plan to terminate all vehicle and transmission production at our Bochum, Germany facility by the end of 2014. Through December 31, 2013 the active separation programs related to Germany had a total cost of $194 million and had affected a total of 450 employees. We expect to complete these programs in 2014 and incur additional charges of $650 million, which will affect an additional 3,300 employees.
	GMIO recorded charges, interest accretion and other and revisions to estimates for separation programs in Australia and Korea and programs related to the withdrawal of the Chevrolet brand from Europe described below. Through December 31, 2013 the active separation programs in GMIO had a total cost of $420 million and had affected a total of 4,100 employees. We expect to complete these programs in 2017 and incur additional restructuring and other charges of $640 million.
	GMSA recorded charges for active separation programs in Brazil. Through December 31, 2013 the active separation programs related to Brazil had a total cost of $103 million.
	Year Ended December 31, 2012
	GMNA recorded charges, interest accretion and other and revisions to estimates related to our 2011 UAW labor agreement and increased production capacity utilization in Canada. Our 2011 UAW labor agreement included cash severance incentive programs which were completed at March 31, 2012 for skilled trade U.S. hourly employees. A total of 1,400 skilled trade U.S. hourly employees participated in these programs at a total cost of $99 million which was recorded upon irrevocable acceptances by both parties. Substantially all of the program cost was recorded in the three months ended March 31, 2012.
	GME recorded charges, interest accretion and other and revisions to estimates for previously announced separation and early retirement programs. Through December 31, 2012 the active separation programs related to Germany and the United Kingdom had a total cost of $400 million and had affected a total of 2,550 employees, of which $310 million related to a program initiated in Germany in 2010.
	GMIO recorded charges, interest accretion and other related to voluntary separation programs primarily in Korea and Australia. Through December 31, 2012 these programs had a total cost of $69 million which affected 650 employees.
	GMSA recorded charges of $87 million for employee separation costs related to a separation program in Brazil.
	Year Ended December 31, 2011
	GMNA recorded charges, interest accretion and other primarily related to special attrition programs for skilled trade U.S. hourly employees, service cost for hourly layoff benefits and Canadian restructuring activities.
	GME recorded charges, interest accretion and other for separation programs primarily related to previously announced programs in Germany. Through December 31, 2011 these programs had a total cost of $1.1 billion and affected a total of 6,700 employees and included the December 2010 closure of the Antwerp, Belgium facility.
	GMSA recorded charges, interest accretion and other for separation programs primarily related to the voluntary separation program in Brazil implemented in the three months ended December 31, 2011. A total of 900 employees in Brazil participated in the separation program at a total cost of $74 million.
	Withdrawal of the Chevrolet Brand from Europe
	In December 2013 we announced our plans to focus our marketing and product portfolio on our Opel and Vauxhall brands in Western and Central Europe and cease mainstream distribution of Chevrolet brand in those markets in 2015. This decision impacts 1,200 Chevrolet dealers and distributors in the affected countries and 480 Chevrolet Europe employees. In the three months ended December 31, 2013 we recorded pre-tax charges of $636 million, net of noncontrolling interests of $124 million. These charges included dealer restructuring costs of $233 million and employee severance costs of $30 million which are reflected in the table above. The remaining charges for intangible asset impairments of $264 million and sales incentive, inventory related and other costs of $233 million are not included in the table above. We may incur additional charges for exit costs of up to $300 million primarily through the first half of 2014. Refer to Note 11 for additional information on the intangible asset impairment charges.
	Manufacturing Operations at Holden
	In December 2013 we announced plans to cease vehicle and engine manufacturing and significantly reduce engineering operations at Holden by the end of 2017. Holden will continue to sell imported vehicles through its Holden dealer network and maintain its global design studio. This decision affects 2,900 employees from the Elizabeth vehicle manufacturing plant and Holden's Victorian workforce. In the three months ended December 31, 2013 we recorded pre-tax charges of $536 million in Automotive cost of sales consisting primarily of asset impairment charges of $477 million, including property, plant and equipment, which are not included in the table above. The remaining charges relate to exit-related costs, including certain employee severance related costs, of $59 million which are included in the table above. We expect to incur additional charges through 2017 for incremental future cash payments of employee severance once negotiations of the amount are completed. Refer to Note 9 for additional information on the property, plant and equipment impairment charges.

Interest_Income_and_Other_NonO

Interest Income and Other Non-Operating, net	12 Months Ended
	Dec. 31, 2013
Interest and Other Income [Abstract]	'
Interest Income and Other Non-Operating, net [Text Block]	'
	Interest Income and Other Non-Operating Income, net
	The following table summarizes the components of Interest income and other non-operating income, net (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Interest income	$	246		$	343		$	455
	Net gains (losses) on derivatives	(13		)	(63		)	41
	Dividends and royalties	97			98			153
	Foreign currency transaction and translation gains (losses)	(154		)	16			(48		)
	Gains (losses) on securities and other investments - realized and unrealized	691			(193		)	(9		)
	Deferred income from technology agreements	100			114			113
	Other	96			530			146
	Total interest income and other non-operating income, net	$	1,063		$	845		$	851

Stockholders_Equity_and_Noncon

Stockholders' Equity and Noncontrolling Interests	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Stockholders' Equity and Noncontrolling Interests [Text Block]	'
	Stockholders’ Equity and Noncontrolling Interests
	Preferred and Common Stock
	We have 2.0 billion shares of preferred stock and 5.0 billion shares of common stock authorized for issuance. We had 156 million and 276 million shares of Series A Preferred Stock issued and outstanding at December 31, 2013 and 2012. There were no shares of Series B Preferred Stock issued and outstanding at December 31, 2013 and 100 million shares issued and outstanding at December 31, 2012. We had 1.5 billion and 1.4 billion shares of common stock issued and outstanding at December 31, 2013 and 2012.
	Preferred Stock
	The following table summarizes significant features relating to our preferred stock (dollars in millions, except for per share amounts):
		Liquidation Preference Per Share			Dividend Rate Per Annum			Dividends Paid
								Years Ended December 31,
								2013				2012				2011
	Series A Preferred Stock	$	25		9	%		$	1,370			$	621			$	621
	Series B Preferred Stock	$	50		4.75	%		$	237			$	238			$	243
	Series A Preferred Stock
	The Series A Preferred Stock ranks senior with respect to liquidation preference and dividend rights to our common stock and Series B Preferred Stock and any other class or series of stock that we may issue. In the event of any voluntary or involuntary liquidation, dissolution or winding-up of our affairs, a holder of Series A Preferred Stock will be entitled to be paid, before any distribution or payment may be made to any holders of common stock or other series of stock, the liquidation amount and the amount of any accrued and unpaid dividends, if any, whether or not declared, prior to such distribution or payment date. On or after December 31, 2014, the Series A Preferred Stock may be redeemed, in whole or in part, for cash at a price per share equal to the $25.00 per share liquidation amount, plus any accrued and unpaid dividends. Upon a redemption or purchase of any or all Series A Preferred Stock, the difference, if any, between the recorded amount of the Series A Preferred Stock being redeemed or purchased and the consideration paid would be recorded as a charge to Net income attributable to common stockholders.
	In September 2013 we purchased 120 million shares (or 43.5% of the total shares outstanding) of our Series A Preferred Stock held by the New VEBA at a price equal to 108.1% of the aggregate liquidation amount for $3.2 billion. We recorded a loss for the difference between the carrying amount of the Series A Preferred Stock purchased and the consideration paid, which reduced Net income attributable to common stockholders by $816 million. If all of the remaining Series A Preferred Stock were redeemed or purchased at its par value, Net income available to common stockholders would be reduced by a charge of $800 million.
	Series B Preferred Stock
	On December 1, 2013 each of the 100 million shares of our Series B Preferred Stock outstanding automatically converted into 1.3736 shares of our common stock for a total of 137 million common shares. The number of shares of our common stock issued upon mandatory conversion of each share of Series B Preferred Stock was determined based on the average of the closing prices of our common stock over the 40 consecutive trading day period ended November 26, 2013.
	Common Stock
	Holders of our common stock are entitled to dividends at the sole discretion of our Board of Directors. However, the terms of the Series A Preferred Stock prohibit, subject to exceptions, the payment of dividends on our common stock unless all accrued and unpaid dividends on the Series A Preferred Stock are paid in full. Holders of common stock are entitled to one vote per share on all matters submitted to our stockholders for a vote. The liquidation rights of holders of our common stock are secondary to the payment or provision for payment of all our debts and liabilities and to holders of our Series A Preferred Stock, if any such shares are then outstanding.
	In December 2012 we purchased 200 million shares of our common stock from the UST at a price of $27.50 per share for a total of $5.5 billion. The purchase price represented a premium to the prior day's closing price of $25.49. We allocated the purchase price between a direct reduction to shareholder's equity of $5.1 billion and a charge to Automotive selling, general and administrative expense of $402 million representing the premium. These shares were retired and returned to authorized but unissued status. In the year ended December 31, 2012 we issued 1.3 million shares of common stock for the settlement of restricted stock and salary stock awards and 400,000 shares for exercised warrants. Refer to Note 23 for additional information on our stock incentive plans.
	Warrants
	In connection with the 363 Sale we issued two tranches of warrants, each to acquire 136 million shares of common stock, to MLC which have all been distributed to creditors of Old GM and to the GUC Trust by MLC and one tranche of warrants to acquire 46 million shares of common stock to the New VEBA. The first tranche of MLC warrants is exercisable at any time prior to July 10, 2016 at an exercise price of $10.00 per share and the second tranche of MLC warrants is exercisable at any time prior to July 10, 2019 at an exercise price of $18.33 per share. The New VEBA warrants, which were subsequently sold by the New VEBA, are exercisable at any time prior to December 31, 2015 at an exercise price of $42.31 per share. Upon exercise of the warrants, the shares issued will be included in the number of basic shares outstanding used in the computation of earnings per share. The number of shares of common stock underlying each of the warrants and the per share exercise price are subject to adjustment as a result of certain events, including stock splits, reverse stock splits and stock dividends. The outstanding balance of warrants was 293 million and 313 million at December 31, 2013 and 2012.
	Accumulated Other Comprehensive Loss
	The following table summarizes the components of Accumulated other comprehensive loss (dollars in millions):
		Years Ended December 31,
		2013											2012										2011
		Pre-tax Amount			Tax Expense (Benefit)				Net Amount				Pre-tax Amount				Tax Expense(Benefit)			Net Amount			Pre-tax Amount			Tax Expense (Benefit)			Net Amount
	Foreign currency translation adjustments
	Balance at beginning of period	$	112		$	11			$	101			$	226			$	11		$	215		$	405		$	11		$	394
	Other comprehensive income (loss)	(722		)	11				(733		)		(103		)		—			(103		)	(183		)	—			(183		)
	Purchase of noncontrolling interest shares	—			—				—				—				—			—			(6		)	—			(6		)
	Other comprehensive income (loss) attributable to noncontrolling interests	18			—				18				(11		)		—			(11		)	10			—			10
	Balance at end of period	$	(592	)	$	22			$	(614	)		$	112			$	11		$	101		$	226		$	11		$	215
	Cash flow hedging gains (losses), net
	Balance at beginning of period	$	—		$	—			$	—			$	2			$	—		$	2		$	(23	)	$	—		$	(23	)
	Other comprehensive income before reclassification adjustment	—			—				—				—				—			—			25			—			25
	Reclassification adjustment	—			—				—				(2		)		—			(2		)	—			—			—
	Other comprehensive income (loss)	—			—				—				(2		)		—			(2		)	25			—			25
	Balance at end of period	$	—		$	—			$	—			$	—			$	—		$	—		$	2		$	—		$	2
	Unrealized gain (loss) on securities, net
	Balance at beginning of period	$	63		$	22			$	41			$	1			$	5		$	(4	)	$	—		$	5		$	(5	)
	Other comprehensive income (loss) before reclassification adjustment	133			(6		)		139				(140		)		22			(162		)	1			—			1
	Reclassification adjustment	(185		)	(7		)		(178		)		202				(5		)	207			—			—			—
	Other comprehensive income (loss)	(52		)	(13		)		(39		)		62				17			45			1			—			1
	Balance at end of period	$	11		$	9			$	2			$	63			$	22		$	41		$	1		$	5		$	(4	)
	Defined benefit plans, net
	Balance at beginning of period	$	(7,794	)	$	400			$	(8,194	)		$	(4,665	)		$	1,409		$	(6,074	)	$	2,298		$	1,413		$	885
	Other comprehensive income before reclassification adjustment - prior service cost (credit)	6			(4		)		10				(53		)		(95		)	42			302			1			301
	Other comprehensive income (loss) before reclassification adjustment - actuarial gain (loss)	8,673			3,091				5,582				(3,180		)		(926		)	(2,254		)	(7,578		)	(10		)	(7,568		)
	Reclassification adjustment - prior service cost (credit)(a)	(128		)	(44		)		(84		)		(125		)		(5		)	(120		)	(52		)	—			(52		)
	Reclassification adjustment - actuarial gain (loss)(a)	178			(7		)		185				229				17			212			366			5			361
	Other comprehensive income (loss)	8,729			3,036				5,693				(3,129		)		(1,009		)	(2,120		)	(6,962		)	(4		)	(6,958		)
	Purchase of noncontrolling interest shares	—			—				—				—				—			—			(1		)	—			(1		)
	Balance at end of period	$	935		$	3,436			$	(2,501	)		$	(7,794	)		$	400		$	(8,194	)	$	(4,665	)	$	1,409		$	(6,074	)
	Accumulated Other Comprehensive Loss
	Balance at beginning of period	$	(7,619	)	$	433			$	(8,052	)		$	(4,436	)		$	1,425		$	(5,861	)	$	2,680		$	1,429		$	1,251
	Other comprehensive income (loss) before reclassification adjustment	8,090			3,092				4,998				(3,476		)		(999		)	(2,477		)	(7,433		)	(9		)	(7,424		)
	Reclassification adjustment	(135		)	(58		)		(77		)		304				7			297			314			5			309
	Other comprehensive income (loss)	7,955			3,034				4,921				(3,172		)		(992		)	(2,180		)	(7,119		)	(4		)	(7,115		)
	Purchase of noncontrolling interest shares	—			—				—				—				—			—			(7		)	—			(7		)
	Other comprehensive income (loss) attributable to noncontrolling interests	18			—				18				(11		)		—			(11		)	10			—			10
	Balance at end of period	$	354		$	3,467			$	(3,113	)		$	(7,619	)		$	433		$	(8,052	)	$	(4,436	)	$	1,425		$	(5,861	)
	__________
	(a)	Included in the computation of net periodic pension and OPEB (income) expense. Refer to Note 15 for additional information.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	Earnings Per Share
	Basic and diluted earnings per share are computed by dividing Net income attributable to common stockholders by the weighted-average common shares outstanding in the period. Diluted earnings per share is computed by giving effect to all potentially dilutive securities that are outstanding.
	The following table summarizes basic and diluted earnings per share (in millions, except for per share amounts):
		Years Ended December 31,
		2013			2012			2011
	Basic earnings per share
	Net income attributable to stockholders	$	5,346		$	6,188		$	9,190
	Less: cumulative dividends on preferred stock and charge related to purchase of preferred stock(a)	(1,576		)	(859		)	(859		)
	Less: undistributed earnings allocated to Series B Preferred Stock participating security	—			(470		)	(746		)
	Net income attributable to common stockholders	$	3,770		$	4,859		$	7,585
	Weighted-average common shares outstanding - basic	1,393			1,566			1,536
	Basic earnings per common share	$	2.71		$	3.1		$	4.94
	Diluted earnings per share
	Net income attributable to stockholders	$	5,346		$	6,188		$	9,190
	Add: preferred dividends to holders of Series B Preferred Stock	218			—			—
	Less: cumulative dividends on preferred stock and charge related to purchase of preferred stock(a)	(1,576		)	(859		)	(859		)
	Less: undistributed earnings allocated to Series B Preferred Stock participating security	—			(442		)	(693		)
	Net income attributable to common stockholders	$	3,988		$	4,887		$	7,638
	Weighted-average common shares outstanding - diluted
	Weighted-average common shares outstanding - basic	1,393			1,566			1,536
	Dilutive effect of warrants	146			104			130
	Dilutive effect of conversion of Series B Preferred Stock	134			—			—
	Dilutive effect of RSUs	3			5			2
	Weighted-average common shares outstanding - diluted	1,676			1,675			1,668
	Diluted earnings per common share	$	2.38		$	2.92		$	4.58
	__________
	(a)	Includes earned but undeclared dividends of $15 million, $26 million and $26 million on our Series A Preferred Stock in the years ended December 31, 2013, 2012 and 2011 and $20 million on our Series B Preferred Stock in the years ended December 31, 2012 and 2011.
	Holders of the Series B Preferred Stock had a right to participate in our undistributed earnings because a dividend, if declared, would result in a transfer of value to the holder through an adjustment to the fixed conversion ratios through various anti-dilution provisions. Based on the nature of the Series B Preferred Stock and the nature of these anti-dilution provisions, we concluded that the Series B Preferred Stock was a participating security and, as such, requires the application of the more dilutive of the two-class or if-converted method to calculate earnings per share when the applicable market value of our common stock is below or above the range of $33.00 to $39.60 per common share. For purposes of calculating earnings per share, the applicable market value is calculated as the average of the closing prices of our common stock over the 40 consecutive trading day period ending on the third trading day immediately preceding the date of our mandatory conversion in 2013 or the date of our financial statements for 2012 and 2011. The calculation of the applicable market value is applied to the full year, irrespective of the applicable market value computed during the prior quarters of the current year.
	On the mandatory conversion date of our Series B Preferred Stock, December 1, 2013, the applicable market value of our common stock was within the range of $33.00 to $39.60 per common share and, as such, we applied the if-converted method for purposes of calculating diluted earnings per share in the year ended December 31, 2013. In the years ended December 31, 2012 and 2011, we were required to use the two-class method for calculating earnings per share as the applicable market value of our common stock was below $33.00 per common share. Under the two-class method for computing earnings per share, undistributed earnings are allocated to common stock and the Series B Preferred Stock according to their respective participation rights in undistributed earnings, as if all the earnings for the period had been distributed. This allocation to the Series B Preferred Stock holders reduced Net income attributable to common stockholders, resulting in a lower basic and dilutive earnings per share amount. The impact on diluted earnings per share was an increase of $0.13 in the year ended December 31, 2013 using the if-converted as compared to the two-class method. Our calculation of earnings per share varied from period to period depending on whether the two-class or if-converted method was required.
	The application of the two-class method resulted in an allocation of undistributed earnings to our Series B Preferred Stock holders and, accordingly, 152 million common stock equivalents from the assumed conversion of the Series B Preferred Stock are not considered outstanding for purposes of determining the weighted-average common shares outstanding in the computation of diluted earnings per share for December 31, 2012 and 2011.
	In the years ended December 31, 2013, 2012 and 2011 warrants to purchase 46 million shares were not included in the computation of diluted earnings per share because the warrants' exercise price was greater than the average market price of the common shares.

Stock_Incentive_Plans

Stock Incentive Plans	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock Incentive Plans [Text Block]	'
	Stock Incentive Plans
	Our stock incentive plans consist of the 2009 Long-Term Incentive Plan and the Salary Stock Plan. Both plans are administered by the Executive Compensation Committee of our Board of Directors. The aggregate number of shares with respect to which awards may be granted under these amended plans shall not exceed 75 million.
	Long-Term Incentive Plan
	We granted 7 million, 7 million and 5 million RSUs in the years ended December 31, 2013, 2012 and 2011. These awards granted either cliff vest or ratably vest generally over a three-year service period, as defined in the terms of each award. Our policy is to issue new shares upon settlement of RSUs.
	The 2013 awards granted to the Top 25 highest compensated employees will settle on the second and third anniversary dates of grant in 25% increments consistent with the terms of the 2009 Long-Term Incentive Plan. The awards for the Next 75 highest compensated employees will settle on the second and third anniversary dates of grant. The awards for the non-Top 100 highest compensated employees will settle on the first, second and third anniversary dates of grant. Vesting and subsequent settlement will generally occur based upon employment at the end of each specified service period.
	The 2012 awards granted to the Top 25 highest compensated employees will settle on the second and third anniversary dates of grant in 25% increments consistent with the terms of the 2009 Long-Term Incentive Plan. The awards for the non-Top 25 highest compensated employees will vest and settle on the second and third anniversary dates of grant. Vesting and subsequent settlement will generally occur based upon employment at the end of each specified service period.
	The 2011 awards granted to the Top 25 highest compensated employees will settle three years from the grant date in 25% increments consistent with the terms of the 2009 Long-Term Incentive Plan. The awards for the Next 75 highest compensated employees will settle either: (1) three years from the date of grant; or (2) on the first and third anniversary dates of grant. The awards to the non-Top 100 highest compensated employees will settle on the first, second and third anniversary dates of grant. Vesting and subsequent settlement will generally occur based upon employment at the end of each specified service period.
	Retirement eligible participants that are non-Top 100 highest compensated employees who retire in the first twelve months following the grant will retain and vest a pro-rata portion of RSUs earned and those who retire after the first anniversary of the grant will retain and vest the full RSU grant. The vested award will be payable on the settlement date.
	The plan was amended in January 2014 to provide cash payment, on a going forward basis, of dividend equivalents upon settlement to active employees and certain former employees with outstanding awards as of the amendment date.
	Salary Stock Plan
	In the years ended December 31, 2013, 2012 and 2011 a portion of each participant's salary was accrued on each salary payment date and converted to RSUs on a quarterly basis. In March 2012 we amended the plan to provide for cash settlement of awards and reclassified $97 million from Additional paid-in capital to Accrued liabilities and Other liabilities and deferred income taxes. Prior to this amendment it was our policy to issue new shares upon settlement of these awards. In June 2013 we amended the plan to provide for cash or share settlement of awards based on election by the participant. The plan was amended in January 2014 to provide cash payment, on a going forward basis, of dividend equivalents upon settlement to active employees with outstanding awards as of the amendment date. The liability for these awards continues to be remeasured to fair value at the end of each reporting period.
	RSUs
	The following table summarizes information about the RSUs under our stock incentive plans (RSUs in millions):
		Shares		Weighted-Average Grant Date Fair Value			Weighted-Average Remaining Contractual Term in Years
	RSUs outstanding at January 1, 2013	26.9		$	23.06		0.7
	Granted	8.9		$	29.05
	Settled	(16.0	)	$	20.6
	Forfeited or expired	(1.2	)	$	27.2
	RSUs outstanding at December 31, 2013	18.6		$	27.76		1.2
	RSUs unvested and expected to vest at December 31, 2013	9.2		$	27.94		1.6
	RSUs vested and payable at December 31, 2013	8.8		$	27.61		—
	RSUs granted in the year ended December 31, 2012			$	25.1
	RSUs granted in the year ended December 31, 2011			$	31.18
	The following table summarizes compensation expense recorded for our stock incentive plans (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Compensation expense	$	311		$	302		$	233
	Income tax benefit	$	100		$	100		$	—
	At December 31, 2013 the total unrecognized compensation expense for nonvested equity awards granted was $149 million. This expense is expected to be recorded over a weighted-average period of 1.6 years. The total fair value of RSUs vested in the years ended December 31, 2013, 2012 and 2011 was $342 million, $141 million and $105 million. In the years ended December 31, 2013, 2012 and 2011 total payments for 3.1 million, 1.6 million and 456,000 RSUs settled under stock incentive plans were $94 million, $36 million and $14 million.

Supplementary_Quarterly_Financ

Supplementary Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Supplementary Quarterly Financial Information (Unaudited) [Text Block]	'
	Supplementary Quarterly Financial Information (Unaudited)
	The following tables summarize supplementary quarterly financial information (dollars in millions, except per share amounts):
		1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
	2013
	Total net sales and revenue	$	36,884	$	39,075	$	38,983	$	40,485
	Automotive gross margin	$	3,727	$	4,416	$	4,954	$	4,070
	Net income	$	1,185	$	1,388	$	1,705	$	1,053
	Net income attributable to stockholders	$	1,175	$	1,414	$	1,717	$	1,040
	Earnings per share, basic	$	0.63	$	0.87	$	0.5	$	0.64
	Earnings per share, diluted	$	0.58	$	0.75	$	0.45	$	0.57
		1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
	2012
	Total net sales and revenue	$	37,759	$	37,614	$	37,576	$	39,307
	Automotive gross margin	$	4,418	$	4,449	$	4,327	$	(3,135	)
	Net income	$	1,350	$	1,901	$	1,854	$	1,031
	Net income attributable to stockholders	$	1,315	$	1,846	$	1,833	$	1,194
	Earnings per share, basic	$	0.64	$	0.95	$	0.94	$	0.58
	Earnings per share, diluted	$	0.6	$	0.9	$	0.89	$	0.54
	Prior to the three months ended June 30, 2013 we used the two-class method for calculating earnings per share because Series B Preferred Stock was a participating security.
	The three months ended December 31, 2013 included the following on a pre-tax (except tax matters) and pre-noncontrolling interests basis:
	•	Benefit from the release of GM Korea wage litigation accruals of $846 million in GMIO.
	•	Property and intangible asset impairment charges of $805 million at Holden and GM India in GMIO.
	•	Charges of $745 million related to our plans to cease mainstream distribution of Chevrolet brand in Europe in GMIO.
	•	Gain on sale of equity investment in Ally Financial of $483 million in Corporate.
	•	Goodwill impairment charges of $481 million in GMIO.
	•	Tax benefit of $473 million from remeasurement of uncertain tax position in Corporate.
	•	Gain on sale of equity investment in PSA of $152 million in GME.
	The three months ended March 31, 2013 included the following on a pre-tax and pre-noncontrolling interests basis:
	•	Charge of $162 million in GMSA for the Venezuela currency devaluation.
	The three months ended December 31, 2012 included the following on a pre-tax and pre-noncontrolling interests basis:
	•	Deferred tax asset valuation allowance release of $36.3 billion in the U.S. and Canada.
	•	Goodwill impairment charges of $26.5 billion in GMNA and GMIO.
	•	Property, plant and equipment impairment charges of $3.7 billion in GME.
	•	Pension settlement charge of $2.6 billion in GMNA.
	•	Intangible asset impairment charges of $1.8 billion in GME.
	•	Charge of $525 million for GM Korea hourly wage litigation.
	•	Charge of $402 million which represents the premium paid to purchase our common stock from the UST in Corporate.
	The three months ended March 31, 2012 included the following on a pre-tax and pre-noncontrolling interests basis:
	•	Goodwill impairment charges of $617 million in GMIO and GME.

Segment_Reporting

Segment Reporting	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment Reporting [Text Block]	'
	Segment Reporting
	We analyze the results of our business through our five segments: GMNA, GME, GMIO, GMSA and GM Financial. The chief operating decision maker evaluates the operating results and performance of our automotive segments through Income (loss) before interest and income taxes, as adjusted for additional amounts, which are presented net of noncontrolling interests, and evaluates GM Financial through income before income taxes. Each segment has a manager responsible for executing our strategies. Our automotive manufacturing operations are integrated within the segments, benefit from broad-based trade agreements and are subject to regulatory requirements, such as Corporate Average Fuel Economy regulations. While not all vehicles within a segment are individually profitable on a fully allocated cost basis, those vehicles are needed in our product mix in order to attract customers to dealer showrooms and to maintain sales volumes for other, more profitable vehicles. Because of these and other factors, we do not manage our business on an individual brand or vehicle basis.
	In the three months ended March 31, 2013 we changed our managerial and financial reporting structure to measure our reportable segments revenue and profitability based on the geographic area in which we sell vehicles to third party customers. We record certain transactions between our automotive and finance segments as intersegment activity and eliminate them in consolidation. The new reporting structure provides clearer profit and revenue visibility across geographic areas and identifies our profitability at the point of sale. Previously, it was based on the geographic area in which the vehicles originated and our managerial and financial reporting structure included intercompany sales and cost of sales in our segment results. Certain expenses such as engineering, warranty, recall campaigns and selling, general and administrative are allocated to the geographic area in which the vehicle is sold to third party customers. We have retrospectively revised the segment presentation for all periods presented.
	Substantially all of the cars, trucks and parts produced are marketed through retail dealers in North America, and through distributors and dealers outside of North America, the substantial majority of which are independently owned.
	In addition to the products sold to dealers for consumer retail sales, cars and trucks are also sold to fleet customers, including daily rental car companies, commercial fleet customers, leasing companies and governments. Sales to fleet customers are completed through the network of dealers and in some cases sold directly to fleet customers. Retail and fleet customers can obtain a wide range of aftersale vehicle services and products through the dealer network, such as maintenance, light repairs, collision repairs, vehicle accessories and extended service warranties.
	GMNA primarily meets the demands of customers in North America with vehicles developed, manufactured and/or marketed under the following four brands:
	•     Buick	•     Cadillac	•     Chevrolet	•     GMC
	The demands of customers outside of North America are primarily met with vehicles developed, manufactured and/or marketed under the following brands:
	•     Buick	•     Chevrolet	•     Holden	•     Vauxhall
	•     Cadillac	•     GMC	•     Opel
	At December 31, 2013 we also had equity ownership stakes directly or indirectly in entities through various regional subsidiaries, primarily in Asia that design, manufacture and market vehicles under the following brands:
	•     Alpheon	•     Buick	•     Chevrolet	•     Wuling
	•     Baojun	•     Cadillac	•     Jiefang
	All intersegment balances and transactions have been eliminated in consolidation.
	The following tables summarize key financial information by segment (dollars in millions):
		At and For the Year Ended December 31, 2013
		GMNA			GME			GMIO			GMSA			Corporate			Eliminations			Total Automotive			GM Financial			Eliminations			Total
	Sales
	External customers	$	95,091		$	20,110		$	20,263		$	16,478		$	150					$	152,092		$	—		$	—		$	152,092
	GM Financial revenue	—			—			—			—			—						—			3,344			(9		)	3,335
	Intersegment	8			—			—			—			—						8			—			(8		)	—
	Total net sales and revenue	$	95,099		$	20,110		$	20,263		$	16,478		$	150					$	152,100		$	3,344		$	(17	)	$	155,427
	Income (loss) before interest and taxes-adjusted	$	7,461		$	(844	)	$	1,230		$	327		$	(494	)				$	7,680		$	898		$	—		$	8,578
	Adjustments(a)	$	(100	)	$	153		$	(1,169	)	$	(157	)	483						$	(790	)	(15		)	$	—		(805		)
	Corporate interest income													249												$	(3	)	246
	Automotive interest expense													338												$	(4	)	334
	Loss on extinguishment of debt													212									—						212
	Income (loss) before income taxes													(312		)							883						7,473
	Income tax expense													1,826									300			$	1		2,127
	Net income (loss) attributable to stockholders													$	(2,138	)							$	583					$	5,346
	Equity in net assets of nonconsolidated affiliates	$	74		$	7		$	8,009		$	4		$	—		$	—		$	8,094		$	—		$	—		$	8,094
	Total assets	$	87,978		$	10,341		$	23,425		$	11,488		$	26,460		$	(29,642	)	$	130,050		$	38,084		$	(1,790	)	$	166,344
	Expenditures for property	$	5,466		$	770		$	772		$	444		$	92		$	5		$	7,549		$	16		$	—		$	7,565
	Depreciation, amortization and impairment of long-lived assets and finite-lived intangible assets	$	4,216		$	406		$	1,806		$	522		$	63		$	(1	)	$	7,012		$	498		$	(10	)	$	7,500
	Equity income and gain on investments	$	15		$	—		$	1,794		$	1		$	—		$	—		$	1,810		$	—		$	—		$	1,810
	__________
	(a)	Consists of pension settlement charges of $56 million and charges related to PSA product development agreement of $49 million in GMNA; gain on sale of equity investment in PSA of $152 million in GME; property and intangible asset impairment charges of $774 million, costs related to the withdrawal of the Chevrolet brand in Europe of $621 million and goodwill impairment charges of $442 million, partially offset by GM Korea hourly wage litigation of $577 million and acquisition of GM Korea preferred shares of $67 million in GMIO, all net of noncontrolling interests; Venezuela currency devaluation of $162 million in GMSA; gain on sale of equity investment in Ally Financial of $483 million in Corporate; costs related to the withdrawal of the Chevrolet brand in Europe of $15 million in GM Financial; and income related to various insurance recoveries of $35 million.
		At and For the Year Ended December 31, 2012
		GMNA			GME			GMIO			GMSA			Corporate			Eliminations			Total Automotive			GM Financial			Eliminations			Total
	Sales
	External customers	$	89,912		$	20,689		$	22,954		$	16,700		$	40					$	150,295		$	—		$	—		$	150,295
	GM Financial revenue	—			—			—			—			—						—			1,961			—			1,961
	Intersegment	(2		)	—			—			—			—						(2		)	—			2			—
	Total net sales and revenue	$	89,910		$	20,689		$	22,954		$	16,700		$	40					$	150,293		$	1,961		$	2		$	152,256
	Income (loss) before interest and taxes-adjusted	$	6,470		$	(1,939	)	$	2,528		$	457		$	(400	)				$	7,116		$	744		$	(1	)	$	7,859
	Adjustments(a)	$	(29,052	)	$	(6,391	)	$	(288	)	$	27		(402		)				$	(36,106	)	—			$	—		(36,106		)
	Corporate interest income													343															343
	Automotive interest expense													489															489
	Loss on extinguishment of debt													250									—						250
	Income (loss) before income taxes													(1,198		)							744						(28,643		)
	Income tax expense (benefit)													(35,007		)							177			$	(1	)	(34,831		)
	Net income attributable to stockholders													$	33,809								$	567					$	6,188
	Equity in net assets of nonconsolidated affiliates	$	65		$	51		$	6,764		$	3		$	—		$	—		$	6,883		$	—		$	—		$	6,883
	Total assets	$	87,100		$	9,669		$	25,032		$	11,958		$	16,991		$	(17,006	)	$	133,744		$	16,368		$	(690	)	$	149,422
	Expenditures for property	$	4,766		$	1,035		$	1,225		$	956		$	77		$	(4	)	$	8,055		$	13		$	—		$	8,068
	Depreciation, amortization and impairment of long-lived assets and finite-lived intangible assets	$	3,663		$	6,570		$	638		$	483		$	49		$	(1	)	$	11,402		$	225		$	(10	)	$	11,617
	Equity income and gain on investments	$	9		$	—		$	1,552		$	1		$	—		$	—		$	1,562		$	—		$	—		$	1,562
	Valuation allowances against deferred tax assets(b)	$	—		$	—		$	—		$	—		$	(36,261	)	$	—		$	(36,261	)	$	(103	)	$	—		$	(36,364	)
	__________
	(a)	Consists of Goodwill impairment charges of $26.4 billion, pension settlement charges of $2.7 billion and income related to various insurance recoveries of $9 million in GMNA; property impairment charges of $3.7 billion, intangible assets impairment charges of $1.8 billion, goodwill impairment charges of $590 million, impairment charges related to investment in PSA of $220 million, a charge of $119 million to record General Motors Strasbourg S.A.S. assets and liabilities to estimated fair value and income related to various insurance recoveries of $7 million in GME; GM Korea hourly wage litigation charge of $336 million, goodwill impairment charges of $132 million, which are presented net of noncontrolling interests, income related to various insurance recoveries of $112 million and income related to redemption of the GM Korea mandatorily redeemable preferred shares of $68 million in GMIO; income related to various insurance recoveries of $27 million in GMSA; and a charge of $402 million which represents the premium paid to purchase our common stock from the UST in Corporate.
	(b)	Includes valuation allowance releases of $36.5 billion net of the establishment of new valuation allowances of $0.1 billion. Amounts exclude changes related to income tax expense (benefits) in jurisdictions with a full valuation allowance throughout the period.
		For the Year Ended December 31, 2011
		GMNA			GME			GMIO			GMSA			Corporate			Eliminations			Total Automotive			GM Financial			Eliminations			Total
Sales
External customers	$	85,988		$	25,154		$	21,031		$	16,632		$	61					$	148,866		$	—		$	—		$	148,866
GM Financial revenue	—			—			—			—			—						—			1,410			—			1,410
Intersegment	3			—			—			—			—						3			—			(3		)	—
Total net sales and revenue	$	85,991		$	25,154		$	21,031		$	16,632		$	61					$	148,869		$	1,410		$	(3	)	$	150,276
Income (loss) before interest and taxes-adjusted	$	6,779		$	(1,041	)	$	2,232		$	158		$	(446	)				$	7,682		$	622		$	—		$	8,304
Adjustments(a)	$	2,394		$	(1,016	)	$	(364	)	$	63		(216		)				$	861		—			$	—		861
Corporate interest income													455															455
Automotive interest expense													540															540
Income (loss) before income taxes													(747		)							622						9,080
Income tax expense (benefit)													(295		)							185						(110		)
Net income (loss) attributable to stockholders													$	(452	)							$	437					$	9,190
Equity in net assets of nonconsolidated affiliates	$	60		$	50		$	6,678		$	2		$	—		$	—		$	6,790		$	—		$	—		$	6,790
Total assets	$	83,528		$	15,777		$	22,130		$	11,514		$	30,244		$	(31,333	)	$	131,860		$	13,112		$	(369	)	$	144,603
Expenditures for property	$	3,404		$	1,016		$	907		$	880		$	44		$	(10	)	$	6,241		$	8		$	—		$	6,249
Depreciation, amortization and impairment of long-lived assets and finite-lived intangible assets	$	3,693		$	1,371		$	491		$	454		$	50		$	(1	)	$	6,058		$	85		$	(2	)	$	6,141
Equity income and gain on investments(b)	$	1,733		$	—		$	1,458		$	1		$	—		$	—		$	3,192		$	—		$	—		$	3,192
Reversal of valuation allowances against deferred tax assets(c)	$	—		$	—		$	—		$	—		$	(488	)	$	—		$	(488	)	$	—		$	—		$	(488	)
__________
(a)	Consists of the gain on sale of our New Delphi Class A Membership Interests of $1.6 billion and the gain related to the HCT settlement of $749 million in GMNA; Goodwill impairment charges of $1.0 billion in GME; Goodwill impairment charges of $258 million and charges related to GM India of $106 million in GMIO; a gain on extinguishment of debt of $63 million in GMSA; and impairment charges of $555 million related to Ally Financial common stock and a gain on the sale of Ally Financial preferred stock of $339 million in Corporate.
(b)	Includes a gain of $1.6 billion recorded on the sale of our New Delphi Class A Membership Interests. Refer to Note 8 for additional information on the sale of New Delphi.
(c)	Amounts exclude changes related to income tax expense (benefits) in jurisdictions with a full valuation allowance throughout the period.
Automotive revenue is attributed to geographic areas based on the country in which our subsidiary is located. Automotive Financing revenue is attributed to the geographic area where the financing is originated. The following table summarizes information concerning principal geographic areas (dollars in millions):
	At and For the Years Ended December 31,
	2013						2012						2011
	Net Sales & Revenue			Long-Lived Assets			Net Sales & Revenue			Long-Lived Assets			Net Sales & Revenue			Long-Lived Assets
Automotive
U.S.	$	88,784		$	15,844		$	85,105		$	13,520		$	79,868		$	11,736
Non-U.S.	63,308			12,289			65,190			12,425			68,998			13,709
GM Financial
U.S.	2,233			2,472			1,832			1,112			1,363			532
Non-U.S.	1,102			1,043			129			590			47			300
Total consolidated	$	155,427		$	31,648		$	152,256		$	27,647		$	150,276		$	26,277
No individual country other than the U.S. represented more than 10% of our total Net sales and revenue or Long-lived assets.

Supplemental_Information_for_t

Supplemental Information for the Consolidated Statements of Cash Flows	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Information [Abstract]	'
Supplemental Information for the Consolidated Statements of Cash Flows [Text Block]	'
	Supplemental Information for the Consolidated Statements of Cash Flows
	The following table summarizes the sources (uses) of cash provided by Change in other operating assets and liabilities and cash paid for income taxes and interest (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Accounts receivable	$	8		$	(460	)	$	(1,572	)
	Inventories	59			(326		)	(2,760		)
	Automotive equipment on operating leases	(968		)	370			(522		)
	Change in other assets	(563		)	(312		)	(320		)
	Accounts payable	(485		)	162			2,139
	Income taxes payable	(161		)	155			(360		)
	Accrued liabilities and other liabilities	784			1,041			(727		)
	Total	$	(1,326	)	$	630		$	(4,122	)
	Cash paid for income taxes and interest
	Cash paid for income taxes	$	727		$	575		$	569
	Cash paid for interest (net of amounts capitalized) - Automotive	$	299		$	335		$	226
	Cash paid for interest (net of amounts capitalized) - GM Financial	760			298			284
	Total cash paid for interest (net of amounts capitalized)	$	1,059		$	633		$	510

Nature_Of_Operations_and_Basis1

Nature Of Operations and Basis of Presentation (Policies)	12 Months Ended
	Dec. 31, 2013
Nature of Operations and Basis of Presentation [Abstract]	'
Consolidation, Policy [Policy Text Block]	'
	Principles of Consolidation
	The consolidated financial statements include our accounts and those of our subsidiaries that we control due to ownership of a majority voting interest and our consolidated variable interest entities (VIEs) of which we are the primary beneficiary. We continually evaluate our involvement with VIEs to determine whether we have variable interests and are the primary beneficiary of the VIE. When these criteria are met, we are required to consolidate the VIE. Our share of earnings or losses of nonconsolidated affiliates is included in our consolidated operating results using the equity method of accounting when we are able to exercise significant influence over the operating and financial decisions of the affiliate. We use the cost method of accounting if we are not able to exercise significant influence over the operating and financial decisions of the affiliate. All intercompany balances and transactions have been eliminated in consolidation.
	Certain prior year amounts were reclassified to conform to our current year presentation.
Use of Estimates, Policy [Policy Text Block]	'
	Use of Estimates in the Preparation of the Financial Statements
	The consolidated financial statements are prepared in conformity with U.S. GAAP, which requires the use of estimates, judgments and assumptions that affect the amounts of assets and liabilities at the reporting date and the amounts of revenue and expenses in the periods presented. We believe that the accounting estimates employed are appropriate and the resulting balances are reasonable; however, due to the inherent uncertainties in making estimates actual results could differ from the original estimates, requiring adjustments to these balances in future periods.

Significant_Accounting_Policie1

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Revenue Recognition, Policy [Policy Text Block]	'
	Revenue Recognition
	Automotive
	Automotive net sales and revenue are primarily composed of revenue generated from the sale of vehicles. Vehicle sales are recorded when title and all risks and rewards of ownership have passed to our customers. For the majority of our automotive sales this occurs when a vehicle is released to the carrier responsible for transporting to a dealer and when collectability is reasonably assured. Vehicle sales are recorded when the vehicle is delivered to the dealer in most remaining cases. Provisions for recurring dealer and customer sales and leasing incentives, consisting of allowances and rebates, are recorded as reductions to Automotive net sales and revenue at the time of vehicle sales. All other incentives, allowances and rebates related to vehicles previously sold are recorded as reductions to Automotive net sales and revenue when announced.
	Vehicle sales to daily rental car companies with guaranteed repurchase obligations are accounted for as operating leases. Estimated lease revenue is recorded ratably over the estimated term of the lease based on the difference between net sales proceeds and the guaranteed repurchase amount. The difference between the cost of the vehicle and estimated residual value is depreciated on a straight-line basis over the estimated term of the lease.
	Automotive Financing - GM Financial
	Finance income earned on receivables is recognized using the effective interest method for consumer financing receivables and accrual method for commercial financing receivables. Fees and commissions (including incentive payments) received and direct costs of originating loans are deferred and amortized over the term of the related finance receivables using the effective interest method and are removed from the consolidated balance sheets when the related finance receivables are sold, charged off or paid in full. Accrual of finance charge income is generally suspended on accounts that are more than 60 days delinquent, accounts in bankruptcy and accounts in repossession. Payments received on nonaccrual loans are first applied to any fees due, then to any interest due and then any remaining amounts are recorded to principal. Interest accrual generally resumes once an account has received payments bringing the delinquency to less than 60 days past due.
	Income from operating lease assets, which includes lease origination fees, net of lease origination costs and incentives, is recorded as operating lease revenue on a straight-line basis over the term of the lease agreement.
Advertising and Promotion, Policy [Policy Text Block]	'
	Advertising and Promotion Expenditures
	Advertising and promotion expenditures, which are expensed as incurred, were $5.5 billion, $5.4 billion and $5.2 billion in the years ended December 31, 2013, 2012 and 2011.
Research and Development Expenditures, Policy [Policy Text Block]	'
	Research and Development Expenditures
	Research and development expenditures, which are expensed as incurred, were $7.2 billion, $7.4 billion and $8.1 billion in the years ended December, 31 2013, 2012 and 2011.
Cash Equivalents, Policy [Policy Text Block]	'
	Cash Equivalents
	Cash equivalents are defined as short-term, highly-liquid investments with original maturities of 90 days or less.
Allowance for Doubtful Accounts [Policy Text Block]	'
	Allowance for Doubtful Accounts
	The following table summarizes activity in our allowance for doubtful accounts and notes receivable (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Balance at beginning of period	$	311		$	331		$	252
	Amounts charged (credited) to costs and expenses	61			(10		)	159
	Deductions	(24		)	(46		)	(83		)
	Other	(4		)	36			3
	Balance at end of period	$	344		$	311		$	331
Fair Value Measurements, Policy [Policy Text Block]	'
	Fair Value Measurements
	A three-level valuation hierarchy, based upon observable and unobservable inputs, is used for fair value measurements. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions based on the best evidence available. These two types of inputs create the following fair value hierarchy:
	•	Level 1 - Quoted prices for identical instruments in active markets;
	•	Level 2 - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose significant inputs are observable; and
	•	Level 3 - Instruments whose significant inputs are unobservable.
	Financial instruments are transferred in and/or out of Level 1, 2 or 3 at the beginning of the accounting period in which there is a change in the valuation inputs.
Marketable Securities, Policy [Policy Text Block]	'
	Marketable Securities
	We classify marketable securities as available-for-sale or trading. Various factors, including turnover of holdings and investment guidelines, are considered in determining the classification of securities. Available-for-sale securities are recorded at fair value with unrealized gains and losses recorded net of related income taxes in Accumulated other comprehensive loss until realized. Trading securities are recorded at fair value with changes in fair value recorded in Interest income and other non-operating income, net. We determine realized gains and losses for all securities using the specific identification method.
	We measure the fair value of our marketable securities using a market approach where identical or comparable prices are available and an income approach in other cases. Securities are classified in Level 1 when quoted prices in an active market for identical securities are available. If quoted market prices are not available, fair values of securities are determined using prices from a pricing service, pricing models, quoted prices of securities with similar characteristics or discounted cash flow models and are generally classified in Level 2. These prices represent non-binding quotes. U.S. government and agency securities, sovereign debt and corporate debt securities are classified in Level 2. Our pricing service utilizes industry-standard pricing models that consider various inputs, including benchmark yields, reported trades, broker/dealer quotes, issuer spreads and benchmark securities as well as other relevant economic measures. We conduct an annual review of our pricing service. This review includes discussion and analysis of the inputs used by the pricing service to provide prices for the types of securities we hold. These inputs include prices for comparable securities, bid/ask quotes, interest rate yields and prepayment speeds. Based on our review we believe the prices received from our pricing service are a reliable representation of exit prices. Securities are classified in Level 3 in certain cases where there are unobservable inputs to the valuation in the marketplace. Level 3 financial instruments typically include, in addition to the unobservable inputs, observable components that are validated to external sources.
	An evaluation is made quarterly to determine if unrealized losses related to non-trading investments in securities are other-than-temporary. Factors considered in determining whether a loss on a marketable security is other-than-temporary include: (1) the length of time and extent to which the fair value has been below cost; (2) the financial condition and near-term prospects of the issuer; and (3) the intent to sell or likelihood to be forced to sell the security before any anticipated recovery.
Finance Receivable, Policy [Policy Text Block]	'
	Finance Receivables
	As the result of our October 2010 acquisition of GM Financial and GM Financial's acquisition of the Ally Financial, Inc. (Ally Financial) international operations, finance receivables are reported in two portfolios: pre-acquisition and post-acquisition portfolios. The pre-acquisition finance receivables portfolio consists of finance receivables that were considered to have had deterioration in credit quality at the time they were acquired with the acquisition of GM Financial or the acquisition of the Ally Financial international operations. The pre-acquisition portfolio will decrease over time with the amortization of the acquired receivables. The post-acquisition finance receivables portfolio consists of finance receivables that were considered to have had no deterioration in credit quality at the time they were acquired with the acquisition of the Ally Financial international operations and finance receivables originated since the acquisitions of GM Financial and the Ally Financial international operations. The post-acquisition portfolio is expected to grow over time as GM Financial originates new receivables.
	Pre-Acquisition Consumer Finance Receivables
	At the time of acquisitions the receivables were recorded at fair value. The pre-acquisition finance receivables were acquired at a discount, which contains two components: a non-accretable difference and an accretable yield. The accretable yield is recorded as finance charge income over the life of the acquired receivables.
	Any deterioration in the performance of the pre-acquisition finance receivables from their expected performance will result in an incremental provision for loan losses. Improvements in the performance of the pre-acquisition finance receivables will result first in the reversal of any incremental related allowance for loan losses and then in a transfer of the excess from the non-accretable difference to accretable yield, which will be recorded as finance charge income over the remaining life of the receivables.
	Post-Acquisition Consumer Finance Receivables and Allowance for Loan Losses
	Post-acquisition finance receivables originated since the acquisitions of GM Financial and the Ally Financial international operations are carried at amortized cost, net of allowance for loan losses.
	The component of the allowance for consumer finance receivables that are collectively evaluated for impairment is based on a statistical calculation supplemented by management judgment. GM Financial uses a combination of forecasting models to determine the allowance for loan losses. Factors that are considered when estimating the allowance include loss confirmation period, historical delinquency migration to loss, probability of default and loss given default. The loss confirmation period is a key assumption within the models, which represents the average amount of time between when a loss event first occurs to when the receivable is charged-off.
	Consumer finance receivables that become classified as troubled debt restructurings (TDRs) are separately assessed for impairment. A specific allowance is estimated based on the present value of the expected future cash flows of the receivable discounted at the loan's original effective interest rate.
	The finance receivables acquired with Ally Financial international operations that were considered to have no deterioration in credit quality at the time of acquisition were recorded at fair value. The purchase discount will accrete to income over the life of the receivables, based on contractual cash flows, using the effective interest method. Provisions for loan losses are charged to operations in amounts equal to net credit losses for the period. Any subsequent deterioration in the performance of the acquired receivables will result in an incremental provision for loan losses.
Inventory, Policy [Policy Text Block]	'
	Inventory
	Inventories are stated at the lower of cost or market. Market, which represents selling price less cost to sell, considers general market and economic conditions, periodic reviews of current profitability of vehicles, product warranty costs and the effect of current and expected incentive offers at the balance sheet date. Market for off-lease and other vehicles is current auction sales proceeds less disposal and warranty costs. Productive material, work in process, supplies and service parts are reviewed to determine if inventory quantities are in excess of forecasted usage or if they have become obsolete.
Equipment on Operating Leases, net, Policy [Policy Text Block]	'
	Equipment on Operating Leases, net
	Equipment on operating leases, net is reported at cost, less accumulated depreciation, net of origination fees or costs, and lease incentives. Estimated income from operating lease assets, which includes lease origination fees, net of lease origination costs, is recorded as operating lease revenue on a straight-line basis over the term of the lease agreement. Leased vehicles are depreciated on a straight-line basis to an estimated residual value over the term of the lease agreements.
	We have significant investments in vehicles in operating lease portfolios, which are composed of vehicle leases to retail customers with lease terms of up to 60 months and vehicles leased to rental car companies with lease terms that average eight months or less. We are exposed to changes in the residual values of those assets. For impairment purposes the residual values represent estimates of the values of the vehicles leased at the end of the lease contracts and are determined based on forecasted auction proceeds when there is a reliable basis to make such a determination. Realization of the residual values is dependent on the future ability to market the vehicles under the prevailing market conditions. The adequacy of the estimate of the residual value is evaluated over the life of the lease and adjustments may be made to the extent the expected value of the vehicle at lease termination changes. Adjustments may be in the form of revisions to the depreciation rate or recognition of an impairment charge. Impairment is determined to exist if the expected future cash flows, which include estimated residual values, are lower than the carrying amount of the vehicles leased. If the carrying amount is considered impaired, an impairment charge is recorded for the amount by which the carrying amount exceeds the fair value. Fair value is determined primarily using the anticipated cash flows, including estimated residual values.
	In our Automotive operations when a leased vehicle is returned the asset is reclassified from Equipment on operating leases, net to Inventories at the lower of cost or estimated selling price, less cost to sell. In our Automotive Finance operations when a leased vehicle is returned or repossessed the asset is recorded in Other assets at the lower of cost or estimated selling price, less costs to sell. Upon disposition a gain or loss is recorded for any difference between the net book value of the leased asset and the proceeds from the disposition of the asset.
	Impairment charges related to Equipment on operating leases, net are recorded in Automotive cost of sales or GM Financial operating and other expenses.
Valuation of Cost and Equity Method Investments, Policy [Policy Text Block]	'
	Valuation of Cost and Equity Method Investments
	When events and circumstances warrant, investments accounted for under the cost or equity method of accounting are evaluated for impairment. An impairment charge is recorded whenever a decline in value of an investment below its carrying amount is determined to be other-than-temporary. In determining if a decline is other-than-temporary, factors such as the length of time and extent to which the fair value of the investment has been less than the carrying amount of the investment, the near-term and longer-term operating and financial prospects of the affiliate and the intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery are considered. Impairment charges related to equity method investments are recorded in Equity income and gain on investments. Impairment charges related to cost method investments are recorded in Interest income and other non-operating income, net.
Property, net, Policy [Policy Text Block]	'
	Property, net
	Property, plant and equipment, including internal use software, is recorded at cost. Major improvements that extend the useful life or add functionality of property are capitalized. The gross amount of assets under capital leases is included in property, plant and equipment. Expenditures for repairs and maintenance are charged to expense as incurred. We depreciate all depreciable property using the straight-line method. Leasehold improvements are amortized over the period of lease or the life of the asset, whichever is shorter. The amortization of the assets under capital leases is included in depreciation expense. Upon retirement or disposition of property, plant and equipment, the cost and related accumulated depreciation are removed from the accounts and any resulting gain or loss is recorded in earnings. Impairment charges related to property are recorded in Automotive cost of sales, Automotive selling, general and administrative expense or GM Financial operating and other expenses.
	Special Tools
	Special tools represent product-specific powertrain and non-powertrain related tools, dies, molds and other items used in the vehicle manufacturing process. Expenditures for special tools are recorded at cost and are capitalized. We amortize all non-powertrain special tools over their estimated useful lives using an accelerated amortization method. We amortize powertrain special tools over their estimated useful lives using the straight-line method. Impairment charges related to special tools are recorded in Automotive cost of sales.
Goodwill, Policy [Policy Text Block]	'
	Goodwill
	Goodwill arises from the application of fresh-start reporting and acquisitions accounted for as business combinations. Goodwill is tested for impairment for all reporting units on an annual basis during the fourth quarter, or more frequently if events occur or circumstances change that would warrant such a review. When the fair value of a reporting unit falls below its carrying amount an impairment charge is recorded for the amount, if any, by which the carrying amount of goodwill exceeds its implied fair value. Fair values of reporting units are established using a discounted cash flow method. Where available and as appropriate, comparative market multiples and the quoted market price for our common stock are used to corroborate the results of the discounted cash flow method. Our reporting units are GMNA and GME and various reporting units within the GMIO, GMSA and GM Financial segments. Due to the integrated nature of our manufacturing operations and the sharing of assets, other resources and vehicle platforms among brands within GMNA and GME and because financial information by brand or country is not discrete below the operating segment level, GMNA and GME do not contain reporting units below the operating segment level. GMIO, GMSA and GM Financial are less integrated given the lack of regional trade pacts and other unique geographical differences and thus contain separate reporting units below the operating segment level. Goodwill would be reassigned on a relative-fair-value basis to a portion of a reporting unit to be disposed of or upon the reorganization of the composition of one or more of our reporting units, unless the reporting unit was never integrated.
Intangible Assets, net Policy [Policy Text Block]	'
	Intangible Assets, net
	Intangible assets, excluding Goodwill, primarily include brand names (including defensive intangibles associated with discontinued brands), technology and intellectual property, customer relationships and dealer networks.
	Intangible assets are amortized on a straight-line or an accelerated method of amortization over their estimated useful lives. An accelerated amortization method reflecting the pattern in which the asset will be consumed is utilized if that pattern can be reliably determined. We consider the period of expected cash flows and underlying data used to measure the fair value of the intangible assets when selecting a useful life. Impairment charges related to intangible assets are recorded in Automotive selling, general and administrative expense or Automotive cost of sales.
	Amortization of developed technology and intellectual property is recorded in Automotive cost of sales. Amortization of brand names, customer relationships and our dealer networks is recorded in Automotive selling, general and administrative expense or GM Financial operating and other expenses.
Valuation of Long-Lived Assets, Policy [Policy Text Block]	'
	Valuation of Long-Lived Assets
	The carrying amount of long-lived assets and finite-lived intangible assets to be held and used in the business are evaluated for impairment when events and circumstances warrant. If the carrying amount of a long-lived asset group is considered impaired, a loss is recorded based on the amount by which the carrying amount exceeds fair value. Product-specific long-lived asset groups are tested for impairment at the platform or vehicle line level and consider their geographical location. Non-product specific long-lived assets are tested for impairment on a reporting unit basis in GMNA and GME and tested at or within our various reporting units within our GMIO, GMSA and GM Financial segments. Fair value is determined using either the market or sales comparison approach, cost approach or anticipated cash flows discounted at a rate commensurate with the risk involved. Long-lived assets to be disposed of other than by sale are considered held for use until disposition. Product-specific assets may become impaired as a result of declines in profitability due to changes in volume, pricing or costs.
Pension and Other Postretirement Plans, Policy [Policy Text Block]	'
	Pension and Other Postretirement Plans
	Attribution, Methods and Assumptions
	The cost of benefits provided by defined benefit pension plans is recorded in the period employees provide service. The cost of pension plan amendments that provide for benefits already earned by plan participants is amortized over the expected period of benefit which may be: (1) the duration of the applicable collective bargaining agreement specific to the plan; (2) expected future working lifetime; or (3) the life expectancy of the plan participants.
	The cost of medical, dental, legal service and life insurance benefits provided through postretirement benefit plans is recorded in the period employees provide service. The cost of postretirement plan amendments that provide for benefits already earned by plan participants is amortized over the expected period of benefit which may be the average period to full eligibility or the average life expectancy of the plan participants, or the period to the plan's termination date for a plan which provides legal services.
	An expected return on plan asset methodology is utilized to calculate future pension expense for certain significant funded benefit plans. A market-related value of plan assets methodology is also utilized that averages gains and losses on the plan assets over a period of years to determine future pension expense. The methodology recognizes 60% of the difference between the fair value of assets and the expected calculated value in the first year and 10% of that difference over each of the next four years.
	The discount rate assumption is established for each of the retirement-related benefit plans at their respective measurement dates. In the U.S. we use a cash flow matching approach that uses projected cash flows matched to spot rates along a high quality corporate yield curve to determine the present value of cash flows to calculate a single equivalent discount rate.
	The benefit obligation for pension plans in Canada, the United Kingdom and Germany represents 92% of the non-U.S. pension benefit obligation at December 31, 2013. The discount rates for plans in Canada, the United Kingdom and Germany are determined using a cash flow matching approach, similar to the U.S. approach.
	In countries other than the U.S., Canada, the United Kingdom and those located in the Eurozone discount rates are established depending on the local financial markets, using a high quality yield curve based on local bonds, a yield curve adjusted to reflect local conditions or local actuarial standards.
	Plan Asset Valuation
	Cash Equivalents and Other Short-Term Investments
	Money market funds and other similar short-term investment funds are valued using the net asset value per share (NAV). Prices for short-term debt securities are received from independent pricing services or from dealers who make markets in such securities. Independent pricing services utilize matrix pricing which considers readily available inputs such as the yield or price of bonds of comparable quality, coupon, maturity and type as well as dealer supplied prices. Money market mutual funds which provide investors with the ability to redeem their interests on a daily basis and for which NAVs are publicly available are classified in Level 1. Other cash equivalents and short-term investments are classified in Level 2.
	Common and Preferred Stock
	Common and preferred stock for which market prices are readily available at the measurement date are valued at the last reported sale price or official closing price on the primary market or exchange on which they are actively traded and are classified in Level 1. Such equity securities for which the market is not considered to be active are valued via the use of observable inputs, which may include, among others, the use of adjusted market prices last available, bids or last available sales prices and/or other observable inputs and are classified in Level 2. Common and preferred stock classified in Level 3 are those privately issued securities or other issues that are valued via the use of valuation models using significant unobservable inputs that generally consider among others, aged (stale) pricing, earnings multiples, discounted cash flows and/or other qualitative and quantitative factors.
	Fixed Income Securities
	Fixed income securities are valued based on quotations received from independent pricing services or from dealers who make markets in such securities. Debt securities which are priced via the use of pricing services that utilize matrix pricing which considers readily observable inputs such as the yield or price of bonds of comparable quality, coupon, maturity and type as well as dealer supplied prices, are classified in Level 2. Fixed income securities within this category that are typically priced by dealers and pricing services via the use of proprietary pricing models which incorporate significant unobservable inputs are classified in Level 3. These inputs primarily consist of yield and credit spread assumptions, discount rates, prepayment curves, default assumptions and recovery rates.
	Investment Funds, Private Equity and Debt Investments and Real Estate Investments
	Investments in exchange traded funds, real estate investment trusts and mutual funds, for which market quotations are generally readily available, are valued at the last reported sale price, official closing price or publicly available NAV (or its equivalent) on the primary market or exchange on which they are traded and are classified in Level 1. Investments in private investment funds (including hedge funds, private equity funds and real estate funds) are generally valued based on their respective NAV (or its equivalent), as a practical expedient to estimate fair value due to the absence of readily available market prices. Investments in private investment funds, which may be fully redeemed at NAV in the near-term are generally classified in Level 2. Investments in funds, which may not be fully redeemed at NAV in the near-term, are generally classified in Level 3.
	Direct investments in private equity, private debt and real estate securities, are generally valued in good faith via the use of the market approach (earnings multiples from comparable companies) or the income approach (discounted cash flow techniques), and consider inputs such as revenue growth and gross margin assumptions, discount rates, discounts for lack of liquidity, market capitalization rates, and the selection of comparable companies. As these valuations incorporate significant unobservable inputs they are classified in Level 3.
	Fair value estimates for private investment funds, private equity, private debt and real estate investments are provided by the respective investment sponsors or investment advisers and are subsequently reviewed and approved by management. In the event management concludes a reported NAV or fair value estimate (collectively, external valuation) does not reflect fair value or is not determined as of the financial reporting measurement date, we will consider whether and when deemed necessary to make an adjustment at the balance sheet date. In determining whether an adjustment to the external valuation is required, we will review material factors that could affect the valuation, such as changes to the composition or performance of the underlying investments or comparable investments, overall market conditions, expected sale prices for private investments which are probable of being sold in the short term and other economic factors that may possibly have a favorable or unfavorable effect on the reported external valuation.
	Derivatives
	Exchange traded derivatives, such as options and futures, for which market quotations are readily available, are valued at the last reported sale price or official closing price on the primary market or exchange on which they are traded and are classified in Level 1. Over-the-counter derivatives, including but not limited to swaps, swaptions and forwards, which are typically valued through independent pricing services with observable inputs are generally classified in Level 2. Swaps that are cleared by clearinghouses or exchanges are valued with the prices provided by those venues and are generally classified in Level 2. Derivatives classified in Level 3 are typically valued via the use of pricing models which incorporate significant unobservable inputs, but may also include derivatives which are valued with the use of significant observable inputs which are not subject to corroboration. The inputs part of the model based valuations may include extrapolated or model-derived assumptions such as volatilities, yield and credit spread assumptions.
	Due to the lack of timely available market information for certain investments in the asset classes described above as well as the inherent uncertainty of valuation, reported fair values may differ from fair values that would have been used had timely available market information been available.
Other Employee Benefits Policy [Policy Text Block]	'
	Job Security Programs and Extended Disability Benefits
	We have job security programs to provide International Union, United Automobile, Aerospace and Agriculture Implement Workers of America (UAW) and Canadian Auto Workers Union (CAW) employees reduced wages and continued coverage under certain employee benefit programs depending on the employee's classification as well as the number of years of service that the employee has accrued. We also provide extended disability benefits for employees currently disabled and those in the active workforce who may become disabled in the form of income replacement, healthcare costs and life insurance premiums.
	We recognize a liability for job security programs and extended disability benefits over the expected service period using measurement provisions similar to those used to measure our other postretirement benefits (OPEB) obligations based on our best estimate of the probable liability at the measurement date. We record actuarial gains and losses immediately in earnings.
Stock Incentive Plans, Policy [Policy Text Block]	'
	Stock Incentive Plans
	We measure and record compensation expense for all share-based payment awards based on the award's estimated fair value which is the fair value of our common stock on the date of grant, or for restricted stock units (RSUs) granted prior to our public offering, the fair value of our common stock as of the date of the public offering. We record compensation cost for the awards on a straight-line basis over the entire vesting period, or for retirement eligible employees over the requisite service period. Salary stock awards granted are fully vested and nonforfeitable upon grant; therefore, compensation cost is recorded on the date of grant. The liability for stock incentive plan awards settled in cash is remeasured to fair value at the end of each reporting period.
Policy, Product Warranty and Recall Campaigns, Policy [Policy Text Block]	'
	Policy, Product Warranty and Recall Campaigns
	The estimated costs related to policy and product warranties are accrued at the time products are sold and are charged to Automotive cost of sales. These estimates are established using historical information on the nature, frequency and average cost of claims of each vehicle line or each model year of the vehicle line and assumptions about future activity and events. Revisions are made when necessary based on changes in these factors. Trends of claims are actively studied and actions are taken to improve vehicle quality and minimize claims. The estimated costs related to product recalls based on a formal campaign soliciting return of that product are accrued when they are deemed to be probable and can be reasonably estimated.
Income Taxes, Policy [Policy Text Block]	'
	Income Taxes
	The liability method is used in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements using the statutory tax rates in effect for the year in which the differences are expected to reverse. The effect on deferred tax assets and liabilities of a change in tax rates is recorded in the results of operations in the period that includes the enactment date under the law.
	Deferred income tax assets are evaluated quarterly to determine if valuation allowances are required or should be adjusted. We establish valuation allowances for deferred tax assets based on a more likely than not standard. The ability to realize deferred tax assets depends on the ability to generate sufficient taxable income within the carryback or carryforward periods provided for in the tax law for each applicable tax jurisdiction. The assessment regarding whether a valuation allowance is required or should be adjusted also considers all available positive and negative evidence factors.
	It is difficult to conclude a valuation allowance is not required when there is significant objective and verifiable negative evidence, such as cumulative losses in recent years. We utilize a rolling three years of actual and current year results as the primary measure of cumulative losses in recent years.
	Income tax expense (benefit) for the year is allocated between continuing operations and other categories of income such as Other comprehensive income (loss). In periods in which there is a pre-tax loss from continuing operations and pre-tax income in another income category, the tax benefit allocated to continuing operations is determined by taking into account the pre-tax income of other categories.
	We record uncertain tax positions on the basis of a two-step process whereby: (1) we determine whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position; and (2) for those tax positions that meet the more likely than not recognition, we recognize the largest amount of tax benefit that is greater than 50% likely to be realized upon ultimate settlement with the related tax authority. We record interest and penalties on uncertain tax positions in Income tax expense (benefit).
Foreign Currency Transactions and Translation, Policy [Policy Text Block]	'
	Foreign Currency Transactions and Translation
	The assets and liabilities of foreign subsidiaries that use the local currency as their functional currency are translated to U.S. Dollars based on the current exchange rate prevailing at each balance sheet date and any resulting translation adjustments are included in Accumulated other comprehensive loss. The assets and liabilities of foreign subsidiaries whose local currency is not their functional currency are remeasured from their local currency to their functional currency and then translated to U.S. Dollars. Revenues and expenses are translated into U.S. Dollars using the average exchange rates prevailing for each period presented.
	Gains and losses arising from foreign currency transactions and the effects of remeasurements discussed in the preceding paragraph are recorded in Automotive cost of sales and GM Financial operating and other expenses unless related to Automotive debt, which are recorded in Interest income and other non-operating income, net. Foreign currency transaction and remeasurement losses were $350 million, $117 million and $55 million in the years ended December 31, 2013, 2012 and 2011.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	Recently Adopted Accounting Principles
	On January 1, 2013 we adopted Accounting Standards Update (ASU) 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income." This ASU does not change current requirements for reporting net income or other comprehensive income (OCI) in financial statements; rather, it requires certain disclosures of the amount of reclassifications of items from OCI to net income by component. The related disclosures are presented in Note 21.
	Accounting Standards Not Yet Adopted
	In July 2013 the FASB issued ASU 2013-11, “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists” to eliminate diversity in practice. This ASU requires that companies net their unrecognized tax benefits against all same-jurisdiction net operating losses or tax credit carryforwards that would be used to settle the position with a tax authority. This new guidance is effective prospectively for annual reporting periods beginning on or after December 15, 2013 and interim periods therein. The adoption of this ASU will not have a material effect on our consolidated financial statements because it aligns with our current presentation.

Significant_Accounting_Policie2

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Allowance for Doubtful Accounts [Table Text Block]	'
	The following table summarizes activity in our allowance for doubtful accounts and notes receivable (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Balance at beginning of period	$	311		$	331		$	252
	Amounts charged (credited) to costs and expenses	61			(10		)	159
	Deductions	(24		)	(46		)	(83		)
	Other	(4		)	36			3
	Balance at end of period	$	344		$	311		$	331

Acquisition_of_Businesses_Tabl

Acquisition of Businesses (Tables) (Ally International Operations - Europe and Latin America [Member])	12 Months Ended
	Dec. 31, 2013
Ally International Operations - Europe and Latin America [Member]	'
Business Acquisition [Line Items]	'
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	'
	The following table summarizes the aggregate consideration and the assets acquired and liabilities assumed at the acquisition dates before eliminations for net intercompany receivables of approximately $300 million (dollars in millions):
	Cash	$	607
	Restricted cash	906
	Finance receivables	15,144
	Other assets, including identifiable intangible assets	769
	Secured and unsecured debt	(12,833		)
	Other liabilities	(1,483		)
	Identifiable net assets acquired	3,110
	Goodwill resulting from the acquisitions	144
	Aggregate consideration	$	3,254
Business Acquisition, Pro Forma Information [Table Text Block]	'
	The following table summarizes the actual amounts of revenue and earnings included in our consolidated financial statements as well as certain pro forma revenue and earnings of the combined entity had these acquisitions occurred as of January 1, 2012, without consideration of historical transactions between the acquired operations and us, as it is impracticable to obtain such information (dollars in millions):
		Acquired Operations' Amounts Included in Results For Year Ended December 31, 2013			Pro Forma-Combined for Years Ended
					31-Dec-13		31-Dec-12
	Total net sales and revenue	$	968		$	156,284	$	154,161
	Net income attributable to stockholders	$	109		$	5,492	$	6,412

GM_Financial_Receivables_net_T

GM Financial Receivables, net (Tables)	12 Months Ended
	Dec. 31, 2013
Financial Receivables [Line Items]	'
Allowance for Doubtful Accounts [Table Text Block]	'
	The following table summarizes activity in our allowance for doubtful accounts and notes receivable (dollars in millions):
		Years Ended December 31,
		2013			2012				2011
	Balance at beginning of period	$	311		$	331			$	252
	Amounts charged (credited) to costs and expenses	61			(10		)		159
	Deductions	(24		)	(46		)		(83		)
	Other	(4		)	36				3
	Balance at end of period	$	344		$	311			$	331
GM Financial [Member]	'
Financial Receivables [Line Items]	'
Finance Receivable, Net [Table Text Block]	'
	The following table summarizes the components of consumer and commercial finance receivables, net (dollars in millions):
		December 31, 2013											December 31, 2012
		Consumer			Commercial				Total				Consumer			Commercial			Total
	Pre-acquisition finance receivables, outstanding amount	$	1,294		$	—			$	1,294			$	2,162		$	—		$	2,162
	Pre-acquisition finance receivables, carrying amount	$	1,174		$	—			$	1,174			$	1,958		$	—		$	1,958
	Post-acquisition finance receivables, net of fees	21,956			6,050				28,006				8,831			560			9,391
	Finance receivables	23,130			6,050				29,180				10,789			560			11,349
	Less: allowance for loan losses	(497		)	(51		)		(548		)		(345		)	(6		)	(351		)
	GM Financial receivables, net	$	22,633		$	5,999			$	28,632			$	10,444		$	554		$	10,998
	Fair value of GM Financial receivables, net								$	28,668									$	11,313
Accretable Yield [Table Text Block]	'
	The following table summarizes the activity for accretable yield (dollars in millions):
		Years Ended December 31,
		2013			2012
	Balance at beginning of period	$	404		$	737
	Ally Financial international operations acquisition	127
	Accretion of accretable yield	(342		)	(503		)
	Transfer from non-accretable difference	74			170
	Effect of foreign currency	(8		)	—
	Balance at end of period	$	255		$	404
Allowance for Doubtful Accounts [Table Text Block]	'
	The following table summarizes activity for the allowance for loan losses on consumer and commercial finance receivables (dollars in millions):
		Years Ended December 31,(a)
		2013			2012				2011
	Balance at beginning of period	$	351		$	179			$	26
	Provision for loan losses	475			304				178
	Charge-offs	(643		)	(304		)		(66		)
	Recoveries	362			172				41
	Effect of foreign currency	3			—				—
	Balance at end of period	$	548		$	351			$	179
	________
	(a)	The balances and activity of the allowance for commercial loan losses included in the amounts at and for the years ended December 31, 2013 and 2012 were insignificant.
GM Financial [Member] | Consumer Finance Receivable [Member]	'
Financial Receivables [Line Items]	'
Consumer Finance Receivables Delinquency [Table Text Block]	'
	The following table summarizes the contractual amount of delinquent contracts, which is not materially different from the recorded investment of the consumer finance receivables (dollars in millions):
		December 31, 2013						December 31, 2012
		Amount			Percent of Contractual Amount Due			Amount				Percent of Contractual Amount Due
	Delinquent contracts
	31-to-60 days	$	952		4.1	%		$	672			6.1	%
	Greater-than-60 days	408			1.7	%		230				2.1	%
	Total finance receivables more than 30 days delinquent	1,360			5.8	%		902				8.2	%
	In repossession	41			0.2	%		31				0.3	%
	Total finance receivables more than 30 days delinquent or in repossession	$	1,401		6	%		$	933			8.5	%
Troubled Debt Restructurings on Finance Receivables [Table Text Block]	'
	The following table summarizes the outstanding recorded investment for consumer finance receivables that are considered to be TDRs and the related allowance (dollars in millions):
		December 31, 2013			December 31, 2012
	Outstanding recorded investment	$	767		$	228
	Less: allowance for loan losses	(103		)	(32		)
	Outstanding recorded investment, net of allowance	$	664		$	196
	Unpaid principal balance	$	779		$	232
GM Financial [Member] | Commercial Finance Receivables [Member]	'
Financial Receivables [Line Items]	'
Financing Receivable Credit Quality Indicators [Table Text Block]	'
	The following table summarizes the credit risk profile by dealer grouping of the commercial finance receivables (dollars in millions):
		December 31, 2013			December 31, 2012
	Group I - Dealers with strong to superior financial metrics	$	549		$	99
	Group II - Dealers with fair to favorable financial metrics	1,460			278
	Group III - Dealers with marginal to weak financial metrics	1,982			171
	Group IV - Dealers with poor financial metrics	1,462			12
	Group V - Dealers warranting special mention due to potential weaknesses	385
	Group VI - Dealers with loans classified as substandard, doubtful or impaired	212
		$	6,050		$	560

Marketable_Securities_Tables

Marketable Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Marketable Securities [Abstract]	'
Available-for-sale Securities [Table Text Block]	'
	The following table summarizes information regarding marketable securities (dollars in millions):
				December 31, 2013						December 31, 2012
		Fair Value Level		Cost				Fair Value		Cost		Fair Value
	Cash and cash equivalents
	Available-for-sale securities
	U.S. government and agencies	2		$	1,437			$	1,437	$	4,190	$	4,190
	Sovereign debt	2		515				515		—		—
	Money market funds	1		1,262				1,262		1,799		1,799
	Corporate debt	2		7,598				7,598		3,222		3,222
	Total available-for-sale securities			$	10,812			10,812		$	9,211	9,211
	Trading securities
	Sovereign debt	2						—				1,408
	Corporate debt	2						25				—
	Total trading securities							25				1,408
	Total marketable securities classified as cash equivalents							10,837				10,619
	Cash, cash equivalents and time deposits							9,184				7,803
	Total cash and cash equivalents							$	20,021			$	18,422
	Marketable securities - current
	Available-for-sale securities
	U.S. government and agencies	2		$	5,343			$	5,344	$	1,231	$	1,231
	Corporate debt	2		1,867				1,869		2,465		2,505
	Equity and sovereign debt	1 & 2		22				22		30		51
	Total available-for-sale securities			$	7,232			7,235		$	3,726	3,787
	Trading securities - Sovereign debt	2						1,737				5,201
	Total marketable securities - current							8,972				8,988
	Marketable securities - non-current
	Available-for-sale securities - Investment in Peugeot S.A.	1		$	—			—		$	179	179
	Total marketable securities							$	8,972			$	9,167
	Restricted cash and marketable securities
	Available-for-sale securities
	Money market funds	1		$	897			$	897	$	933	$	933
	Other	2		34				35		198		199
	Total marketable securities classified as restricted cash and marketable securities			$	931			932		$	1,131	1,132
	Restricted cash and cash equivalents and time deposits							1,144				236
	Total restricted cash and marketable securities							$	2,076			$	1,368
Trading Securities (and Certain Trading Assets) [Table Text Block]	'
	The following table summarizes information regarding marketable securities (dollars in millions):
				December 31, 2013						December 31, 2012
		Fair Value Level		Cost				Fair Value		Cost		Fair Value
	Cash and cash equivalents
	Available-for-sale securities
	U.S. government and agencies	2		$	1,437			$	1,437	$	4,190	$	4,190
	Sovereign debt	2		515				515		—		—
	Money market funds	1		1,262				1,262		1,799		1,799
	Corporate debt	2		7,598				7,598		3,222		3,222
	Total available-for-sale securities			$	10,812			10,812		$	9,211	9,211
	Trading securities
	Sovereign debt	2						—				1,408
	Corporate debt	2						25				—
	Total trading securities							25				1,408
	Total marketable securities classified as cash equivalents							10,837				10,619
	Cash, cash equivalents and time deposits							9,184				7,803
	Total cash and cash equivalents							$	20,021			$	18,422
	Marketable securities - current
	Available-for-sale securities
	U.S. government and agencies	2		$	5,343			$	5,344	$	1,231	$	1,231
	Corporate debt	2		1,867				1,869		2,465		2,505
	Equity and sovereign debt	1 & 2		22				22		30		51
	Total available-for-sale securities			$	7,232			7,235		$	3,726	3,787
	Trading securities - Sovereign debt	2						1,737				5,201
	Total marketable securities - current							8,972				8,988
	Marketable securities - non-current
	Available-for-sale securities - Investment in Peugeot S.A.	1		$	—			—		$	179	179
	Total marketable securities							$	8,972			$	9,167
	Restricted cash and marketable securities
	Available-for-sale securities
	Money market funds	1		$	897			$	897	$	933	$	933
	Other	2		34				35		198		199
	Total marketable securities classified as restricted cash and marketable securities			$	931			932		$	1,131	1,132
	Restricted cash and cash equivalents and time deposits							1,144				236
	Total restricted cash and marketable securities							$	2,076			$	1,368
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	'
	The following table summarizes information regarding marketable securities (dollars in millions):
				December 31, 2013						December 31, 2012
		Fair Value Level		Cost				Fair Value		Cost		Fair Value
	Cash and cash equivalents
	Available-for-sale securities
	U.S. government and agencies	2		$	1,437			$	1,437	$	4,190	$	4,190
	Sovereign debt	2		515				515		—		—
	Money market funds	1		1,262				1,262		1,799		1,799
	Corporate debt	2		7,598				7,598		3,222		3,222
	Total available-for-sale securities			$	10,812			10,812		$	9,211	9,211
	Trading securities
	Sovereign debt	2						—				1,408
	Corporate debt	2						25				—
	Total trading securities							25				1,408
	Total marketable securities classified as cash equivalents							10,837				10,619
	Cash, cash equivalents and time deposits							9,184				7,803
	Total cash and cash equivalents							$	20,021			$	18,422
	Marketable securities - current
	Available-for-sale securities
	U.S. government and agencies	2		$	5,343			$	5,344	$	1,231	$	1,231
	Corporate debt	2		1,867				1,869		2,465		2,505
	Equity and sovereign debt	1 & 2		22				22		30		51
	Total available-for-sale securities			$	7,232			7,235		$	3,726	3,787
	Trading securities - Sovereign debt	2						1,737				5,201
	Total marketable securities - current							8,972				8,988
	Marketable securities - non-current
	Available-for-sale securities - Investment in Peugeot S.A.	1		$	—			—		$	179	179
	Total marketable securities							$	8,972			$	9,167
	Restricted cash and marketable securities
	Available-for-sale securities
	Money market funds	1		$	897			$	897	$	933	$	933
	Other	2		34				35		198		199
	Total marketable securities classified as restricted cash and marketable securities			$	931			932		$	1,131	1,132
	Restricted cash and cash equivalents and time deposits							1,144				236
	Total restricted cash and marketable securities							$	2,076			$	1,368
Investments Classified by Contractual Maturity Date [Table Text Block]	'
	The following table summarizes the amortized cost and the fair value of investments classified as available-for-sale by contractual maturity at December 31, 2013 (dollars in millions):
		Amortized Cost				Fair Value
	Due in one year or less	$	14,879			$	14,881
	Due after one year through five years	1,937				1,939
	Total contractual maturities of available-for-sale securities	$	16,816			$	16,820

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Components of Inventory [Table Text Block]	'
	The following table summarizes the components of Inventories (dollars in millions):
		December 31, 2013		December 31, 2012
	Productive material, supplies and work in process	$	5,872	$	6,560
	Finished product, including service parts	8,167		8,154
	Total inventories	$	14,039	$	14,714

Equipment_on_Operating_Leases_1

Equipment on Operating Leases, net (Tables) (Vehicles [Member])	12 Months Ended
	Dec. 31, 2013
Automotive [Member]	'
Property Subject to or Available for Operating Lease [Line Items]	'
Schedule of Equipment on Operating Leases [Table Text Block]	'
	The following table summarizes information related to Equipment on operating leases, net (dollars in millions):
		December 31, 2013			December 31, 2012
	Equipment on operating leases	$	2,605		$	1,946
	Less: accumulated depreciation	(207		)	(164		)
	Equipment on operating leases, net	$	2,398		$	1,782
Schedule Of Equipment on Operating Leases Depreciation and Impairment [Table Text Block]	'
	The following table summarizes depreciation expense and impairment charges related to Equipment on operating leases, net (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Depreciation expense	$	218		$	227		$	431
	Impairment charges	$	168		$	181		$	151
GM Financial [Member]	'
Property Subject to or Available for Operating Lease [Line Items]	'
Schedule of Equipment on Operating Leases [Table Text Block]	'
	The following table summarizes GM Financial equipment on operating leases, net (dollars in millions):
		December 31, 2013			December 31, 2012
	GM Financial equipment on operating leases	$	4,025		$	1,910
	Less: accumulated depreciation	(642		)	(261		)
	GM Financial equipment on operating leases, net	$	3,383		$	1,649
Schedule of Future Minimum Rental Payments Receivable for Operating Leases [Table Text Block]	'
	The following table summarizes minimum rental payments due to GM Financial as lessor under operating leases (dollars in millions):
		2014			2015			2016		2017		2018
	Minimum rental receipts under operating leases	$	628		$	512		$	266	$	43	$	4

Equity_In_Net_Assets_Of_Noncon1

Equity In Net Assets Of Nonconsolidated Affiliates (Tables)	12 Months Ended
	Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]	'
Schedule of Equity Income [Table Text Block]	'
	The following table summarizes information regarding Equity income and gain on investments (dollars in millions):
		Years Ended December 31,
		2013				2012			2011
	China joint ventures (China JVs)	$	1,763			$	1,521		$	1,511
	New Delphi (including gain on disposition)	—				—			1,727
	Others (including gain on acquisition of GM India)	47				41			(46		)
	Total equity income and gain on investments	$	1,810			$	1,562		$	3,192
Schedule of Equity Method Investments [Table Text Block]	'
	The following table summarizes our direct ownership interests in China JVs:
		December 31, 2013			December 31, 2012
	Shanghai General Motors Co., Ltd. (SGM)	50	%		50	%
	Shanghai GM Norsom Motor Co., Ltd. (SGM Norsom)	25	%		25	%
	Shanghai GM Dong Yue Motors Co., Ltd. (SGM DY)	25	%		25	%
	Shanghai GM Dong Yue Powertrain (SGM DYPT)	25	%		25	%
	SAIC-GM-Wuling Automobile Co., Ltd.	44	%		44	%
	FAW-GM Light Duty Commercial Vehicle Co., Ltd.	50	%		50	%
	Pan Asia Technical Automotive Center Co., Ltd.	50	%		50	%
	Shanghai OnStar Telematics Co., Ltd. (Shanghai OnStar)	40	%		40	%
	Shanghai Chengxin Used Car Operation and Management Co., Ltd. (Shanghai Chengxin Used Car)	33	%		33	%
	SAIC General Motors Sales Co., Ltd. (SGMS)	49	%		49	%
Investments in and Advances to Affiliates [Table Text Block]	'
	The following table summarizes the carrying amount of investments in nonconsolidated affiliates (dollars in millions):
		December 31, 2013				December 31, 2012
	China JVs	$	7,851			$	6,579
	Other investments	243				304
	Total equity in net assets of nonconsolidated affiliates	$	8,094			$	6,883
Summarized Financial Data of Equity Method Investee [Table Text Block]	'
	The following tables present summarized financial data for all of our nonconsolidated affiliates (dollars in millions):
		31-Dec-13										31-Dec-12
		China JVs				Others			Total			China JVs		Others		Total
	Summarized Balance Sheet Data
	Current assets	$	14,666			$	2,234		$	16,900		$	11,759	$	2,642	$	14,401
	Non-current assets	8,187				1,458			9,645			6,766		1,507		8,273
	Total assets	$	22,853			$	3,692		$	26,545		$	18,525	$	4,149	$	22,674
	Current liabilities	$	14,019			$	1,859		$	15,878		$	12,612	$	1,893	$	14,505
	Non-current liabilities	1,065				511			1,576			756		758		1,514
	Total liabilities	$	15,084			$	2,370		$	17,454		$	13,368	$	2,651	$	16,019
	Non-controlling interests	$	1,040			$	—		$	1,040		$	1,055	$	1	$	1,056
		Years Ended December 31,
		2013				2012			2011
	Summarized Operating Data
	China JV's net sales	$	38,767			$	33,364		$	30,511
	Others' net sales	1,830				3,963			4,242
	Total net sales	$	40,597			$	37,327		$	34,753
	China JV's net income	$	3,685			$	3,198		$	3,203
	Others' net income (loss)	50				(23		)	(13		)
	Total net income	$	3,735			$	3,175		$	3,190
Equity Method Investee [Member]	'
Schedule of Equity Method Investments [Line Items]	'
Transactions with Nonconsolidated Affiliates [Table Text Block]	'
	The following tables summarize the effects of transactions with nonconsolidated affiliates (dollars in millions):
		Years Ended December 31,
		2013				2012			2011
	Results of Operations
	Automotive sales and revenue	$	2,724			$	2,572		$	3,266
	Automotive purchases, net	$	724			$	497		$	1,044
	Interest income and other non-operating income, net	$	19			$	184		$	34
		December 31, 2013				December 31, 2012
	Financial Position
	Accounts and notes receivable, net	$	756			$	1,668
	Accounts payable	$	183			$	167
	Deferred revenue and customer deposits	$	32			$	46
		Years Ended December 31,
		2013				2012			2011
	Cash Flows
	Operating	$	3,607			$	3,385		$	3,624
	Investing	$	(13	)		$	(41	)	$	(27	)

Property_net_Tables

Property, net (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment [Table Text Block]	'
	The following table summarizes the components of Property, net (dollars in millions):
		Estimated Useful Lives in Years		December 31, 2013				December 31, 2012
	Land			$	1,868			$	2,107
	Buildings and improvements	May-40		4,971				4,601
	Machinery and equipment	27-Mar		15,222				12,720
	Construction in progress			2,644				3,018
	Real estate, plants and equipment			24,705				22,446
	Less: accumulated depreciation			(6,787		)		(5,556		)
	Real estate, plants and equipment, net			17,918				16,890
	Special tools, net	15-Jan		7,949				7,306
	Total property, net			$	25,867			$	24,196
Capitalized Software [Table Text Block]	'
	The following table summarizes the amount of capitalized software included in Property, net (dollars in millions):
		December 31, 2013				December 31, 2012
	Capitalized software in use, net	$	580			$	465
	Capitalized software in the process of being developed	$	50			$	108
Depreciation Amortization and Impairment on Property Plant and Equipment [Table Text Block]	'
	The following table summarizes depreciation, impairment charges and amortization expense related to Property, net, recorded in Automotive cost of sales, GM Financial operating and other expenses, and Automotive selling, general and administrative expense (dollars in millions):
		Years Ended December 31,
		2013				2012				2011
	Depreciation and amortization expense	$	3,959			$	3,888			$	3,604
	Impairment charges(a)	901				3,793				81
	Depreciation, impairment charges and amortization expense	$	4,860			$	7,681			$	3,685
	Capitalized software amortization expense(b)	$	244			$	209			$	203
	__________
	(a)	Includes GMIO assets whose fair value was $131 million at December 31, 2013. Includes GME assets whose fair value was $408 million at December 31, 2012. Also includes other assets whose fair value was determined to be $0 in the years ended December 31, 2013, 2012 and 2011 measured utilizing Level 3 inputs. Fair value measurements of the non-GMIO and non-GME asset group long-lived assets utilized projected cash flows discounted at a rate commensurate with the perceived business risks related to the assets involved.
	(b)	Included in total depreciation, impairment charges and amortization expense.
Property, Plant and Equipment [Member] | Level 3 [Member]	'
Property, Plant and Equipment [Line Items]	'
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	'
	The following table summarizes the significant Level 3 inputs for real and personal property measurements:
		Valuation Technique(s)		Unobservable Input(s)		Range
	GM India personal property	Market approach		Economic obsolescence(a)		72% - 100%
	Holden real property	Income approach		Holding period(b)		0 - 3 years
				Discount rate(c)		11% - 12%
	GME real property	Market approach		Demolition costs(d)		6% - 23%
		Cost approach		Holding period(b)		0 - 4 years
		Income approach		Discount rate(c)		11.2% - 14.5%
	GME personal property	Market approach		Physical deterioration(e)		52% - 69%
		Cost approach		Functional obsolescence(f)		8% - 28%
				Economic obsolescence(a)		17% - 23%
	__________
	(a)	Represents estimated loss in asset value caused by factors external to the asset such as legislative enactments, changes in use, social change and change in supply and demand.
	(b)	Represents estimated marketing period for each property which dictates the amount of property specific holding costs to be incurred such as real estate taxes.
	(c)	Represents the discount rate for the specific property based on local market sources and available benchmarking data.
	(d)	Represents estimated gross cost to demolish and clear the structures on the property as a percentage of replacement cost new.
	(e)	Represents estimated loss in asset value due to wear and tear, action of the elements and other physical factors that reduce the life and serviceability of the asset.
	(f)	Represents estimated loss in asset value caused by inefficiencies and inadequacies of the asset itself.

Goodwill_Tables

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill [Abstract]	'
Schedule of Goodwill [Table Text Block]	'
	The following table summarizes the changes in the carrying amounts of Goodwill (dollars in millions):
		GMNA			GME			GMIO			GMSA			Total Automotive			GM Financial		Total
	Balance at January 1, 2012	$	26,399		$	581		$	610		$	151		$	27,741		$	1,278	$	29,019
	Impairment charges	(26,399		)	(590		)	(156		)	—			(27,145		)	—		(27,145		)
	Goodwill from business combinations(a)	—			—			61			—			61			—		61
	Effect of foreign currency and other	—			9			34			(5		)	38			—		38
	Balance at December 31, 2012	—			—			549			146			695			1,278		1,973
	Impairment charges	—			—			(541		)	—			(541		)	—		(541		)
	Goodwill from business combinations(a)	—			—			—			10			10			144		154
	Effect of foreign currency and other	—			—			(8		)	(18		)	(26		)	—		(26		)
	Balance at December 31, 2013	$	—		$	—		$	—		$	138		$	138		$	1,422	$	1,560
	Accumulated impairment charges at January 1, 2012	$	—		$	(2,482	)	$	(270	)	$	—		$	(2,752	)	$	—	$	(2,752	)
	Accumulated impairment charges at December 31, 2012	$	(26,399	)	$	(3,072	)	$	(426	)	$	—		$	(29,897	)	$	—	$	(29,897	)
	Accumulated impairment charges at December 31, 2013	$	(26,399	)	$	(3,072	)	$	(967	)	$	—		$	(30,438	)	$	—	$	(30,438	)
	_________
	(a)	Refer to Note 3 for additional information concerning the acquisitions.

Intangible_Assets_net_Tables

Intangible Assets, net (Tables)	12 Months Ended
	Dec. 31, 2013
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]	'
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
	The following table summarizes the components of Intangible assets, net (dollars in millions):
		December 31, 2013							December 31, 2012
		Gross Carrying Amount			Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	Technology and intellectual property	$	8,210		$	7,308	$	902	$	7,775	$	6,320	$	1,455
	Brands	4,466			559		3,907		4,464		431		4,033
	Dealer network and customer relationships	1,108			364		744		1,375		327		1,048
	Favorable contracts and other	345			326		19		384		286		98
	Total amortizing intangible assets	14,129			8,557		5,572		13,998		7,364		6,634
	Nonamortizing in process research and development	96					96		175				175
	Total intangible assets	$	14,225		$	8,557	$	5,668	$	14,173	$	7,364	$	6,809
Summary of Amortization Expense and Impairment Charges Related to Intangible Assets [Table Text Block]	'
	The following table summarizes the amortization expense and impairment charges related to Intangible assets, net (dollars in millions):
		Years Ended December 31,
		2013			2012		2011
	Amortization expense	$	1,281		$	1,568	$	1,804
	Impairment charges	$	523		$	1,755	$	—
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	'
	The following table summarizes estimated amortization expense related to Intangible assets, net in each of the next five years (dollars in millions):
		2014			2015		2016		2017		2018
	Estimated amortization expense	$	672		$	330	$	310	$	305	$	300
Trade Names [Member] | Level 3 [Member] | GME [Member]	'
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]	'
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	'
	The following table summarizes the significant Level 3 inputs for brand intangible assets measurements:
			Valuation Technique	Unobservable Input(s)		Percentage
	Brand intangible assets		Income approach	Long-term growth rate		0.50%
				Pre-tax royalty rate(a)		0.14%
				Discount rate(b)		21.25%
	__________
	(a)	Represents estimated savings realized from owning the asset or having the royalty-free right to use the asset.
	(b)	Represents WACC adjusted for perceived business risks related to these intangible assets.

Variable_Interest_Entities_Tab

Variable Interest Entities (Tables) (Consolidated VIE [Member], GM Financial [Member])	12 Months Ended
	Dec. 31, 2013
Consolidated VIE [Member] | GM Financial [Member]	'
Variable Interest Entity [Line Items]	'
Schedule of Variable Interest Entities [Table Text Block]	'
	The following table summarizes the assets and liabilities related to GM Financial's consolidated VIEs (dollars in millions):
		December 31, 2013		December 31, 2012
	Restricted cash	$	1,523	$	744
	Securitized Assets	$	23,584	$	10,442
	Securitization notes payable and other credit facilities	$	19,448	$	9,378

Accrued_Liabilities_Other_Liab1

Accrued Liabilities, Other Liabilities and Deferred Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Accrued Liabilities and Other Liabilities [Abstract]	'
Accrued Liabilities and Other Liabilities and Deferred IncomeTaxes [Table Text Block]	'
	The following table summarizes the components of Accrued liabilities and Other liabilities and deferred income taxes (dollars in millions):
		December 31, 2013			December 31, 2012
	Current
	Dealer and customer allowances, claims and discounts	$	7,919		$	7,722
	Deposits primarily from rental car companies	4,713			4,250
	Deferred revenue	1,276			1,326
	Policy, product warranty and recall campaigns	2,559			2,919
	Payrolls and employee benefits excluding postemployment benefits	2,285			2,144
	Other	5,881			4,947
	Total accrued liabilities	$	24,633		$	23,308
	Non-current
	Deferred revenue	$	1,249		$	1,169
	Policy, product warranty and recall campaigns	4,655			4,285
	Employee benefits excluding postemployment benefits	1,192			1,359
	Postemployment benefits including facility idling reserves	1,216			1,518
	Other	5,041			4,838
	Total other liabilities and deferred income taxes	$	13,353		$	13,169
Policy Product Warranty And Recall Campaigns Liabilities [Table Text Block]	'
	The following table summarizes activity for policy, product warranty and recall campaigns (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Beginning balance	$	7,204		$	6,600		$	6,789
	Warranties issued and assumed in period	3,181			3,394			3,062
	Payments	(3,063		)	(3,393		)	(3,740		)
	Adjustments to pre-existing warranties	123			539			565
	Effect of foreign currency and other	(231		)	64			(76		)
	Ending balance	$	7,214		$	7,204		$	6,600

ShortTerm_and_LongTerm_Debt_Ta

Short-Term and Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Interest Expense [Table Text Block]	'
	The following table summarizes interest expense (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Automotive	$	334		$	489		$	540
	Automotive Financing - GM Financial	715			283			204
	Total interest expense	$	1,049		$	772		$	744
Schedule of Maturities of Long-term Debt [Table Text Block]	'
	The following table summarizes contractual maturities including capital leases at December 31, 2013 (dollars in millions):
		Automotive			Automotive Financing(a)			Total
	2014	$	543		$	13,594		$	14,137
	2015	147			6,473			6,620
	2016	109			4,199			4,308
	2017	496			2,337			2,833
	2018	1,582			1,693			3,275
	Thereafter	5,025			750			5,775
		$	7,902		$	29,046		$	36,948
	________
	(a)	Secured debt, bank lines and other unsecured debt are based on expected payoff date. Senior notes principal amounts are based on maturity.
Automotive [Member]	'
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]	'
	The following table summarizes the components of our short-term debt and long-term debt (dollars in millions):
		December 31, 2013			December 31, 2012
	Secured debt	$	320		$	1,182
	Unsecured debt
	Senior unsecured notes	4,500			—
	Canadian Health Care Trust (HCT) notes	—			1,239
	Other unsecured debt	1,352			1,713
	Total unsecured debt	5,852			2,952
	Capital leases	965			1,038
	Total automotive debt(a)	7,137			5,172
	Less: short-term debt and current portion of long-term debt	564			1,748
	Total long-term debt	$	6,573		$	3,424
	Fair value of automotive debt(b)	$	6,837		$	5,298
	Available under credit facility agreements	$	10,404		$	11,119
	Interest rate range on outstanding debt(c)	0.0-19.0%			0.0-19.0%
	Weighted-average interest rate on outstanding short-term debt(c)	9		%	3.7		%
	Weighted-average interest rate on outstanding long-term debt(c)	3.8		%	4		%
	__________
	(a)	Net of a $765 million and $1.1 billion net discount at December 31, 2013 and 2012.
	(b)	The fair value of debt includes $6.8 billion and $4.1 billion measured utilizing Level 2 inputs at December 31, 2013 and 2012 and $1.2 billion measured utilizing Level 3 inputs at December 31, 2012.
	(c)	Includes coupon rates on debt denominated in various foreign currencies and interest free loans.
GM Financial [Member]	'
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]	'
	The following table summarizes the carrying amount and fair value of debt (dollars in millions):
			December 31, 2013						December 31, 2012
			Carrying Amount			Fair Value(a)			Carrying Amount		Fair Value(a)
	Secured
	Revolving credit facilities		$	9,000		$	8,995		$	354	$	354
	Securitization notes payable(b)		13,073			13,175			9,024		9,171
	Total secured		22,073			22,170			9,378		9,525
	Unsecured
	Senior notes		4,000			4,106			1,500		1,620
	Bank lines and other unsecured debt		2,973			2,972			—		—
	Total unsecured		6,973			7,078			1,500		1,620
	Total GM Financial debt		$	29,046		$	29,248		$	10,878	$	11,145
	_______
	(a)	The fair value of debt includes $23.0 billion and $11.1 billion measured utilizing Level 2 inputs at December 31, 2013 and 2012 and $6.2 billion measured utilizing Level 3 inputs at December 31, 2013. For revolving credit facilities with variable interest rates and maturities of one year or less, the carrying amount is considered to be a reasonable estimate of fair value. The fair value of other secured debt and the unsecured debt is based on quoted market prices, when available. If quoted market prices are not available, the market value is estimated by discounting future net cash flows expected to be paid using current risk-adjusted rates.
	(b)	Includes a private securitization that GM Financial used observable and unobservable inputs to estimate fair value. Unobservable inputs are related to the structuring of the debt into various classes, which is based on public securitizations issued during the same time frame. Observable inputs are used by obtaining active prices based on the securitization debt issued during the same time frame. These observable inputs are then used to create expected market prices (unobservable inputs), which are then applied to the debt classes in order to estimate fair value which would approximate market value.

Pensions_And_Other_Postretirem1

Pensions And Other Postretirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]	'
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]	'
	The following table summarizes the change in benefit obligations and related plan assets (dollars in millions):
		Year Ended December 31, 2013														Year Ended December 31, 2012
		Pension Benefits								Other Benefits						Pension Benefits						Other Benefits
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Change in benefit obligations
	Beginning benefit obligation	$	82,110			$	29,301			$	6,271		$	1,528		$	108,562		$	25,765		$	5,822		$	1,490
	Service cost	298				394				24			13			452			383			23			16
	Interest cost	2,837				1,010				217			57			4,055			1,110			234			63
	Plan participants' contributions	—				4				29			2			—			7			4			1
	Amendments	—				(4		)		—			(4		)	(32		)	139			—			(52		)
	Actuarial (gains) losses	(7,661		)		(1,009		)		(757		)	(210		)	8,432			2,774			622			13
	Benefits paid	(5,719		)		(1,683		)		(422		)	(53		)	(8,422		)	(1,551		)	(436		)	(55		)
	Foreign currency translation adjustments	—				(528		)		—			(98		)	—			682			—			30
	Business combinations	—				128				—			—			—			—			—			—
	Curtailments, settlements and other	(385		)		(85		)		(252		)	3			(30,937		)	(8		)	2			22
	Ending benefit obligation	71,480				27,528				5,110			1,238			82,110			29,301			6,271			1,528
	Change in plan assets
	Beginning fair value of plan assets	68,085				15,541				—			—			94,349			14,541			—			—
	Actual return on plan assets	2,107				988				—			—			10,332			1,344			—			—
	Employer contributions	128				886				393			51			2,420			855			432			54
	Plan participants' contributions	—				4				29			2			—			7			4			1
	Benefits paid	(5,719		)		(1,683		)		(422		)	(53		)	(8,422		)	(1,551		)	(436		)	(55		)
	Foreign currency translation adjustments	—				(692		)		—			—			—			389			—			—
	Business combinations	—				26				—			—			—			—			—			—
	Settlements	(435		)		(87		)		—			—			(30,629		)	(207		)	—			—
	Other	—				3				—			—			35			163			—			—
	Ending fair value of plan assets	64,166				14,986				—			—			68,085			15,541			—			—
	Ending funded status	$	(7,314	)		$	(12,542	)		$	(5,110	)	$	(1,238	)	$	(14,025	)	$	(13,760	)	$	(6,271	)	$	(1,528	)
	Amounts recorded in the consolidated balance sheets
	Non-current assets	$	—			$	137			$	—		$	—		$	—		$	73		$	—		$	—
	Current liabilities	(131		)		(379		)		(368		)	(83		)	(95		)	(343		)	(406		)	(84		)
	Non-current liabilities	(7,183		)		(12,300		)		(4,742		)	(1,155		)	(13,930		)	(13,490		)	(5,865		)	(1,444		)
	Net amount recorded	$	(7,314	)		$	(12,542	)		$	(5,110	)	$	(1,238	)	$	(14,025	)	$	(13,760	)	$	(6,271	)	$	(1,528	)
	Amounts recorded in Accumulated other comprehensive loss
	Net actuarial gain (loss)	$	4,747			$	(3,379	)		$	(542	)	$	47		$	(1,434	)	$	(4,786	)	$	(1,573	)	$	(188	)
	Net prior service (cost) credit	38				(87		)		19			91			42			(111		)	135			118
	Total recorded in Accumulated other comprehensive loss	$	4,785			$	(3,466	)		$	(523	)	$	138		$	(1,392	)	$	(4,897	)	$	(1,438	)	$	(70	)
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]	'
	The following table summarizes the change in benefit obligations and related plan assets (dollars in millions):
		Year Ended December 31, 2013														Year Ended December 31, 2012
		Pension Benefits								Other Benefits						Pension Benefits						Other Benefits
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Change in benefit obligations
	Beginning benefit obligation	$	82,110			$	29,301			$	6,271		$	1,528		$	108,562		$	25,765		$	5,822		$	1,490
	Service cost	298				394				24			13			452			383			23			16
	Interest cost	2,837				1,010				217			57			4,055			1,110			234			63
	Plan participants' contributions	—				4				29			2			—			7			4			1
	Amendments	—				(4		)		—			(4		)	(32		)	139			—			(52		)
	Actuarial (gains) losses	(7,661		)		(1,009		)		(757		)	(210		)	8,432			2,774			622			13
	Benefits paid	(5,719		)		(1,683		)		(422		)	(53		)	(8,422		)	(1,551		)	(436		)	(55		)
	Foreign currency translation adjustments	—				(528		)		—			(98		)	—			682			—			30
	Business combinations	—				128				—			—			—			—			—			—
	Curtailments, settlements and other	(385		)		(85		)		(252		)	3			(30,937		)	(8		)	2			22
	Ending benefit obligation	71,480				27,528				5,110			1,238			82,110			29,301			6,271			1,528
	Change in plan assets
	Beginning fair value of plan assets	68,085				15,541				—			—			94,349			14,541			—			—
	Actual return on plan assets	2,107				988				—			—			10,332			1,344			—			—
	Employer contributions	128				886				393			51			2,420			855			432			54
	Plan participants' contributions	—				4				29			2			—			7			4			1
	Benefits paid	(5,719		)		(1,683		)		(422		)	(53		)	(8,422		)	(1,551		)	(436		)	(55		)
	Foreign currency translation adjustments	—				(692		)		—			—			—			389			—			—
	Business combinations	—				26				—			—			—			—			—			—
	Settlements	(435		)		(87		)		—			—			(30,629		)	(207		)	—			—
	Other	—				3				—			—			35			163			—			—
	Ending fair value of plan assets	64,166				14,986				—			—			68,085			15,541			—			—
	Ending funded status	$	(7,314	)		$	(12,542	)		$	(5,110	)	$	(1,238	)	$	(14,025	)	$	(13,760	)	$	(6,271	)	$	(1,528	)
	Amounts recorded in the consolidated balance sheets
	Non-current assets	$	—			$	137			$	—		$	—		$	—		$	73		$	—		$	—
	Current liabilities	(131		)		(379		)		(368		)	(83		)	(95		)	(343		)	(406		)	(84		)
	Non-current liabilities	(7,183		)		(12,300		)		(4,742		)	(1,155		)	(13,930		)	(13,490		)	(5,865		)	(1,444		)
	Net amount recorded	$	(7,314	)		$	(12,542	)		$	(5,110	)	$	(1,238	)	$	(14,025	)	$	(13,760	)	$	(6,271	)	$	(1,528	)
	Amounts recorded in Accumulated other comprehensive loss
	Net actuarial gain (loss)	$	4,747			$	(3,379	)		$	(542	)	$	47		$	(1,434	)	$	(4,786	)	$	(1,573	)	$	(188	)
	Net prior service (cost) credit	38				(87		)		19			91			42			(111		)	135			118
	Total recorded in Accumulated other comprehensive loss	$	4,785			$	(3,466	)		$	(523	)	$	138		$	(1,392	)	$	(4,897	)	$	(1,438	)	$	(70	)
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]	'
	The following table summarizes the total accumulated benefit obligations (ABO), the fair value of plan assets for defined benefit pension plans with ABO in excess of plan assets, and the projected benefit obligation (PBO) and fair value of plan assets for defined benefit pension plans with PBO in excess of plan assets (dollars in millions):
		December 31, 2013								December 31, 2012
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans
	ABO	$	71,461			$	27,069			$	82,103		$	28,880
	Plans with ABO in excess of plan assets
	ABO	$	71,461			$	25,897			$	82,103		$	28,156
	Fair value of plan assets	$	64,166			$	13,663			$	68,085		$	14,702
	Plans with PBO in excess of plan assets
	PBO	$	71,480			$	26,788			$	82,110		$	28,537
	Fair value of plan assets	$	64,166			$	14,109			$	68,085		$	14,704
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]	'
	The following table summarizes the total accumulated benefit obligations (ABO), the fair value of plan assets for defined benefit pension plans with ABO in excess of plan assets, and the projected benefit obligation (PBO) and fair value of plan assets for defined benefit pension plans with PBO in excess of plan assets (dollars in millions):
		December 31, 2013								December 31, 2012
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans
	ABO	$	71,461			$	27,069			$	82,103		$	28,880
	Plans with ABO in excess of plan assets
	ABO	$	71,461			$	25,897			$	82,103		$	28,156
	Fair value of plan assets	$	64,166			$	13,663			$	68,085		$	14,702
	Plans with PBO in excess of plan assets
	PBO	$	71,480			$	26,788			$	82,110		$	28,537
	Fair value of plan assets	$	64,166			$	14,109			$	68,085		$	14,704
Schedule of Net Benefit Costs [Table Text Block]	'
	The following table summarizes the components of net periodic pension and OPEB expense along with the assumptions used to determine benefit obligations (dollars in millions):
		Year Ended December 31, 2013														Year Ended December 31, 2012												Year Ended December 31, 2011
		Pension Benefits								Other Benefits						Pension Benefits						Other Benefits						Pension Benefits						Other Benefits
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Components of expense
	Service cost	$	395			$	425			$	24		$	13		$	590		$	411		$	23		$	16		$	632		$	399		$	23		$	30
	Interest cost	2,837				1,010				217			57			4,055			1,110			234			63			4,915			1,215			265			186
	Expected return on plan assets	(3,562		)		(823		)		—			—			(5,029		)	(870		)	—			—			(6,692		)	(925		)	—			—
	Amortization of prior service cost (credit)	(4		)		19				(116		)	(14		)	(1		)	1			(116		)	(12		)	(2		)	(2		)	(39		)	(9		)
	Recognized net actuarial loss	6				208				85			6			2			35			52			6			—			—			6			—
	Curtailments, settlements and other (gains) losses	(77		)		(6		)		(62		)	—			2,580			71			—			11			(23		)	(7		)	—			(749		)
	Net periodic pension and OPEB expense (income)	$	(405	)		$	833			$	148		$	62		$	2,197		$	758		$	193		$	84		$	(1,170	)	$	680		$	255		$	(542	)
	Weighted-average assumptions used to determine benefit obligations
	Discount rate	4.46		%		4.1		%		4.52		%	4.71		%	3.59		%	3.7		%	3.68		%	3.97		%	4.15		%	4.5		%	4.24		%	4.37		%
	Rate of compensation increase(a)	N/A				2.9		%		N/A			4.21		%	N/A			2.77		%	4.5		%	4.21		%	4.5		%	3.11		%	4.5		%	4.2		%
	Weighted-average assumptions used to determine net expense
	Discount rate	3.59		%		3.69		%		3.69		%	3.97		%	4.06		%	4.45		%	4.24		%	4.31		%	4.96		%	5.16		%	5.05		%	5.01		%
	Expected rate of return on plan assets	5.77		%		5.7		%		N/A			N/A			6.18		%	6.2		%	N/A			N/A			8		%	6.5		%	N/A			N/A
	Rate of compensation increase(a)	N/A				2.77		%		4.5		%	4.21		%	4.5		%	3.15		%	4.5		%	4.21		%	3.96		%	3.25		%	4.5		%	4.42		%
	_________
	(a)	As a result of ceasing the accrual of additional benefits for salaried plan participants, the rate of compensation increase does not have a significant effect on our U.S. pension and OPEB plans.
Schedule of Assumptions Used [Table Text Block]	'
	The following table summarizes the components of net periodic pension and OPEB expense along with the assumptions used to determine benefit obligations (dollars in millions):
		Year Ended December 31, 2013														Year Ended December 31, 2012												Year Ended December 31, 2011
		Pension Benefits								Other Benefits						Pension Benefits						Other Benefits						Pension Benefits						Other Benefits
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Components of expense
	Service cost	$	395			$	425			$	24		$	13		$	590		$	411		$	23		$	16		$	632		$	399		$	23		$	30
	Interest cost	2,837				1,010				217			57			4,055			1,110			234			63			4,915			1,215			265			186
	Expected return on plan assets	(3,562		)		(823		)		—			—			(5,029		)	(870		)	—			—			(6,692		)	(925		)	—			—
	Amortization of prior service cost (credit)	(4		)		19				(116		)	(14		)	(1		)	1			(116		)	(12		)	(2		)	(2		)	(39		)	(9		)
	Recognized net actuarial loss	6				208				85			6			2			35			52			6			—			—			6			—
	Curtailments, settlements and other (gains) losses	(77		)		(6		)		(62		)	—			2,580			71			—			11			(23		)	(7		)	—			(749		)
	Net periodic pension and OPEB expense (income)	$	(405	)		$	833			$	148		$	62		$	2,197		$	758		$	193		$	84		$	(1,170	)	$	680		$	255		$	(542	)
	Weighted-average assumptions used to determine benefit obligations
	Discount rate	4.46		%		4.1		%		4.52		%	4.71		%	3.59		%	3.7		%	3.68		%	3.97		%	4.15		%	4.5		%	4.24		%	4.37		%
	Rate of compensation increase(a)	N/A				2.9		%		N/A			4.21		%	N/A			2.77		%	4.5		%	4.21		%	4.5		%	3.11		%	4.5		%	4.2		%
	Weighted-average assumptions used to determine net expense
	Discount rate	3.59		%		3.69		%		3.69		%	3.97		%	4.06		%	4.45		%	4.24		%	4.31		%	4.96		%	5.16		%	5.05		%	5.01		%
	Expected rate of return on plan assets	5.77		%		5.7		%		N/A			N/A			6.18		%	6.2		%	N/A			N/A			8		%	6.5		%	N/A			N/A
	Rate of compensation increase(a)	N/A				2.77		%		4.5		%	4.21		%	4.5		%	3.15		%	4.5		%	4.21		%	3.96		%	3.25		%	4.5		%	4.42		%
	_________
	(a)	As a result of ceasing the accrual of additional benefits for salaried plan participants, the rate of compensation increase does not have a significant effect on our U.S. pension and OPEB plans.
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]	'
	The following table summarizes estimated amounts to be amortized from Accumulated other comprehensive loss into net periodic benefit cost in the year ending December 31, 2014 based on December 31, 2013 plan measurements (dollars in millions):
		U.S. Pension Plans				Non-U.S. Pension Plans				U.S. Other Benefit Plans			Non-U.S. Other Benefit Plans
	Amortization of prior service cost (credit)	$	(4	)		$	19			$	(2	)	$	(14	)
	Amortization of net actuarial (gain) loss	(91		)		159				14			(6		)
		$	(95	)		$	178			$	12		$	(20	)
Target Allocations by Asset Category [Table Text Block]	'
	The following table summarizes the target allocations by asset category for U.S. and non-U.S. defined benefit pension plans:
		December 31, 2013						December 31, 2012
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Asset Categories
	Equity	19	%		28	%		19	%		30	%
	Debt	58	%		49	%		60	%		53	%
	Other(a)	23	%		23	%		21	%		17	%
	Total	100	%		100	%		100	%		100	%
	__________
	(a)	Primarily includes private equity, real estate and absolute return strategies which mainly consist of hedge funds.
Schedule of of Plan Assets [Table Text Block]	'
	The following tables summarize the fair value of defined benefit pension plan assets by asset class (dollars in millions):
		Fair Value Measurements of U.S. Plan Assets at December 31, 2013														Fair Value Measurements of Non-U.S. Plan Assets at December 31, 2013												Total U.S. and Non-U.S. Plan Assets
		Level 1				Level 2				Level 3			Total			Level 1			Level 2			Level 3			Total
	Assets
	Cash equivalents and other short-term investments	$	—			$	411			$	—		$	411		$	—		$	156		$	—		$	156		$	567
	Common and preferred stocks(a)	10,234				70				6			10,310			1,816			6			—			1,822			12,132
	Government and agency debt securities(b)	—				14,971				—			14,971			—			3,418			—			3,418			18,389
	Corporate debt securities(c)	—				20,409				58			20,467			—			2,410			12			2,422			22,889
	Mortgage and asset-backed securities	—				238				72			310			—			65			2			67			377
	Investment funds
	Equity funds	72				190				44			306			128			1,930			—			2,058			2,364
	Fixed income funds	27				8				113			148			—			927			12			939			1,087
	Funds of hedge funds	—				—				4,285			4,285			—			—			733			733			5,018
	Other investment funds	—				820				732			1,552			—			672			—			672			2,224
	Private equity and debt investments(d)	—				—				6,335			6,335			—			—			430			430			6,765
	Real estate investments(e)	390				4				4,127			4,521			13			12			1,405			1,430			5,951
	Other investments	—				—				62			62			—			—			618			618			680
	Derivatives
	Interest rate contracts	5				46				—			51			1			1			—			2			53
	Foreign exchange and other contracts	12				111				—			123			2			43			—			45			168
	Total assets	10,740				37,278				15,834			63,852			1,960			9,640			3,212			14,812			78,664
	Liabilities
	Derivatives
	Interest rate contracts	(22		)		(213		)		(6		)	(241		)	(12		)	—			—			(12		)	(253		)
	Foreign exchange and other contracts	—				(98		)		—			(98		)	—			(56		)	—			(56		)	(154		)
	Total liabilities	(22		)		(311		)		(6		)	(339		)	(12		)	(56		)	—			(68		)	(407		)
	Net plan assets subject to leveling	$	10,718			$	36,967			$	15,828		63,513			$	1,948		$	9,584		$	3,212		14,744			78,257
	Other plan assets and liabilities(g)												653												242			895
	Net Plan Assets												$	64,166											$	14,986		$	79,152
		Fair Value Measurements of U.S. Plan Assets at December 31, 2012														Fair Value Measurements of Non-U.S. Plan Assets at December 31, 2012												Total U.S. and Non-U.S. Plan Assets
		Level 1				Level 2				Level 3			Total			Level 1			Level 2			Level 3			Total
	Assets
	Cash equivalents and other short-term investments	$	—			$	551			$	—		$	551		$	—		$	151		$	—		$	151		$	702
	Common and preferred stocks(a)	9,663				26				19			9,708			2,227			—			—			2,227			11,935
	Government and agency debt securities(b)	—				17,835				—			17,835			—			3,722			—			3,722			21,557
	Corporate debt securities(c)	—				19,116				77			19,193			—			2,596			2			2,598			21,791
	Mortgage and asset-backed securities	—				1,804				105			1,909			—			54			3			57			1,966
	Investment funds
	Equity funds	66				253				195			514			212			2,009			—			2,221			2,735
	Fixed income funds	16				498				190			704			—			1,046			14			1,060			1,764
	Funds of hedge funds	—				—				3,768			3,768			—			—			627			627			4,395
	Other investment funds	—				837				806			1,643			—			35			—			35			1,678
	Private equity and debt investments(d)	—				—				6,400			6,400			—			—			381			381			6,781
	Real estate investments(e)	412				—				4,335			4,747			19			31			1,422			1,472			6,219
	Other investments	—				—				63			63			—			—			665			665			728
	Derivatives
	Interest rate contracts	15				1,553				—			1,568			—			—			—			—			1,568
	Foreign exchange and other contracts	6				124				1			131			2			40			—			42			173
	Total assets	10,178				42,597				15,959			68,734			2,460			9,684			3,114			15,258			83,992
	Liabilities
	Mortgage and asset-backed securities(f)	—				(15		)		—			(15		)	—			—			—			—			(15		)
	Derivatives
	Interest rate contracts	(21		)		(977		)		(8		)	(1,006		)	(4		)	—			—			(4		)	(1,010		)
	Foreign exchange and other contracts	(4		)		(123		)		(1		)	(128		)	(1		)	(36		)	—			(37		)	(165		)
	Total liabilities	(25		)		(1,115		)		(9		)	(1,149		)	(5		)	(36		)	—			(41		)	(1,190		)
	Net plan assets subject to leveling	$	10,153			$	41,482			$	15,950		67,585			$	2,455		$	9,648		$	3,114		15,217			82,802
	Other plan assets and liabilities(g)												500												324			824
	Net Plan Assets												$	68,085											$	15,541		$	83,626
	__________
	(a)	Includes GM common stock of $2 million and $1.4 billion in Level 1 of U.S. plan assets at December 31, 2013 and 2012.
	(b)	Includes U.S. and sovereign government and agency issues. Excludes mortgage and asset-backed securities.
	(c)	Includes bank debt obligations.
	(d)	Includes private equity investment funds.
(e)	Includes investment funds and public real estate investment trusts.
(f)	Primarily investments sold short.
(g)	Cash held by the plans, net of amounts receivable/payable for unsettled security transactions and payables for investment manager fees, custody fees and other expenses.
Schedule of Expected Benefit Payments [Table Text Block]	'
	The following table summarizes net benefit payments expected to be paid in the future, which include assumptions related to estimated future employee service (dollars in millions):
		Pension Benefits(a)								Other Benefits
		U.S. Plans				Non-U.S. Plans				U.S. Plans			Non-U.S. Plans
	2014	$	5,780			$	1,609			$	376		$	77
	2015	$	5,687			$	1,597			$	364		$	65
	2016	$	5,475			$	1,688			$	352		$	65
	2017	$	5,368			$	1,711			$	341		$	65
	2018	$	5,210			$	1,581			$	332		$	66
	2019 - 2023	$	24,019			$	7,858			$	1,576		$	357
	__________
	(a)	Benefits for most U.S. pension plans and certain non-U.S. pension plans are paid out of plan assets rather than our Cash and cash equivalents.
Pension Plan, Defined Benefit [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Schedule of contributions to pension/OPEB plans	'
	The following table summarizes contributions made to the defined benefit pension plans (dollars in millions):
		Years Ended December 31,
		2013				2012				2011
	U.S. hourly and salaried	$	128			$	2,420			$	1,962
	Non-U.S.	886				855				836
	Total	$	1,014			$	3,275			$	2,798
Other Postretirement Benefit Plan, Defined Benefit [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Schedule of contributions to pension/OPEB plans	'
	The following table summarizes contributions to the U.S. OPEB plans (dollars in millions):
		Years Ended December 31,
		2013				2012				2011
	Employer contributions	$	393			$	432			$	426
	Plan participants' contributions	29				4				13
	Total contributions	$	422			$	436			$	439
Pension Plan and Other Postretirement Benefit Plan, Defined Benefit [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Schedules of U.S. and Non-US Pension Rollforward [Table Text Block]	'
	The following tables summarize the activity for U.S. plan assets measured at fair value using Level 3 inputs (dollars in millions):
		Balance at January 1, 2013				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Balance at December 31, 2013			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
						Gains (Losses)				Settlements, Net									31-Dec-13
	Assets
	Common and preferred stocks	$	19			$	3			$	(16	)	$	—		$	6		$	1
	Corporate debt securities	77				5				(24		)	—			58			(2		)
	Mortgage and asset-backed securities	105				1				(34		)	—			72			(1		)
	Investment funds
	Equity funds	195				(3		)		(148		)	—			44			—
	Fixed income funds	190				17				(94		)	—			113			11
	Funds of hedge funds	3,768				498				19			—			4,285			497
	Other investment funds	806				40				(114		)	—			732			29
	Private equity and debt investments	6,400				926				(991		)	—			6,335			436
	Real estate investments	4,335				458				(666		)	—			4,127			190
	Other investments	63				(2		)		1			—			62			(2		)
	Total assets	15,958				1,943				(2,067		)	—			15,834			1,159
	Derivatives, net
	Interest rate contracts	(8		)		2				—			—			(6		)	1
	Total net assets	$	15,950			$	1,945			$	(2,067	)	$	—		$	15,828		$	1,160
		Balance at January 1, 2012				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Balance at December 31, 2012			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
						Gains (Losses)				Settlements, Net									31-Dec-12
	Assets
	Common and preferred stocks	$	46			$	1			$	(25	)	$	(3	)	$	19		$	3
	Government and agency debt securities	3				(1		)		(2		)	—			—			—
	Corporate debt securities	352				1				(258		)	(18		)	77			(35		)
	Mortgage and asset-backed securities	197				34				(120		)	(6		)	105			24
	Group annuity contracts	3,209				77				(3,286		)	—			—			—
	Investment funds
	Equity funds	521				51				(414		)	37			195			18
	Fixed income funds	1,210				47				(1,067		)	—			190			(3		)
	Funds of hedge funds	5,918				310				(2,460		)	—			3,768			239
	Other investment funds	2,270				55				(1,531		)	12			806			(2		)
	Private equity and debt investments	8,444				1,022				(3,038		)	(28		)	6,400			154
	Real estate investments	5,092				198				(955		)	—			4,335			(80		)
	Other investments	—				—				63			—			63			—
	Total assets	27,262				1,795				(13,093		)	(6		)	15,958			318
	Derivatives, net
	Interest rate contracts	7				3				(14		)	(4		)	(8		)	(1		)
	Foreign exchange and other contracts	(6		)		1				5			—			—			—
	Total net assets	$	27,263			$	1,799			$	(13,102	)	$	(10	)	$	15,950		$	317
	The following tables summarize the activity for non-U.S. plan assets measured at fair value using Level 3 inputs (dollars in millions):
		Balance at January 1, 2013				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Effect of Foreign Currency			Balance at December 31, 2013			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
						Gains (Losses)				Settlements, Net												31-Dec-13
	Assets
	Corporate debt securities	$	2			$	1			$	8		$	1		$	—		$	12		$	1
	Mortgage and asset-backed securities	3				—				(1		)	—			—			2			—
	Investment funds
	Fixed income funds	14				(1		)		(1		)	—			—			12			—
	Funds of hedge funds	627				111				28			—			(33		)	733			112
	Private equity and debt investments	381				73				3			—			(27		)	430			53
	Real estate investments	1,422				103				(57		)	—			(63		)	1,405			122
	Other investments	665				(10		)		(43		)	—			6			618			4
	Total assets	$	3,114			$	277			$	(63	)	$	1		$	(117	)	$	3,212		$	292
		Balance at January 1, 2012				Net Realized/Unrealized				Purchases, Sales and			Transfers Into/Out of Level 3			Effect of Foreign Currency			Balance at December 31, 2012			Change in Unrealized Gains/(Losses) Attributable to Assets Held at
						Gains (Losses)				Settlements, Net												31-Dec-12
	Assets
	Government and agency debt securities	$	1			$	—			$	(1	)	$	—		$	—		$	—		$	—
	Corporate debt securities	4				2				(4		)	—			—			2			—
	Mortgage and asset-backed securities	4				—				(4		)	3			—			3			—
	Investment funds
	Equity funds	146				(24		)		(124		)	—			2			—			—
	Fixed income funds	20				—				(6		)	—			—			14			—
	Funds of hedge funds	585				25				—			—			17			627			26
Other investment funds	247				17				(269		)	—			5			—			—
Private equity and debt investments	298				46				29			—			8			381			24
Real estate investments	1,345				123				(82		)	—			36			1,422			119
Other investments	428				16				203			—			18			665			10
Total assets	$	3,078			$	205			$	(258	)	$	3		$	86		$	3,114		$	179

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Guarantor Obligations [Table Text Block]	'
	The following tables summarize information related to commitments and contingencies (dollars in millions):
		December 31, 2013						December 31, 2012
		Liability Recorded			Maximum Liability(a)			Liability Recorded			Maximum Liability(a)
	Guarantees
	Third-party commercial loans and other obligations(b)	$	51		$	15,616		$	168		$	22,496
	Other product-related claims	$	54		$	1,317		$	51		$	1,040
	__________
	(a)	Calculated as future undiscounted payments.
	(b)	Includes liabilities recorded of $10 million and $15 million and maximum liabilities of $15.3 billion and $22.1 billion related to Ally Financial repurchase obligations at December 31, 2013 and 2012.
Commitment and contingencies [Table Text Block]	'
		Liability Recorded
		December 31, 2013			December 31, 2012
	Other litigation-related liability and tax administrative matters(a)	$	1,227		$	1,728
	Product liability	$	690		$	601
	Credit card programs(b)
	Redemption liability(c)	$	183		$	209
	Deferred revenue(d)	$	295		$	355
	Environmental liability	$	154		$	166
	__________
	(a)	Primarily indirect tax-related litigation as well as various non-U.S. labor related matters.
	(b)	At December 31, 2013 and 2012 qualified cardholders had rebates available, net of deferred program revenue, of approximately $2.6 billion and $2.9 billion.
	(c)	Recorded in Accrued liabilities.
	(d)	Recorded in Other liabilities and deferred income taxes.
Schedule of Future Minimum Commitments for Operating Leases [Table Text Block]	'
	The following table summarizes our minimum commitments under noncancelable operating leases having initial terms in excess of one year, primarily for property (dollars in millions):
		2014			2015			2016			2017			2018			Thereafter
	Minimum commitments(a)	$	363		$	290		$	225		$	156		$	132		$	499
	Sublease income	(52		)	(58		)	(60		)	(59		)	(56		)	(293		)
	Net minimum commitments	$	311		$	232		$	165		$	97		$	76		$	206
	__________
	(a)	Certain of the leases contain escalation clauses and renewal or purchase options.

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Income before Income Tax and Equity Income [Table Text Block]	'
	The following table summarizes income (loss) before income taxes and equity income and gain on investments (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	U.S. income (loss)	$	4,880		$	(19,063	)	$	2,883
	Non-U.S. income (loss)	768			(11,194		)	3,102
	Income (loss) before income taxes and equity income and gain on investments	$	5,648		$	(30,257	)	$	5,985
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	'
	The following table summarizes Income tax expense (benefit) (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Current income tax expense (benefit)
	U.S. federal	$	(34	)	$	6		$	(134	)
	U.S. state and local	88			78			58
	Non-U.S.	512			646			275
	Total current income tax expense	566			730			199
	Deferred income tax expense (benefit)
	U.S. federal	1,049			(28,965		)	8
	U.S. state and local	137			(3,415		)	(28		)
	Non-U.S.	375			(3,181		)	(289		)
	Total deferred income tax expense (benefit)	1,561			(35,561		)	(309		)
	Total income tax expense (benefit)	$	2,127		$	(34,831	)	$	(110	)
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	'
	The following table summarizes a reconciliation of Income tax expense (benefit) compared with the amounts at the U.S. federal statutory rate (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Income tax expense (benefit) at U.S. federal statutory income tax rate	$	1,977		$	(10,590	)	$	2,094
	State and local tax expense	145			254			215
	Non-U.S. income taxed at other than 35%	(168		)	908			(172		)
	Foreign tax credit election change	—			(1,075		)	—
	U.S. tax on Non-U.S. income	543			713			(122		)
	Change in valuation allowance	182			(33,917		)	(2,386		)
	Change in tax laws	146			67			(33		)
	Research incentives	(490		)	(68		)	(45		)
	Gain on sale of New Delphi equity interests	—			—			599
	Goodwill impairment	124			8,705			377
	Settlements of prior year tax matters	(473		)	—			(56		)
	VEBA contribution	—			—			(476		)
	Foreign currency remeasurement	(21		)	(36		)	59
	Pension contribution	—			—			(127		)
	U.S. salaried pension plan settlement	—			541			—
	Other adjustments	162			(333		)	(37		)
	Total income tax expense (benefit)	$	2,127		$	(34,831	)	$	(110	)
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	'
	The following table summarizes the components of temporary differences and carryforwards that give rise to deferred tax assets and liabilities (dollars in millions):
		December 31, 2013			December 31, 2012
	Deferred tax assets
	Postretirement benefits other than pensions	$	2,902		$	3,494
	Pension and other employee benefit plans	5,469			8,536
	Warranties, dealer and customer allowances, claims and discounts	4,282			4,277
	Property, plants and equipment	2,464			2,225
	Capitalized research expenditures	7,179			6,106
	Operating loss and tax credit carryforwards(a)	19,342			20,220
	Miscellaneous	1,663			3,443
	Total deferred tax assets before valuation allowances	43,301			48,301
	Less: valuation allowances	(10,823		)	(10,991		)
	Total deferred tax assets	32,478			37,310
	Deferred tax liabilities
	Intangible assets	397			724
	Net deferred tax assets	$	32,081		$	36,586
	_________
	(a)	Includes operating loss and tax credit carryforwards of $16.3 billion expiring through 2033 and $3.0 billion that may be carried forward indefinitely at December 31, 2013.
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	'
	The following table summarizes activity of the total amounts of unrecognized tax benefits (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Beginning balance	$	2,745		$	2,370		$	5,169
	Additions to current year tax positions	251			112			129
	Additions to prior years' tax positions	276			512			562
	Reductions to prior years' tax positions	(535		)	(141		)	(1,002		)
	Reductions in tax positions due to lapse of statutory limitations	(73		)	(34		)	(64		)
	Settlements	(132		)	(112		)	(2,399		)
	Other	(2		)	38			(25		)
	Ending balance	$	2,530		$	2,745		$	2,370

Restructuring_And_Other_Initia1

Restructuring And Other Initiatives (Tables)	12 Months Ended
	Dec. 31, 2013
Restructuring and Related Activities [Abstract]	'
Schedule of Restructuring and Related Costs [Table Text Block]	'
	The following table summarizes the reserves related to restructuring and other initiatives and charges by segment, including postemployment benefit reserves and charges (dollars in millions):
		GMNA			GME			GMIO			GMSA			Total
	Balance at January 1, 2011(a)	$	1,135		$	664		$	3		$	—		$	1,802
	Additions, interest accretion and other	104			449			—			81			634
	Payments	(366		)	(395		)	(2		)	(68		)	(831		)
	Revisions to estimates	19			(9		)	—			—			10
	Effect of foreign currency	(8		)	(22		)	—			(1		)	(31		)
	Balance at December 31, 2011(a)	884			687			1			12			1,584
	Additions, interest accretion and other	140			254			84			92			570
	Payments	(304		)	(344		)	(46		)	(55		)	(749		)
	Revisions to estimates	(78		)	(17		)	(1		)	(11		)	(107		)
	Effect of foreign currency	11			10			1			—			22
	Balance at December 31, 2012(a)	653			590			39			38			1,320
	Additions, interest accretion and other	58			202			404			50			714
	Payments	(182		)	(299		)	(111		)	(68		)	(660		)
	Revisions to estimates	(16		)	(9		)	(3		)	(1		)	(29		)
	Effect of foreign currency	(16		)	19			4			(3		)	4
	Balance at December 31, 2013(a)	$	497		$	503		$	333		$	16		$	1,349
	__________
	(a)	The remaining cash payments related to these reserves for restructuring and other initiatives, including temporary layoff benefits of $353 million, $356 million and $376 million at December 31, 2013, 2012 and 2011 for GMNA, primarily relate to postemployment benefits to be paid.

Interest_Income_and_Other_NonO1

Interest Income and Other Non-Operating, net (Tables)	12 Months Ended
	Dec. 31, 2013
Interest and Other Income [Abstract]	'
Interest and Other Income [Table Text Block]	'
	The following table summarizes the components of Interest income and other non-operating income, net (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Interest income	$	246		$	343		$	455
	Net gains (losses) on derivatives	(13		)	(63		)	41
	Dividends and royalties	97			98			153
	Foreign currency transaction and translation gains (losses)	(154		)	16			(48		)
	Gains (losses) on securities and other investments - realized and unrealized	691			(193		)	(9		)
	Deferred income from technology agreements	100			114			113
	Other	96			530			146
	Total interest income and other non-operating income, net	$	1,063		$	845		$	851

Stockholders_Equity_and_Noncon1

Stockholders' Equity and Noncontrolling Interests (Tables)	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Preferred Stock [Table Text Block]	'
	The following table summarizes significant features relating to our preferred stock (dollars in millions, except for per share amounts):
		Liquidation Preference Per Share			Dividend Rate Per Annum			Dividends Paid
								Years Ended December 31,
								2013				2012				2011
	Series A Preferred Stock	$	25		9	%		$	1,370			$	621			$	621
	Series B Preferred Stock	$	50		4.75	%		$	237			$	238			$	243
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
	The following table summarizes the components of Accumulated other comprehensive loss (dollars in millions):
		Years Ended December 31,
		2013											2012										2011
		Pre-tax Amount			Tax Expense (Benefit)				Net Amount				Pre-tax Amount				Tax Expense(Benefit)			Net Amount			Pre-tax Amount			Tax Expense (Benefit)			Net Amount
	Foreign currency translation adjustments
	Balance at beginning of period	$	112		$	11			$	101			$	226			$	11		$	215		$	405		$	11		$	394
	Other comprehensive income (loss)	(722		)	11				(733		)		(103		)		—			(103		)	(183		)	—			(183		)
	Purchase of noncontrolling interest shares	—			—				—				—				—			—			(6		)	—			(6		)
	Other comprehensive income (loss) attributable to noncontrolling interests	18			—				18				(11		)		—			(11		)	10			—			10
	Balance at end of period	$	(592	)	$	22			$	(614	)		$	112			$	11		$	101		$	226		$	11		$	215
	Cash flow hedging gains (losses), net
	Balance at beginning of period	$	—		$	—			$	—			$	2			$	—		$	2		$	(23	)	$	—		$	(23	)
	Other comprehensive income before reclassification adjustment	—			—				—				—				—			—			25			—			25
	Reclassification adjustment	—			—				—				(2		)		—			(2		)	—			—			—
	Other comprehensive income (loss)	—			—				—				(2		)		—			(2		)	25			—			25
	Balance at end of period	$	—		$	—			$	—			$	—			$	—		$	—		$	2		$	—		$	2
	Unrealized gain (loss) on securities, net
	Balance at beginning of period	$	63		$	22			$	41			$	1			$	5		$	(4	)	$	—		$	5		$	(5	)
	Other comprehensive income (loss) before reclassification adjustment	133			(6		)		139				(140		)		22			(162		)	1			—			1
	Reclassification adjustment	(185		)	(7		)		(178		)		202				(5		)	207			—			—			—
	Other comprehensive income (loss)	(52		)	(13		)		(39		)		62				17			45			1			—			1
	Balance at end of period	$	11		$	9			$	2			$	63			$	22		$	41		$	1		$	5		$	(4	)
	Defined benefit plans, net
	Balance at beginning of period	$	(7,794	)	$	400			$	(8,194	)		$	(4,665	)		$	1,409		$	(6,074	)	$	2,298		$	1,413		$	885
	Other comprehensive income before reclassification adjustment - prior service cost (credit)	6			(4		)		10				(53		)		(95		)	42			302			1			301
	Other comprehensive income (loss) before reclassification adjustment - actuarial gain (loss)	8,673			3,091				5,582				(3,180		)		(926		)	(2,254		)	(7,578		)	(10		)	(7,568		)
	Reclassification adjustment - prior service cost (credit)(a)	(128		)	(44		)		(84		)		(125		)		(5		)	(120		)	(52		)	—			(52		)
	Reclassification adjustment - actuarial gain (loss)(a)	178			(7		)		185				229				17			212			366			5			361
	Other comprehensive income (loss)	8,729			3,036				5,693				(3,129		)		(1,009		)	(2,120		)	(6,962		)	(4		)	(6,958		)
	Purchase of noncontrolling interest shares	—			—				—				—				—			—			(1		)	—			(1		)
	Balance at end of period	$	935		$	3,436			$	(2,501	)		$	(7,794	)		$	400		$	(8,194	)	$	(4,665	)	$	1,409		$	(6,074	)
	Accumulated Other Comprehensive Loss
	Balance at beginning of period	$	(7,619	)	$	433			$	(8,052	)		$	(4,436	)		$	1,425		$	(5,861	)	$	2,680		$	1,429		$	1,251
	Other comprehensive income (loss) before reclassification adjustment	8,090			3,092				4,998				(3,476		)		(999		)	(2,477		)	(7,433		)	(9		)	(7,424		)
	Reclassification adjustment	(135		)	(58		)		(77		)		304				7			297			314			5			309
	Other comprehensive income (loss)	7,955			3,034				4,921				(3,172		)		(992		)	(2,180		)	(7,119		)	(4		)	(7,115		)
	Purchase of noncontrolling interest shares	—			—				—				—				—			—			(7		)	—			(7		)
	Other comprehensive income (loss) attributable to noncontrolling interests	18			—				18				(11		)		—			(11		)	10			—			10
	Balance at end of period	$	354		$	3,467			$	(3,113	)		$	(7,619	)		$	433		$	(8,052	)	$	(4,436	)	$	1,425		$	(5,861	)
	__________
	(a)	Included in the computation of net periodic pension and OPEB (income) expense. Refer to Note 15 for additional information.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
	The following table summarizes basic and diluted earnings per share (in millions, except for per share amounts):
		Years Ended December 31,
		2013			2012			2011
	Basic earnings per share
	Net income attributable to stockholders	$	5,346		$	6,188		$	9,190
	Less: cumulative dividends on preferred stock and charge related to purchase of preferred stock(a)	(1,576		)	(859		)	(859		)
	Less: undistributed earnings allocated to Series B Preferred Stock participating security	—			(470		)	(746		)
	Net income attributable to common stockholders	$	3,770		$	4,859		$	7,585
	Weighted-average common shares outstanding - basic	1,393			1,566			1,536
	Basic earnings per common share	$	2.71		$	3.1		$	4.94
	Diluted earnings per share
	Net income attributable to stockholders	$	5,346		$	6,188		$	9,190
	Add: preferred dividends to holders of Series B Preferred Stock	218			—			—
	Less: cumulative dividends on preferred stock and charge related to purchase of preferred stock(a)	(1,576		)	(859		)	(859		)
	Less: undistributed earnings allocated to Series B Preferred Stock participating security	—			(442		)	(693		)
	Net income attributable to common stockholders	$	3,988		$	4,887		$	7,638
	Weighted-average common shares outstanding - diluted
	Weighted-average common shares outstanding - basic	1,393			1,566			1,536
	Dilutive effect of warrants	146			104			130
	Dilutive effect of conversion of Series B Preferred Stock	134			—			—
	Dilutive effect of RSUs	3			5			2
	Weighted-average common shares outstanding - diluted	1,676			1,675			1,668
	Diluted earnings per common share	$	2.38		$	2.92		$	4.58
	__________
	(a)	Includes earned but undeclared dividends of $15 million, $26 million and $26 million on our Series A Preferred Stock in the years ended December 31, 2013, 2012 and 2011 and $20 million on our Series B Preferred Stock in the years ended December 31, 2012 and 2011.

Stock_Incentive_Plans_Tables

Stock Incentive Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Restricted Stock Units Activity [Table Text Block]	'
	The following table summarizes information about the RSUs under our stock incentive plans (RSUs in millions):
		Shares		Weighted-Average Grant Date Fair Value			Weighted-Average Remaining Contractual Term in Years
	RSUs outstanding at January 1, 2013	26.9		$	23.06		0.7
	Granted	8.9		$	29.05
	Settled	(16.0	)	$	20.6
	Forfeited or expired	(1.2	)	$	27.2
	RSUs outstanding at December 31, 2013	18.6		$	27.76		1.2
	RSUs unvested and expected to vest at December 31, 2013	9.2		$	27.94		1.6
	RSUs vested and payable at December 31, 2013	8.8		$	27.61		—
	RSUs granted in the year ended December 31, 2012			$	25.1
	RSUs granted in the year ended December 31, 2011			$	31.18
Schedule of Compensation Cost for Stock Incentive Plans [Table Text Block]	'
	The following table summarizes compensation expense recorded for our stock incentive plans (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Compensation expense	$	311		$	302		$	233
	Income tax benefit	$	100		$	100		$	—

Supplementary_Quarterly_Financ1

Supplementary Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Quarterly Financial Information [Table Text Block]	'
	The following tables summarize supplementary quarterly financial information (dollars in millions, except per share amounts):
		1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
	2013
	Total net sales and revenue	$	36,884	$	39,075	$	38,983	$	40,485
	Automotive gross margin	$	3,727	$	4,416	$	4,954	$	4,070
	Net income	$	1,185	$	1,388	$	1,705	$	1,053
	Net income attributable to stockholders	$	1,175	$	1,414	$	1,717	$	1,040
	Earnings per share, basic	$	0.63	$	0.87	$	0.5	$	0.64
	Earnings per share, diluted	$	0.58	$	0.75	$	0.45	$	0.57
		1st Quarter		2nd Quarter		3rd Quarter		4th Quarter
	2012
	Total net sales and revenue	$	37,759	$	37,614	$	37,576	$	39,307
	Automotive gross margin	$	4,418	$	4,449	$	4,327	$	(3,135	)
	Net income	$	1,350	$	1,901	$	1,854	$	1,031
	Net income attributable to stockholders	$	1,315	$	1,846	$	1,833	$	1,194
	Earnings per share, basic	$	0.64	$	0.95	$	0.94	$	0.58
	Earnings per share, diluted	$	0.6	$	0.9	$	0.89	$	0.54

Segment_Reporting_Tables

Segment Reporting (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
	The following tables summarize key financial information by segment (dollars in millions):
		At and For the Year Ended December 31, 2013
		GMNA			GME			GMIO			GMSA			Corporate			Eliminations			Total Automotive			GM Financial			Eliminations			Total
	Sales
	External customers	$	95,091		$	20,110		$	20,263		$	16,478		$	150					$	152,092		$	—		$	—		$	152,092
	GM Financial revenue	—			—			—			—			—						—			3,344			(9		)	3,335
	Intersegment	8			—			—			—			—						8			—			(8		)	—
	Total net sales and revenue	$	95,099		$	20,110		$	20,263		$	16,478		$	150					$	152,100		$	3,344		$	(17	)	$	155,427
	Income (loss) before interest and taxes-adjusted	$	7,461		$	(844	)	$	1,230		$	327		$	(494	)				$	7,680		$	898		$	—		$	8,578
	Adjustments(a)	$	(100	)	$	153		$	(1,169	)	$	(157	)	483						$	(790	)	(15		)	$	—		(805		)
	Corporate interest income													249												$	(3	)	246
	Automotive interest expense													338												$	(4	)	334
	Loss on extinguishment of debt													212									—						212
	Income (loss) before income taxes													(312		)							883						7,473
	Income tax expense													1,826									300			$	1		2,127
	Net income (loss) attributable to stockholders													$	(2,138	)							$	583					$	5,346
	Equity in net assets of nonconsolidated affiliates	$	74		$	7		$	8,009		$	4		$	—		$	—		$	8,094		$	—		$	—		$	8,094
	Total assets	$	87,978		$	10,341		$	23,425		$	11,488		$	26,460		$	(29,642	)	$	130,050		$	38,084		$	(1,790	)	$	166,344
	Expenditures for property	$	5,466		$	770		$	772		$	444		$	92		$	5		$	7,549		$	16		$	—		$	7,565
	Depreciation, amortization and impairment of long-lived assets and finite-lived intangible assets	$	4,216		$	406		$	1,806		$	522		$	63		$	(1	)	$	7,012		$	498		$	(10	)	$	7,500
	Equity income and gain on investments	$	15		$	—		$	1,794		$	1		$	—		$	—		$	1,810		$	—		$	—		$	1,810
	__________
	(a)	Consists of pension settlement charges of $56 million and charges related to PSA product development agreement of $49 million in GMNA; gain on sale of equity investment in PSA of $152 million in GME; property and intangible asset impairment charges of $774 million, costs related to the withdrawal of the Chevrolet brand in Europe of $621 million and goodwill impairment charges of $442 million, partially offset by GM Korea hourly wage litigation of $577 million and acquisition of GM Korea preferred shares of $67 million in GMIO, all net of noncontrolling interests; Venezuela currency devaluation of $162 million in GMSA; gain on sale of equity investment in Ally Financial of $483 million in Corporate; costs related to the withdrawal of the Chevrolet brand in Europe of $15 million in GM Financial; and income related to various insurance recoveries of $35 million.
		At and For the Year Ended December 31, 2012
		GMNA			GME			GMIO			GMSA			Corporate			Eliminations			Total Automotive			GM Financial			Eliminations			Total
	Sales
	External customers	$	89,912		$	20,689		$	22,954		$	16,700		$	40					$	150,295		$	—		$	—		$	150,295
	GM Financial revenue	—			—			—			—			—						—			1,961			—			1,961
	Intersegment	(2		)	—			—			—			—						(2		)	—			2			—
	Total net sales and revenue	$	89,910		$	20,689		$	22,954		$	16,700		$	40					$	150,293		$	1,961		$	2		$	152,256
	Income (loss) before interest and taxes-adjusted	$	6,470		$	(1,939	)	$	2,528		$	457		$	(400	)				$	7,116		$	744		$	(1	)	$	7,859
	Adjustments(a)	$	(29,052	)	$	(6,391	)	$	(288	)	$	27		(402		)				$	(36,106	)	—			$	—		(36,106		)
	Corporate interest income													343															343
	Automotive interest expense													489															489
	Loss on extinguishment of debt													250									—						250
	Income (loss) before income taxes													(1,198		)							744						(28,643		)
	Income tax expense (benefit)													(35,007		)							177			$	(1	)	(34,831		)
	Net income attributable to stockholders													$	33,809								$	567					$	6,188
	Equity in net assets of nonconsolidated affiliates	$	65		$	51		$	6,764		$	3		$	—		$	—		$	6,883		$	—		$	—		$	6,883
	Total assets	$	87,100		$	9,669		$	25,032		$	11,958		$	16,991		$	(17,006	)	$	133,744		$	16,368		$	(690	)	$	149,422
	Expenditures for property	$	4,766		$	1,035		$	1,225		$	956		$	77		$	(4	)	$	8,055		$	13		$	—		$	8,068
	Depreciation, amortization and impairment of long-lived assets and finite-lived intangible assets	$	3,663		$	6,570		$	638		$	483		$	49		$	(1	)	$	11,402		$	225		$	(10	)	$	11,617
	Equity income and gain on investments	$	9		$	—		$	1,552		$	1		$	—		$	—		$	1,562		$	—		$	—		$	1,562
	Valuation allowances against deferred tax assets(b)	$	—		$	—		$	—		$	—		$	(36,261	)	$	—		$	(36,261	)	$	(103	)	$	—		$	(36,364	)
	__________
	(a)	Consists of Goodwill impairment charges of $26.4 billion, pension settlement charges of $2.7 billion and income related to various insurance recoveries of $9 million in GMNA; property impairment charges of $3.7 billion, intangible assets impairment charges of $1.8 billion, goodwill impairment charges of $590 million, impairment charges related to investment in PSA of $220 million, a charge of $119 million to record General Motors Strasbourg S.A.S. assets and liabilities to estimated fair value and income related to various insurance recoveries of $7 million in GME; GM Korea hourly wage litigation charge of $336 million, goodwill impairment charges of $132 million, which are presented net of noncontrolling interests, income related to various insurance recoveries of $112 million and income related to redemption of the GM Korea mandatorily redeemable preferred shares of $68 million in GMIO; income related to various insurance recoveries of $27 million in GMSA; and a charge of $402 million which represents the premium paid to purchase our common stock from the UST in Corporate.
	(b)	Includes valuation allowance releases of $36.5 billion net of the establishment of new valuation allowances of $0.1 billion. Amounts exclude changes related to income tax expense (benefits) in jurisdictions with a full valuation allowance throughout the period.
		For the Year Ended December 31, 2011
		GMNA			GME			GMIO			GMSA			Corporate			Eliminations			Total Automotive			GM Financial			Eliminations			Total
	Sales
	External customers	$	85,988		$	25,154		$	21,031		$	16,632		$	61					$	148,866		$	—		$	—		$	148,866
	GM Financial revenue	—			—			—			—			—						—			1,410			—			1,410
	Intersegment	3			—			—			—			—						3			—			(3		)	—
	Total net sales and revenue	$	85,991		$	25,154		$	21,031		$	16,632		$	61					$	148,869		$	1,410		$	(3	)	$	150,276
	Income (loss) before interest and taxes-adjusted	$	6,779		$	(1,041	)	$	2,232		$	158		$	(446	)				$	7,682		$	622		$	—		$	8,304
	Adjustments(a)	$	2,394		$	(1,016	)	$	(364	)	$	63		(216		)				$	861		—			$	—		861
	Corporate interest income													455															455
	Automotive interest expense													540															540
	Income (loss) before income taxes													(747		)							622						9,080
	Income tax expense (benefit)													(295		)							185						(110		)
	Net income (loss) attributable to stockholders													$	(452	)							$	437					$	9,190
	Equity in net assets of nonconsolidated affiliates	$	60		$	50		$	6,678		$	2		$	—		$	—		$	6,790		$	—		$	—		$	6,790
	Total assets	$	83,528		$	15,777		$	22,130		$	11,514		$	30,244		$	(31,333	)	$	131,860		$	13,112		$	(369	)	$	144,603
Expenditures for property	$	3,404		$	1,016		$	907		$	880		$	44		$	(10	)	$	6,241		$	8		$	—		$	6,249
Depreciation, amortization and impairment of long-lived assets and finite-lived intangible assets	$	3,693		$	1,371		$	491		$	454		$	50		$	(1	)	$	6,058		$	85		$	(2	)	$	6,141
Equity income and gain on investments(b)	$	1,733		$	—		$	1,458		$	1		$	—		$	—		$	3,192		$	—		$	—		$	3,192
Reversal of valuation allowances against deferred tax assets(c)	$	—		$	—		$	—		$	—		$	(488	)	$	—		$	(488	)	$	—		$	—		$	(488	)
__________
(a)	Consists of the gain on sale of our New Delphi Class A Membership Interests of $1.6 billion and the gain related to the HCT settlement of $749 million in GMNA; Goodwill impairment charges of $1.0 billion in GME; Goodwill impairment charges of $258 million and charges related to GM India of $106 million in GMIO; a gain on extinguishment of debt of $63 million in GMSA; and impairment charges of $555 million related to Ally Financial common stock and a gain on the sale of Ally Financial preferred stock of $339 million in Corporate.
(b)	Includes a gain of $1.6 billion recorded on the sale of our New Delphi Class A Membership Interests. Refer to Note 8 for additional information on the sale of New Delphi.
(c)	Amounts exclude changes related to income tax expense (benefits) in jurisdictions with a full valuation allowance throughout the period.
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	'
	The following table summarizes information concerning principal geographic areas (dollars in millions):
		At and For the Years Ended December 31,
		2013						2012						2011
		Net Sales & Revenue			Long-Lived Assets			Net Sales & Revenue			Long-Lived Assets			Net Sales & Revenue			Long-Lived Assets
	Automotive
	U.S.	$	88,784		$	15,844		$	85,105		$	13,520		$	79,868		$	11,736
	Non-U.S.	63,308			12,289			65,190			12,425			68,998			13,709
	GM Financial
	U.S.	2,233			2,472			1,832			1,112			1,363			532
	Non-U.S.	1,102			1,043			129			590			47			300
	Total consolidated	$	155,427		$	31,648		$	152,256		$	27,647		$	150,276		$	26,277

Supplemental_Information_for_t1

Supplemental Information for the Consolidated Statements of Cash Flows (Tables)	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Information [Abstract]	'
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	'
	The following table summarizes the sources (uses) of cash provided by Change in other operating assets and liabilities and cash paid for income taxes and interest (dollars in millions):
		Years Ended December 31,
		2013			2012			2011
	Accounts receivable	$	8		$	(460	)	$	(1,572	)
	Inventories	59			(326		)	(2,760		)
	Automotive equipment on operating leases	(968		)	370			(522		)
	Change in other assets	(563		)	(312		)	(320		)
	Accounts payable	(485		)	162			2,139
	Income taxes payable	(161		)	155			(360		)
	Accrued liabilities and other liabilities	784			1,041			(727		)
	Total	$	(1,326	)	$	630		$	(4,122	)
	Cash paid for income taxes and interest
	Cash paid for income taxes	$	727		$	575		$	569
	Cash paid for interest (net of amounts capitalized) - Automotive	$	299		$	335		$	226
	Cash paid for interest (net of amounts capitalized) - GM Financial	760			298			284
	Total cash paid for interest (net of amounts capitalized)	$	1,059		$	633		$	510

Nature_Of_Operations_and_Basis2

Nature Of Operations and Basis of Presentation (Details)	12 Months Ended
	Dec. 31, 2013
Nature of Operations and Basis of Presentation [Abstract]	'
Number of Reportable Segments	5

Significant_Accounting_Policie3

Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue Recognition [Abstract]	'	'	'
Maximum Days Past Due for Suspending Accrual of Finance Charge Income	'60 days	'	'
Advertising and Promotion Expense [Abstract]	'	'	'
Advertising and Promotion Expense	$5,500,000,000	$5,400,000,000	$5,200,000,000
Research and Development Expenditures [Abstract]	'	'	'
Research and Development Expense	7,200,000,000	7,400,000,000	8,100,000,000
Allowance for Doubtful Accounts [Roll Forward]	'	'	'
Allowance for accounts and notes receivable	311,000,000	331,000,000	252,000,000
Amounts Charged (Credited) to Costs and Expenses	61,000,000	-10,000,000	159,000,000
Deductions	-24,000,000	-46,000,000	-83,000,000
Other	-4,000,000	36,000,000	3,000,000
Balance at End of Period	344,000,000	311,000,000	331,000,000
Pension and Other Postretirement Plans [Abstract]	'	'	'
Percentage Recognized as Pension Expense in the First Year	60.00%	'	'
Percentage of Pension Expense Recognized in the Next Four Years	10.00%	'	'
Period Of Time Over Which Pension Return Adjustment Is Amortized	'4 years	'	'
Percentage of Non-US Pension Benefit Obligation	92.00%	'	'
Income Taxes [Abstract]	'	'	'
Valuation Allowance Methodology Number Of Years Utilized	'3 years	'	'
Percentage Threshold To Recognize The Tax Benefit For Uncertain Tax Positions	50.00%	'	'
Foreign Currency Transactions and Translation [Abstract]	'	'	'
Foreign currency transaction and remeasurement losses	$350,000,000	$117,000,000	$55,000,000
Maximum [Member]	'	'	'
Cash Equivalents [Abstract]	'	'	'
Number of days in which the investments mature	'90 days	'	'
Vehicles [Member] | Maximum [Member]	'	'	'
Equipment on Operating Leases, net [Abstract]	'	'	'
Lease Term to Retail Customers	'60 months	'	'
Lease Term to Rental Car Companies	'8 months	'	'

Acquisition_of_Businesses_Aqui

Acquisition of Businesses Aquisition of Ally International Operations (Details) (USD $)

3 Months Ended

12 Months Ended

12 Months Ended

1 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Apr. 02, 2013

Nov. 30, 2012

Apr. 30, 2013

Jun. 30, 2013

Oct. 31, 2013

Dec. 31, 2013

Ally International Operations - Europe and Latin America [Member]

Ally International Operations - Europe and Latin America [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

Ally International Operations - Europe and Latin America [Member]

Ally International Operations - Europe and Latin America [Member]

Ally International Operations - Europe and Latin America [Member]

Ally International Operations - Europe and Latin America except France, Portugal and Brazil [Member]

Ally International Operations - France and Portugal [Member]

Ally International Operations - Brazil [Member]

Ally International Operations - GMAC-SAIC [Member]

Business Acquisition [Line Items]

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Percentage of Voting Interests to be Acquired in the Business Combination

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100.00%

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Effective Date of Acquisition

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1-Apr-13

1-Jun-13

1-Oct-13

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Aggregate Consideration for Acquisitions

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$3,254,000,000

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Repayments of Assumed Debt

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1,400,000,000

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Expected Total Consideration of Unconsummated Transaction

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900,000,000

Net Intercompany Receivables Acquired

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300,000,000

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Cash

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607,000,000

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Restricted Cash

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906,000,000

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Finance Receivables

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15,144,000,000

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Other Assets Including Identifiable Intangible Assets

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769,000,000

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Secured and Unsecured Debt

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-12,833,000,000

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Other Liabilities

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-1,483,000,000

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Identifiable Net Assets Acquired

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3,110,000,000

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Goodwill Resulting from the Acquisition

1,560,000,000

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1,973,000,000

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1,560,000,000

1,973,000,000

29,019,000,000

'

'

1,422,000,000

1,278,000,000

1,278,000,000

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144,000,000

'

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Receivables Acquired with Deteriorated Credit Quality, Contractually Required Payments Receivable at Acquisition

'

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799,000,000

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Receivables Acquired with Deteriorated Credit Quality, Cash Flows Expected to be Collected at Acquisition

'

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728,000,000

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Receivables Acquired with Deteriorated Credit Quality, at Acquisition, Fair Value

'

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601,000,000

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Acquired Receivables Contractual Required Payments Receivable at Acquisition

'

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15,600,000,000

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Acquired Receivables, Cash Flows Not Expected to be Collected

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303,000,000

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Acquired Receivables, Fair Value

'

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14,500,000,000

'

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Total net sales and revenue

40,485,000,000

38,983,000,000

39,075,000,000

36,884,000,000

39,307,000,000

37,576,000,000

37,614,000,000

37,759,000,000

155,427,000,000

152,256,000,000

150,276,000,000

968,000,000

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Pro Forma Total Net Sales and Revenue

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156,284,000,000

154,161,000,000

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Net income (loss) attributable to stockholders

1,040,000,000

1,717,000,000

1,414,000,000

1,175,000,000

1,194,000,000

1,833,000,000

1,846,000,000

1,315,000,000

5,346,000,000

6,188,000,000

9,190,000,000

109,000,000

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Pro Forma Net Income (Loss) Attributable to Stockholders

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$5,492,000,000

$6,412,000,000

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Acquisition_of_Businesses_Acqu

Acquisition of Businesses Acquisition of SAIC GM Investment Limited (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2012	Sep. 02, 2012	Sep. 30, 2012
				GM India [Member]	GM India [Member]	Equity income and gain on investments [Member]
						GM India [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'
Effective Date of Acquisition	'	'	'	1-Sep-12	'	'
Subsidiary or Equity Method Investee Percentage Ownership after Certain Transactions	'	'	'	'	86.00%	'
Goodwill	$1,560,000,000	$1,973,000,000	$29,019,000,000	'	$61,000,000	'
Remeasurement gain	'	'	'	'	'	51,000,000
Additional Investment Made	'	'	'	$125,000,000	'	'
Percentage Ownership after All Transactions	'	'	'	90.80%	'	'

GM_Financial_Receivables_net_S

GM Financial Receivables, net Summary of Finance Receivables, Net (Details) (GM Financial [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Millions, unless otherwise specified
Financial Receivables [Line Items]	'	'	'	'
Pre-acquisition finance receivables, outstanding amount	$1,294	$2,162	'	'
Pre-acquisition finance receivables, carrying amount	1,174	1,958	'	'
Post-acquisition finance receivables, net of fees	28,006	9,391	'	'
Financing Receivable, Gross	29,180	11,349	'	'
Financing Receivable, Allowance for Credit Losses	-548	-351	-179	-26
Financing Receivable, net	28,632	10,998	'	'
Fair Value of GM Financial receivables, net	28,668	11,313	'	'
Allowance for financing receivables, current	427	266	'	'
Consumer Finance Receivable [Member]	'	'	'	'
Financial Receivables [Line Items]	'	'	'	'
Pre-acquisition finance receivables, outstanding amount	1,294	2,162	'	'
Pre-acquisition finance receivables, carrying amount	1,174	1,958	'	'
Post-acquisition finance receivables, net of fees	21,956	8,831	'	'
Financing Receivable, Gross	23,130	10,789	'	'
Financing Receivable, Allowance for Credit Losses	-497	-345	'	'
Financing Receivable, net	22,633	10,444	'	'
Commercial Finance Receivables [Member]	'	'	'	'
Financial Receivables [Line Items]	'	'	'	'
Pre-acquisition finance receivables, outstanding amount	0	0	'	'
Pre-acquisition finance receivables, carrying amount	0	0	'	'
Post-acquisition finance receivables, net of fees	6,050	560	'	'
Financing Receivable, Gross	6,050	560	'	'
Financing Receivable, Allowance for Credit Losses	-51	-6	'	'
Financing Receivable, net	$5,999	$554	'	'

GM_Financial_Receivables_net_A

GM Financial Receivables, net Accretable Yield (Details) (GM Financial [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
GM Financial [Member]	'	'
Financial Receivables [Line Items]	'	'
Balance at beginning of period	$404	$737
Ally Financial international operations acquisition	127	'
Accretion of accretable yield	-342	-503
Transfer from nonaccretable difference	74	170
Effect of foreign currency	-8	0
Balance at end of period	$255	$404

GM_Financial_Receivables_net_A1

GM Financial Receivables, net Allowance for Loan Losses (Details) (GM Financial [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
GM Financial [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Balance at beginning of period	$351	$179	$26
Provision for Loan Losses	475	304	178
Charge-offs	-643	-304	-66
Recoveries	362	172	41
Effect of foreign currency	3	0	0
Balance at end of period	$548	$351	$179

GM_Financial_Receivables_net_C

GM Financial Receivables, net Credit Quality (Details) (GM Financial [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	$29,180	$11,349
Consumer Finance Receivable [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	23,130	10,789
Consumer Finance Receivable [Member] | North America [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Sub-prime FICO Score	620	'
Percentage of Sub-Prime Loans	88.00%	84.00%
Commercial Finance Receivables [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	6,050	560
Commercial Finance Receivables [Member] | Group I [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	549	99
Commercial Finance Receivables [Member] | Group II [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	1,460	278
Commercial Finance Receivables [Member] | Group III [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	1,982	171
Commercial Finance Receivables [Member] | Group IV [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	1,462	12
Commercial Finance Receivables [Member] | Group V [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	385	'
Commercial Finance Receivables [Member] | Group VI [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Gross	$212	'

GM_Financial_Receivables_net_D

GM Financial Receivables, net Delinquency (Details) (GM Financial [Member], Consumer Finance Receivable [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
GM Financial [Member] | Consumer Finance Receivable [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Consumer finance receivables, nonaccrual status	$642	$503
Delinquent Contracts [Abstract]	'	'
31 to 60 Days Past Due	952	672
Greater than 60 Days Past Due	408	230
Total Finance Receivables More Than 30 Days Past Due	1,360	902
In Repossession	41	31
Total Finance Receivables More Than 30 Days Delinquent or in Repossession	1,401	933
31 To 60 Days Past Due Percent Of Contractual Amount Due	4.10%	6.10%
Greater than 60 Days Past Due, Percent of Contractual Amount Due	1.70%	2.10%
Total Financing Receivables More than 30 Days Past Due, Percent of Contractual Amount Due	5.80%	8.20%
In Repossession, Percent of Contractual Amount Due	0.20%	0.30%
Total Finance Receivables More Than 30 Days Delinquent or in Repossession, Percent of Contractual Amount Due	6.00%	8.50%
Outstanding recorded investment	767	228
Less: allowance for credit losses	-103	-32
Outstanding recorded investment, net of allowance	664	196
Unpaid principal balance	$779	$232

Marketable_Securities_Marketab

Marketable Securities Marketable Securities (Details) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Nov. 30, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

In Millions, unless otherwise specified

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Cash And Cash Equivalents Line Item [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Current [Member]

Marketable Securities - Noncurrent [Member]

Marketable Securities - Noncurrent [Member]

Marketable Securities - Noncurrent [Member]

Marketable Securities - Noncurrent [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Restricted cash and marketable securities [Member]

Interest income and other non-operating income (loss), net [Member]

Interest income and other non-operating income (loss), net [Member]

Money Market Funds [Member]

Money Market Funds [Member]

Money Market Funds [Member]

Money Market Funds [Member]

US Treasury and Government [Member]

US Treasury and Government [Member]

US Treasury and Government [Member]

US Treasury and Government [Member]

Foreign Government Debt Securities [Member]

Foreign Government Debt Securities [Member]

Foreign Government Debt Securities [Member]

Foreign Government Debt Securities [Member]

Corporate Debt Securities [Member]

Corporate Debt Securities [Member]

Corporate Debt Securities [Member]

Corporate Debt Securities [Member]

US Treasury and Government [Member]

US Treasury and Government [Member]

US Treasury and Government [Member]

US Treasury and Government [Member]

Foreign Government Debt Securities [Member]

Foreign Government Debt Securities [Member]

Corporate Debt Securities [Member]

Corporate Debt Securities [Member]

Corporate Debt Securities [Member]

Corporate Debt Securities [Member]

Equity and Sovereign Debt [Member]

Equity and Sovereign Debt [Member]

Equity and Sovereign Debt [Member]

Equity and Sovereign Debt [Member]

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Money Market Funds [Member]

Money Market Funds [Member]

Money Market Funds [Member]

Money Market Funds [Member]

Other restricted marketable securities [Member]

Other restricted marketable securities [Member]

Other restricted marketable securities [Member]

Other restricted marketable securities [Member]

Level 1 [Member]

Level 1 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Level 2 [Member]

Fair Value Inputs, Level 1 and 2 [Member]

Fair Value Inputs, Level 1 and 2 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 1 [Member]

Level 2 [Member]

Level 2 [Member]

Investment Holdings [Line Items]

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Available-for-sale Securities, Amortized Cost

'

'

'

'

'

'

'

$10,812

$9,211

$1,262

$1,799

'

'

$1,437

$4,190

'

'

$515

$0

'

'

$7,598

$3,222

'

'

$7,232

$3,726

$5,343

$1,231

'

'

'

'

$1,867

$2,465

'

'

$22

$30

'

'

$0

$179

'

'

$931

$1,131

$897

$933

'

'

$34

$198

'

'

Available-for-sale Securities

'

'

'

'

'

'

'

10,812

9,211

'

'

1,262

1,799

'

'

1,437

4,190

'

'

515

0

'

'

7,598

3,222

7,235

3,787

'

'

5,344

1,231

'

'

'

'

1,869

2,505

'

'

22

51

'

'

0

179

932

1,132

'

'

897

933

'

'

35

199

Trading Securities, Fair Value

'

'

'

'

'

'

'

25

1,408

'

'

'

'

'

'

'

'

'

'

0

1,408

'

'

25

0

'

'

'

'

'

'

1,737

5,201

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Marketable securities

8,972

8,988

'

'

'

'

'

10,837

10,619

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,972

8,988

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash, Cash Equivalents And Time Deposits

'

'

'

'

'

'

'

9,184

7,803

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

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'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash and cash equivalents

20,021

18,422

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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'

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'

'

'

'

'

'

'

'

'

'

'

'

'

Total Marketable Securities

8,972

9,167

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restricted Cash - Other

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,144

236

'

'

'

'

'

'

'

'

Total Restricted Cash and Marketable Securities

2,076

1,368

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from Sale and Maturity of Available-for-sale Securities

'

'

339

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Available-for-Sale Ownership Percent

'

'

'

7.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on Sale of Investments

'

'

'

'

'

152

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage Decline in Common Stock Price

'

'

'

'

55.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other than Temporary Impairment Losses, Investments

'

'

'

'

'

'

$220

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Marketable_Securities_Contract

Marketable Securities Contractual Maturity Table (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Proceeds from Sale and Maturity of Marketable Securities [Abstract]	'	'	'
Available-for-sale securities, sale proceeds	$4,700,000,000	$4,700,000,000	$1,600,000,000
Available-for-sale Securities Classified by Contractual Maturity, Amortized Cost [Abstract]	'	'	'
Due in one year or less, amortized cost	14,879,000,000	'	'
Due after one year through five years, amortized cost	1,937,000,000	'	'
Total contractual maturities of available-for-sale securities, amortized cost	16,816,000,000	'	'
Available-for-Sale Securities Classified by Contractual Maturity, Fair Value [Abstract]	'	'	'
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	14,881,000,000	'	'
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	1,939,000,000	'	'
Available-for-sale Securities, Fair Value	$16,820,000,000	'	'

Inventories_Details

Inventories (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Productive material, supplies and work in process	$5,872	$6,560
Finished product, including service parts	8,167	8,154
Total inventories	$14,039	$14,714

Equipment_on_Operating_Leases_2

Equipment on Operating Leases, net (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property Subject to or Available for Operating Lease [Line Items]	'	'	'
Equipment on operating leases, net	$2,398	$1,782	'
GM Financial [Member]	'	'	'
Property Subject to or Available for Operating Lease [Line Items]	'	'	'
GM Financial equipment on operating leases, net	3,383	1,649	'
Vehicles [Member] | Automotive [Member]	'	'	'
Property Subject to or Available for Operating Lease [Line Items]	'	'	'
Equipment on operating leases	2,605	1,946	'
Less: accumulated depreciation	-207	-164	'
Equipment on operating leases, net	2,398	1,782	'
Depreciation expense	218	227	431
Impairment Charges	168	181	151
Vehicles [Member] | GM Financial [Member]	'	'	'
Property Subject to or Available for Operating Lease [Line Items]	'	'	'
GM Financial equipment on operating leases	4,025	1,910	'
Less: accumulated depreciation	-642	-261	'
GM Financial equipment on operating leases, net	3,383	1,649	'
Depreciation expense	450	205	70
Future Minimum Rental Receipts [Abstract]	'	'	'
2014	628	'	'
2015	512	'	'
2016	266	'	'
2017	43	'	'
2018	$4	'	'

Equity_In_Net_Assets_Of_Noncon2

Equity In Net Assets Of Nonconsolidated Affiliates Equity in Net Assets of Nonconsolidated Affiliates (Details) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

1 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Sep. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

China JVs [Member]

China JVs [Member]

China JVs [Member]

SGM [Member]

SGM [Member]

SGM [Member]

SGM Norsom [Member]

SGM Norsom [Member]

SGM DY [Member]

SGM DY [Member]

SGM DYPT [Member]

SGM DYPT [Member]

SGMW [Member]

SGMW [Member]

FAW-GM [Member]

FAW-GM [Member]

PATAC [Member]

PATAC [Member]

Shanghai Onstar [Member]

Shanghai Onstar [Member]

Shanghai Chengxin [Member]

Shanghai Chengxin [Member]

SGMS [Member]

SGMS [Member]

Other Nonconsolidated Affiliates [Member]

Other Nonconsolidated Affiliates [Member]

Other Nonconsolidated Affiliates [Member]

GM India [Member]

New Delphi [Member]

New Delphi [Member]

New Delphi [Member]

New Delphi [Member]

SGM [Member]

SGM [Member]

SGM [Member]

SGM [Member]

SGM [Member]

SGM [Member]

Ally Financial [Member]

SAIC Finance [Member]

SAIC [Member]

SAIC [Member]

SAIC [Member]

SAIC [Member]

SAIC [Member]

SGM Norsom [Member]

SGM DY [Member]

SGM DYPT [Member]

Shanghai Onstar [Member]

Shanghai Chengxin [Member]

GMAC SAIC [Member]

GMAC SAIC [Member]

GMAC SAIC [Member]

SGM [Member]

SGM Norsom [Member]

SGM DY [Member]

SGM DYPT [Member]

SGMS [Member]

Schedule of Equity Method Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity income and gain on investments

$1,810,000,000

$1,562,000,000

$3,192,000,000

$1,763,000,000

$1,521,000,000

$1,511,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$47,000,000

$41,000,000

($46,000,000)

'

'

$0

$0

$1,727,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividends Received

1,700,000,000

1,400,000,000

1,200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Undistributed Earnings Including Dividends Declared

1,800,000,000

1,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity Method Investment, Ownership Percentage

'

'

'

'

'

'

'

50.00%

50.00%

25.00%

25.00%

25.00%

25.00%

25.00%

25.00%

44.00%

44.00%

50.00%

50.00%

50.00%

50.00%

40.00%

40.00%

33.00%

33.00%

49.00%

49.00%

'

'

'

'

100.00%

'

'

'

50.00%

50.00%

50.00%

20.00%

33.00%

20.00%

40.00%

40.00%

50.00%

25.00%

25.00%

25.00%

51.00%

Additional Interest Acquired

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consideration Transferred

'

'

'

'

'

'

119,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Difference Between Carrying Amount and Underlying Equity Percentage Acquired

'

'

'

'

'

'

82,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis Difference Allocated to Plant, Property and Equipment

'

'

'

'

'

'

8,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis Difference Allocated to Intangible Assets

'

'

'

'

'

'

36,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis Difference Allocated to Goodwill

'

'

'

'

'

'

38,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from Sale of Equity Method Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,800,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of Affiliate Membership Interest Issued and Outstanding Owned

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Terminated Obligation to Loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on Sale of Equity Method Investee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment Charges Related To Equity Method Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

39,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other Noncash Expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

67,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity Method Investments

8,094,000,000

6,883,000,000

6,790,000,000

7,851,000,000

6,579,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

243,000,000

304,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity Method Investment, Difference Between Carrying Amount and Underlying Equity

3,800,000,000

3,800,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of Increase in Basis Attributable to Goodwill

$3,400,000,000

$3,400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity_In_Net_Assets_Of_Noncon3

Equity In Net Assets Of Nonconsolidated Affiliates Summarized Financial Data of NCAs (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]	'	'	'
Current Assets	$16,900	$14,401	'
Noncurrent Assets	9,645	8,273	'
Total Assets	26,545	22,674	'
Current Liabilities	15,878	14,505	'
Noncurrent Liabilities	1,576	1,514	'
Total Liabilities	17,454	16,019	'
Non-controlling Interests	1,040	1,056	'
Net Sales	40,597	37,327	34,753
Net Income (Loss)	3,735	3,175	3,190
China JVs [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Current Assets	14,666	11,759	'
Noncurrent Assets	8,187	6,766	'
Total Assets	22,853	18,525	'
Current Liabilities	14,019	12,612	'
Noncurrent Liabilities	1,065	756	'
Total Liabilities	15,084	13,368	'
Non-controlling Interests	1,040	1,055	'
Net Sales	38,767	33,364	30,511
Net Income (Loss)	3,685	3,198	3,203
Other Nonconsolidated Affiliates [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Current Assets	2,234	2,642	'
Noncurrent Assets	1,458	1,507	'
Total Assets	3,692	4,149	'
Current Liabilities	1,859	1,893	'
Noncurrent Liabilities	511	758	'
Total Liabilities	2,370	2,651	'
Non-controlling Interests	0	1	'
Net Sales	1,830	3,963	4,242
Net Income (Loss)	$50	($23)	($13)

Equity_In_Net_Assets_Of_Noncon4

Equity In Net Assets Of Nonconsolidated Affiliates Transactions with NCAs (Details) (Nonconsolidated Affiliates [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Nonconsolidated Affiliates [Member]	'	'	'
Results of Operations [Abstract]	'	'	'
Automotive sales and revenue	$2,724	$2,572	$3,266
Automotive purchases, net	724	497	1,044
Interest income and other non-operating income	19	184	34
Financial Position [Abstract]	'	'	'
Accounts and notes receivable, net	756	1,668	'
Accounts payable	183	167	'
Deferred revenue and customer deposits	32	46	'
Cash Flows [Abstract]	'	'	'
Operating	3,607	3,385	3,624
Investing	($13)	($41)	($27)

Property_net_Details

Property, net (Details) (USD $)

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GME [Member]

GME [Member]

Segments other than GME and GMIO [Member]

Segments other than GME and GMIO [Member]

Segments other than GME and GMIO [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Personal Property [Member]

Personal Property [Member]

Personal Property [Member]

Personal Property [Member]

Real Property [Member]

Real Property [Member]

Real Property [Member]

Real Property [Member]

Land [Member]

Land [Member]

Buildings and Improvements [Member]

Buildings and Improvements [Member]

Buildings and Improvements [Member]

Buildings and Improvements [Member]

Machinery and Equipment [Member]

Machinery and Equipment [Member]

Machinery and Equipment [Member]

Machinery and Equipment [Member]

Construction in Progress [Member]

Construction in Progress [Member]

Real estate, plants and equipment [Member]

Real estate, plants and equipment [Member]

Special Tools, Net [Member]

Special Tools, Net [Member]

Special Tools, Net [Member]

Special Tools, Net [Member]

Level 3 [Member]

Holden Manufacturing Operations [Member]

GM India [Member]

GM India [Member]

GM India [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

GMIO [Member]

GMIO [Member]

GME [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GME [Member]

GME [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Level 3 [Member]

Noncontrolling Interests [Member]

Holden Manufacturing Operations [Member]

GM India [Member]

Cost of Sales [Member]

Selling, General and Administrative Expenses [Member]

GM India [Member]

GM India [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Cost of Sales [Member]

Minimum [Member]

Maximum [Member]

Level 3 [Member]

Level 3 [Member]

Holden Manufacturing Operations [Member]

Holden Manufacturing Operations [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Property, Plant and Equipment, Net, by Type [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Useful Lives

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'40 years

'

'

'3 years

'27 years

'

'

'

'

'

'

'1 year

'15 years

Real Estate, Plants and Equipment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,868

$2,107

$4,971

$4,601

'

'

$15,222

$12,720

'

'

$2,644

$3,018

$24,705

$22,446

'

'

'

'

Less Accumulated Depreciation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-6,787

-5,556

'

'

'

'

Property, net

25,867

24,196

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17,918

16,890

7,949

7,306

'

'

Capitalized Interest and Software [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized Interest

'

'

'

'

'

'

'

'

'

'

'

'

'

81

117

91

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized Software, Net

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

580

465

'

'

50

108

'

'

'

'

'

'

Depreciation, Amortization and Impairment [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Depreciation and amortization expense

'

'

'

'

'

'

'

'

'

'

'

'

'

3,959

3,888

3,604

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment Charges

'

'

'

'

'

'

'

'

'

'

'

'

'

901

3,793

81

477

280

3,700

3,500

200

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Depreciation, Impairment Charges and Amortization Expense

'

'

'

'

'

'

'

'

'

'

'

'

'

4,860

7,681

3,685

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized Software Amortization Expense

'

'

'

'

'

'

'

'

'

'

'

'

'

244

209

203

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, Plant, and Equipment, Fair Value Disclosure

'

'

'

'

'

45

45

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, Plant and Equipment Impaired Assets, FairValue

'

'

'

131

71

'

'

'

'

408

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage Ownership in GM India

'

'

'

'

'

'

90.80%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill and Intangible Asset Impairment

'

'

'

'

'

103

'

35

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of Intangible Assets, Finite-lived

523

1,755

0

'

'

'

'

'

1,800

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset Impairment Charges

'

'

'

'

'

$383

'

'

$5,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Inputs [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Demolition Costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6.00%

23.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Holding Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'0 years 0 months

'3 years 0 months

'0 years 0 months

'4 years 0 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Discount Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11.00%

12.00%

11.20%

14.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Physical Deterioration

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

52.00%

69.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Functional Obsolescence

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8.00%

28.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Economic Obsolescence

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

72.00%

100.00%

17.00%

23.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill_Details

Goodwill (Details) (USD $)

12 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Automotive [Member]

Automotive [Member]

Automotive [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GME [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Goodwill [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill

$1,973,000,000

$29,019,000,000

'

$695,000,000

$27,741,000,000

'

$1,278,000,000

$1,278,000,000

'

'

$0

$26,399,000,000

'

$0

$581,000,000

'

'

$549,000,000

$610,000,000

'

$146,000,000

$151,000,000

'

Goodwill impairment charges

-541,000,000

-27,145,000,000

-1,286,000,000

-541,000,000

-27,145,000,000

'

0

0

'

'

0

-26,399,000,000

'

0

-590,000,000

-1,000,000,000

-481,000,000

-541,000,000

-156,000,000

-270,000,000

0

0

'

Goodwill from business combinations

154,000,000

61,000,000

'

10,000,000

61,000,000

'

144,000,000

0

'

'

0

0

'

0

0

'

'

0

61,000,000

'

10,000,000

0

'

Effect of foreign currency translation and other

-26,000,000

38,000,000

'

-26,000,000

38,000,000

'

0

0

'

'

0

0

'

0

9,000,000

'

'

-8,000,000

34,000,000

'

-18,000,000

-5,000,000

'

Goodwill

1,560,000,000

1,973,000,000

29,019,000,000

138,000,000

695,000,000

'

1,422,000,000

1,278,000,000

'

'

0

0

'

0

0

581,000,000

'

0

549,000,000

610,000,000

138,000,000

146,000,000

'

Valuation Allowance, Deferred Tax Asset, Change in Amount

'

-36,364,000,000

'

'

'

'

'

'

'

-36,200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated impairment charges

($30,438,000,000)

($29,897,000,000)

($2,752,000,000)

($30,438,000,000)

($29,897,000,000)

($2,752,000,000)

$0

$0

$0

'

($26,399,000,000)

($26,399,000,000)

$0

($3,072,000,000)

($3,072,000,000)

($2,482,000,000)

'

($967,000,000)

($426,000,000)

($270,000,000)

$0

$0

$0

Intangible_Assets_net_Details

Intangible Assets, net (Details) (USD $)

12 Months Ended

3 Months Ended

3 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

31-May-13

Mar. 31, 2013

Dec. 02, 2013

Nov. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

GMIO [Member]

GMIO [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

Intellectual Property [Member]

Intellectual Property [Member]

Intellectual Property [Member]

Intellectual Property [Member]

Intellectual Property [Member]

Intellectual Property [Member]

Intellectual Property [Member]

Intellectual Property [Member]

Trade Names [Member]

Trade Names [Member]

Trade Names [Member]

Customer Relationships [Member]

Customer Relationships [Member]

Customer Relationships [Member]

Customer Relationships [Member]

Contractual Rights [Member]

Contractual Rights [Member]

Contractual Rights [Member]

Contractual Rights [Member]

Customer Relationships and Trade Name [Member]

Customer Relationships and Trade Name [Member]

Customer Relationships and Trade Name [Member]

GM India [Member]

GM India [Member]

Property, Plant and Equipment [Member]

Level 3 [Member]

Cost of Sales [Member]

Selling, General and Administrative Expenses [Member]

Product development agreement with Peugeot S.A. [Member]

Product development agreement with Peugeot S.A. [Member]

Product development agreement with Peugeot S.A. [Member]

Product development agreement with Peugeot S.A. [Member]

Product development agreement with Peugeot S.A. [Member]

Product development agreement with Peugeot S.A. [Member]

GME [Member]

GMIO [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GME [Member]

GME [Member]

GME [Member]

Cost of Sales [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Cost of Sales [Member]

Level 3 [Member]

Cost of Sales [Member]

Level 3 [Member]

GM India [Member]

GM India [Member]

Cost of Sales [Member]

Selling, General and Administrative Expenses [Member]

Property, Plant and Equipment [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Level 3 [Member]

Cost of Sales [Member]

Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Gross

$14,129,000,000

$13,998,000,000

'

'

'

'

'

'

'

'

'

'

'

$8,210,000,000

$7,775,000,000

'

'

'

'

'

'

$4,466,000,000

$4,464,000,000

'

$1,108,000,000

$1,375,000,000

'

'

$345,000,000

$384,000,000

'

'

'

'

'

Finite-Lived Intangible Assets, Accumulated Amortization

8,557,000,000

7,364,000,000

'

'

'

'

'

'

'

'

'

'

'

7,308,000,000

6,320,000,000

'

'

'

'

'

'

559,000,000

431,000,000

'

364,000,000

327,000,000

'

'

326,000,000

286,000,000

'

'

'

'

'

Finite-Lived Intangible Assets, Net

5,572,000,000

6,634,000,000

'

'

'

'

'

'

'

'

'

'

'

902,000,000

1,455,000,000

'

'

'

'

'

'

3,907,000,000

4,033,000,000

'

744,000,000

1,048,000,000

'

'

19,000,000

98,000,000

'

'

'

'

'

Indefinite-Lived Intangible Assets (Excluding Goodwill)

96,000,000

175,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intangible Assets, Gross (Excluding Goodwill)

14,225,000,000

14,173,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intangible Assets, Net (Excluding Goodwill)

5,668,000,000

6,809,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase Obligation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

480,000,000

642,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payments to Acquire Intangible Assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

201,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-lived Intangible Assets Acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

594,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on Contracts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

49,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of Intangible Assets, Finite-lived

523,000,000

1,755,000,000

0

'

'

'

'

'

1,800,000,000

'

'

'

'

'

'

211,000,000

'

'

'

'

'

'

'

'

'

'

264,000,000

'

'

'

'

48,000,000

1,800,000,000

200,000,000

1,600,000,000

Amortization of Intangible Assets

1,281,000,000

1,568,000,000

1,804,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months

672,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Amortization Expense, Year Two

330,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Amortization Expense, Year Three

310,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Amortization Expense, Year Four

305,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Amortization Expense, Year Five

300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-lived Intangible Assets, Fair Value Disclosure

'

'

'

'

'

'

'

'

'

'

139,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

0

'

'

'

'

Tangible Asset Impairment Charges

'

'

'

901,000,000

3,793,000,000

81,000,000

'

280,000,000

'

3,700,000,000

'

3,500,000,000

200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset Impairment Charges

'

'

'

'

'

'

$383,000,000

'

$5,500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Revenue Growth Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

'

'

'

'

'

'

'

'

'

'

'

Pre-tax Royalty Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.14%

'

'

'

'

'

'

'

'

'

'

'

Discount Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21.25%

'

'

'

'

'

'

'

'

'

'

'

Variable_Interest_Entities_Det

Variable Interest Entities (Details) (USD $)

3 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

GM Financial [Member]

GM Financial [Member]

GM Korea and GM India [Member]

GM Korea and GM India [Member]

Consolidated VIE [Member]

Consolidated VIE [Member]

Nonconsolidated VIE [Member]

Nonconsolidated VIE [Member]

Nonconsolidated VIE [Member]

Nonconsolidated VIE [Member]

Nonconsolidated VIE [Member]

Nonconsolidated VIE [Member]

Nonconsolidated VIE [Member]

Nonconsolidated VIE [Member]

Consolidated VIE [Member]

Consolidated VIE [Member]

Automotive [Member]

Automotive [Member]

Ally Financial [Member]

Ally Financial [Member]

Ally Financial [Member]

Ally Financial [Member]

Ally Financial [Member]

Ally Financial [Member]

Consolidated VIE [Member]

Consolidated VIE [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Preferred Stock [Member]

Preferred Stock [Member]

Interest And Other Nonoperating Income Net [Member]

Level 3 [Member]

Interest And Other Nonoperating Income Net [Member]

Consolidated [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total Assets

'

'

'

'

'

'

'

'

'

'

'

$564,000,000

$436,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Total Liabilities

'

'

'

'

'

'

'

'

'

'

'

395,000,000

254,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Revenue, Net

'

'

'

'

'

'

'

'

152,092,000,000

150,295,000,000

148,866,000,000

1,100,000,000

1,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Net income

1,053,000,000

1,705,000,000

1,388,000,000

1,185,000,000

1,031,000,000

1,854,000,000

1,901,000,000

1,350,000,000

5,331,000,000

6,136,000,000

9,287,000,000

55,000,000

56,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Non-Recourse Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

242,000,000

368,000,000

Restricted Cash and Cash Equivalents

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,523,000,000

744,000,000

'

'

Securitized Assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

23,584,000,000

10,442,000,000

'

'

Securitization Notes Payable and Other Credit Facilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

19,448,000,000

9,378,000,000

'

'

Maximum Maturity Days for Highly Liquid Securities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'90 days

'

'

'

Non-consolidated VIE [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total Assets

'

'

'

'

'

'

'

'

'

'

'

'

'

169,000,000

351,000,000

'

'

'

'

'

'

'

'

'

'

Total Liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

838,000,000

1,900,000,000

'

'

'

'

'

'

'

'

'

'

Total Off-balance Sheet Arrangements

'

'

'

'

'

'

'

'

'

'

'

'

'

115,000,000

32,000,000

'

'

'

'

'

'

'

'

'

'

Investment in Ally Financial [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cost Method Investee Ownership Percent

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9.90%

'

'

'

'

'

'

'

'

Carrying Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

399,000,000

'

'

'

'

'

'

'

'

Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,300,000,000

'

'

'

'

'

'

Proceeds from Sale of Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

880,000,000

'

'

'

1,000,000,000

'

'

'

'

'

Gain on Sale of Ally Financial Preferred Stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$483,000,000

'

'

$339,000,000

'

'

'

'

Accrued_Liabilities_Other_Liab2

Accrued Liabilities, Other Liabilities and Deferred Income Taxes Accrued Liabilities and Other Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Accrued Liabilities, Current [Abstract]	'	'
Dealer and customer allowances, claims and discounts	$7,919	$7,722
Deposits primarily from rental car companies	4,713	4,250
Deferred revenue	1,276	1,326
Policy, product warranty and recall campaigns	2,559	2,919
Payrolls and employee benefits excluding postemployment benefits	2,285	2,144
Other	5,881	4,947
Total accrued liabilities	24,633	23,308
Other Liabilities, Noncurrent [Abstract]	'	'
Deferred revenue	1,249	1,169
Policy, product warranty and recall campaigns	4,655	4,285
Employee benefits excluding postemployment benefits	1,192	1,359
Postemployment benefits including facility idling reserves	1,216	1,518
Other	5,041	4,838
Total other liabilities and deferred income taxes	$13,353	$13,169

Accrued_Liabilities_Other_Liab3

Accrued Liabilities, Other Liabilities and Deferred Income Taxes Summary of Activity for Policy, Product Warranty and Recall Campaigns Liabilities (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Movement in Standard Product Warranty Accrual [Roll Forward]	'	'	'
Beginning balance	$7,204	$6,600	$6,789
Warranties issued and assumed in period	3,181	3,394	3,062
Payments	-3,063	-3,393	-3,740
Adjustments to pre-existing warranties	123	539	565
Effect of foreign currency and other	-231	64	-76
Ending balance	$7,214	$7,204	$6,600

ShortTerm_and_LongTerm_Debt_Ca

Short-Term and Long-Term Debt Carrying Amount and Fair Value (Details) (USD $)

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Oct. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

Carrying Value [Member]

Carrying Value [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Secured Debt [Member]

Secured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Capital Lease Obligations [Member]

Capital Lease Obligations [Member]

Carrying Value [Member]

Carrying Value [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Level 2 [Member]

Level 2 [Member]

Level 3 [Member]

Carrying Value [Member]

Carrying Value [Member]

Health Care Trust Notes [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Level 2 [Member]

Level 2 [Member]

Level 3 [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Carrying Value [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Fair Value Measurement [Member]

Senior Notes [Member]

Senior Notes [Member]

Health Care Trust Notes [Member]

Health Care Trust Notes [Member]

Other unsecured debt [Member]

Other unsecured debt [Member]

Securitization notes payable [Member]

Securitization notes payable [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Securitization notes payable [Member]

Securitization notes payable [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Senior Notes [Member]

Senior Notes [Member]

Bank lines and other unsecured debt [Member]

Bank lines and other unsecured debt [Member]

Senior Notes [Member]

Senior Notes [Member]

Bank lines and other unsecured debt [Member]

Bank lines and other unsecured debt [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt, Fair Value Disclosure

'

'

'

'

$6,837

$5,298

$6,800

$4,100

$1,200

$320

$1,182

$1,100

$5,852

$2,952

$4,500

$0

$0

$1,239

$1,352

$1,713

$965

$1,038

'

'

$29,046

$10,878

$29,248

$11,145

$23,000

$11,100

$6,200

$22,073

$9,378

$13,073

$9,024

$9,000

$354

$22,170

$9,525

$13,175

$9,171

$8,995

$354

$6,973

$1,500

$4,000

$1,500

$2,973

$0

$7,078

$1,620

$4,106

$1,620

$2,972

$0

Total Automotive Debt

'

'

7,137

5,172

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Short-term debt and current portion of long-term debt

564

1,748

564

1,748

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13,594

3,770

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt

6,573

3,424

6,573

3,424

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,452

7,108

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Available Line of Credit

10,404

11,119

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Rate Range, Minimum

0.00%

0.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Rate Range, Maximum

19.00%

19.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Interest Rate on Outstanding Short-term Debt

9.00%

3.70%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Interest Rate on Outstanding Long-term Debt

3.80%

4.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unamortized Discount (Premium), Net

$765

$1,100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

ShortTerm_and_LongTerm_Debt_Se

Short-Term and Long-Term Debt Secured Debt and Debt Covenant (Details) (USD $)

1 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

10 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Apr. 30, 2013

Dec. 31, 2013

Nov. 30, 2012

Dec. 31, 2013

Nov. 30, 2012

Dec. 31, 2013

Nov. 30, 2012

Oct. 31, 2012

Dec. 31, 2013

Nov. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Apr. 02, 2013

Dec. 31, 2013

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

InterGroup Elimination [Member]

Foreign Subsidiary Facility out of Covenants Compliance [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Ally International Operations - Europe and Latin America [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Three-year Revolving Credit Facility [Member]

Three-year Revolving Credit Facility [Member]

Five-year Revolving Credit Facility [Member]

Five-year Revolving Credit Facility [Member]

Five-year Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Three-year Revolving Credit Facility [Member]

Securitization notes payable [Member]

Securitization notes payable [Member]

Securitization notes payable [Member]

Ally International Operations - Europe and Latin America [Member]

Minimum [Member]

Maximum [Member]

Ally International Operations - Europe and Latin America [Member]

Line of Credit Facility [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Decrease in Automotive Debt

$682,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Credit Facilities Entered Into

'

'

2

'

'

'

'

'

'

2

'

'

'

'

'

'

'

'

Debt Instrument, Term

'

'

'

'

'3 years

'

'5 years

'5 years

'

'

'

'

'1 year

'3 years

'

'

'

'

Line of Credit Facility, Maximum Borrowing Capacity

'

77,000,000

'

11,000,000,000

'

5,500,000,000

'

5,000,000,000

5,500,000,000

'

'

'

'

'

'

'

'

'

Sublimit available to GM Financial

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,000,000,000

'

'

'

Sublimit available for multicurrency borrowing

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,500,000,000

'

'

'

Sublimit available for borrowing denominated in Brazilian Real

'

'

'

'

'

'

'

'

'

'

'

'

'

'

485,000,000

'

'

'

Sublimit available for issuance of letters of credit

'

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

1,500,000,000

'

'

'

Line of Credit Facility Subfacility, Amount Outstanding

'

'

'

'

'

'

'

'

'

'

'

'

'

'

625,000,000

'

'

'

Pledged Capital Stock of Subsidiaries

'

'

'

65.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of agencies needed to provide investment grade corporate rating

'

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt covenant, minimum consolidated liquidity requirement

'

'

'

4,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Covenant Minimum US Liquidity

'

'

'

2,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facitlity, Armotization Period after Revolving Period Ends

'

'

'

'

'

'

'

'

'

'

'

'

'

'6 years

'

'

'

'

Debt, Weighted Average Interest Rate

'

'

'

'

'

'

'

'

'

'

'

'

0.90%

15.90%

'

1.70%

'

'

Debt Instrument, Maturity Date Range, End

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8-Oct-21

'

'

Line Of Credit Increase Maximum Borrowing Capacity

'

'

'

'

'

'

'

'

'

'

1,300,000,000

'

'

'

'

'

'

'

Debt Instrument, Face Amount

'

'

'

'

'

'

'

'

'

'

'

7,300,000,000

'

'

'

6,800,000,000

'

2,300,000,000

Debt Instrument, Unamortized Discount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$47,000,000

$69,000,000

'

ShortTerm_and_LongTerm_Debt_Un

Short-Term and Long-Term Debt Unsecured Debt and Extinguishment of Debt (Details) (USD $)

12 Months Ended

1 Months Ended

1 Months Ended

4 Months Ended

10 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Oct. 31, 2013

Oct. 30, 2011

Apr. 30, 2013

Dec. 31, 2012

Apr. 30, 2013

Oct. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Automotive [Member]

Automotive [Member]

Automotive [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

Senior Notes Issued September 2013 [Member]

Senior Notes 2018 at 3.5% [Member]

Senior Notes 2023 at 4.875% [Member]

Senior Notes 2043 at 6.25% [Member]

Health Care Trust Notes [Member]

Health Care Trust Notes [Member]

Mandatorily Redeemable Preferred Stock [Member]

Mandatorily Redeemable Preferred Stock [Member]

Mandatorily Redeemable Preferred Stock [Member]

Mandatorily Redeemable Preferred Stock [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes [Member]

Senior Notes Issued May 2013 [Member]

Senior Notes Issued May 2013 [Member]

Senior Notes Issued May 2013 [Member]

Senior Notes Issued August 2012 [Member]

Bank lines and other unsecured debt [Member]

Bank lines and other unsecured debt [Member]

GM Korea [Member]

GM Korea [Member]

GM Korea [Member]

GM Korea [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Face Amount

'

'

'

'

'

'

$4,500,000,000

$1,500,000,000

$1,500,000,000

$1,500,000,000

'

'

'

'

'

'

'

'

'

$2,500,000,000

'

'

$1,000,000,000

'

'

Interest Rate, Stated Percentage

'

'

'

'

'

'

'

3.50%

4.88%

6.25%

7.00%

'

'

'

'

'

'

2.75%

6.75%

'

2.75%

4.25%

4.75%

1.10%

12.90%

Debt Instrument, Maturity Date Range, Start

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15-May-16

'

'

15-May-16

'

'

'

'

'

Debt Instrument, Maturity Date Range, End

'

'

'

'

'

'

'

2-Oct-18

2-Oct-23

2-Oct-43

'

'

'

'

'

'

15-May-23

'

'

15-May-23

'

'

'

'

'

Days After the Closing Date of the Debt Issuance for Registration Statement to be Declared Effective

'

'

'

'

'

'

'365 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Days After Effective Target Date Before Additional Interest is Charged

'

'

'

'

'

'

'30 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional Interest Above Stated Rate First 90 Day Period

'

'

'

'

'

'

0.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional Interest Above Stated Rate Subsequent 90 Day Period

'

'

'

'

'

'

0.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum Interest Above Stated Rate Subsequent 90 Day Period

'

'

'

'

'

'

0.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Unamortized Premium

'

'

'

'

'

'

'

'

'

'

'

42,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

HCT Notes Fair Value

'

'

'

'

'

'

'

'

'

'

'

1,100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of Debt

'

'

'

'

'

'

'

'

'

'

1,200,000,000

'

708,000,000

671,000,000

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Dividend Rate, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7.00%

2.50%

'

'

'

'

'

'

'

'

'

Extinguishment of Debt, Amount

'

'

'

1,800,000,000

514,000,000

1,000,000,000

'

'

'

'

'

'

468,000,000

429,000,000

'

'

'

'

'

'

'

'

'

'

'

Gains (Losses) on Extinguishment of Debt

($212,000,000)

($250,000,000)

$18,000,000

($212,000,000)

($250,000,000)

$18,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

ShortTerm_and_LongTerm_Debt_In

Short-Term and Long-Term Debt Interest Expense and LT Debt Maturities (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Instrument [Line Items]	'	'	'
Interest Expense	$1,049	$772	$744
Long-term Debt, Maturities, 2014	14,137	'	'
Long-term Debt, Maturities, 2015	6,620	'	'
Long-term Debt, Maturities, 2016	4,308	'	'
Long-term Debt, Maturities, 2017	2,833	'	'
Long-term Debt, Maturities, 2018	3,275	'	'
Long-term Debt, Maturities, Thereafter	5,775	'	'
Long-term Debt, Maturities, Repayments of Principal	36,948	'	'
Automotive [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Interest Expense	334	489	540
Long-term Debt, Maturities, 2014	543	'	'
Long-term Debt, Maturities, 2015	147	'	'
Long-term Debt, Maturities, 2016	109	'	'
Long-term Debt, Maturities, 2017	496	'	'
Long-term Debt, Maturities, 2018	1,582	'	'
Long-term Debt, Maturities, Thereafter	5,025	'	'
Long-term Debt, Maturities, Repayments of Principal	7,902	'	'
Future interest payments on automotive capital lease obligations	578	'	'
GM Financial [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Financing Interest Expense	715	283	204
Long-term Debt, Maturities, 2014	13,594	'	'
Long-term Debt, Maturities, 2015	6,473	'	'
Long-term Debt, Maturities, 2016	4,199	'	'
Long-term Debt, Maturities, 2017	2,337	'	'
Long-term Debt, Maturities, 2018	1,693	'	'
Long-term Debt, Maturities, Thereafter	750	'	'
Long-term Debt, Maturities, Repayments of Principal	$29,046	'	'

Pensions_And_Other_Postretirem2

Pensions And Other Postretirement Benefits Contributions (Details) (USD $)	1 Months Ended		12 Months Ended
Share data in Millions, unless otherwise specified	Jul. 31, 2011	Jan. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Contribution of common stock to U.S. hourly and salaried pension plans	'	'	'	'	$1,864,000,000
Defined Contribution Plan, Total Employer Contributions	'	'	502,000,000	352,000,000	297,000,000
Canadian Healthcare Trust [Member]	'	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Employer contributions	'	'	'	'	1,900,000,000
Defined Benefit Plan Contributions by Employer Restricted Cash	'	'	'	'	782,000,000
Defined Benefit Plan Contributions by Employer Notes Payable	'	'	'	'	1,100,000,000
Pension Plan, Defined Benefit [Member]	'	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Defined Benefit Plan, Years of Service	'	'	'30 years	'	'
Employer contributions	'	'	1,014,000,000	3,275,000,000	2,798,000,000
US Pension Plans [Member]	'	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Estimated Future Employer Contributions in Next Fiscal Year	'	'	100,000,000	'	'
Employer contributions	'	'	128,000,000	2,420,000,000	1,962,000,000
Stock Issued to US Pension Plan	'	61	'	'	'
Contribution of common stock to U.S. hourly and salaried pension plans	1,900,000,000	2,200,000,000	'	'	1,864,000,000
Plan participants' contributions	'	'	0	0	'
Non-US Pension Plans [Member]	'	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Estimated Future Employer Contributions in Next Fiscal Year	'	'	749,000,000	'	'
Employer contributions	'	'	886,000,000	855,000,000	836,000,000
Plan participants' contributions	'	'	4,000,000	7,000,000	'
US OPEB Plans [Member]	'	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Employer contributions	'	'	393,000,000	432,000,000	426,000,000
Plan participants' contributions	'	'	29,000,000	4,000,000	13,000,000
Total Contributions	'	'	$422,000,000	$436,000,000	$439,000,000

Pensions_And_Other_Postretirem3

Pensions And Other Postretirement Benefits Significant Plan Amendments (Details) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

Dec. 31, 2011

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2012

Mar. 31, 2011

Jun. 30, 2012

Jun. 30, 2012

Oct. 31, 2011

Oct. 31, 2011

Sep. 30, 2011

Canadian Healthcare Trust [Member]

U.S. Salaried Defined Benefit Life Insurance Plan [Member]

U.S. Salaried Defined Benefit Pension Plan [Member]

U.S. Salaried Defined Benefit Pension Plan [Member]

U.S. Salaried Defined Benefit Pension Plan [Member]

U.S. Salaried Defined Benefit Pension Plan [Member]

Non-US Pension Plans [Member]

Non-US Pension Plans [Member]

Non-US Pension Plans [Member]

Non-US Pension Plans [Member]

Non-US Pension Plans [Member]

Canadian Salaried Defined Benefit Pension Plan [Member]

Canadian Salaried Healthcare Plan [Member]

Canadian Hourly Healthcare Plan [Member]

Canadian Hourly Healthcare Plan [Member]

Legal Services Plan [Member]

Settlement With Insurance Company [Member]

Settlement With Two Insurance Companies [Member]

GME [Member]

GME [Member]

Canadian Healthcare Trust [Member]

Defined Benefit Plan Disclosure [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Actuarial loss component of AOCI, before Tax

'

$236,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pre-tax gain

'

83,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Decrease to Liability Due to Curtailments

'

'

'

309,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Settlements, Benefit Obligation

'

'

'

30,600,000,000

25,100,000,000

1,900,000,000

'

'

'

'

'

'

'

'

'

'

Total Lump-sum Payments

'

'

430,000,000

3,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Pension Settlement Gain (Loss), pre-tax

'

'

128,000,000

-2,600,000,000

'

'

'

'

'

'

'

'

'

749,000,000

'

'

Pension Settlement Gain (Loss), after tax

'

'

'

-2,200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated Other Comprehensive Loss, before Tax

'

'

'

377,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Premium Paid

'

'

'

2,100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Tax benefit

'

'

'

413,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Statutory tax benefit

'

'

'

1,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Tax expense

'

'

'

596,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Loan to Plan

'

'

'

2,200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Loan contributed to the Plan

'

'

30,000,000

1,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Loan Made to Plan and Repaid

'

'

60,000,000

430,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Loan made to plan, oustanding

'

'

'

90,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Liability (Increase) Decrease Due to Amendments

'

319,000,000

'

'

'

'

4,000,000

-139,000,000

'

'

'

-84,000,000

28,000,000

'

'

266,000,000

Benefit Obligation

'

'

'

'

'

'

27,528,000,000

29,301,000,000

25,765,000,000

'

'

'

'

3,100,000,000

'

'

Employer contributions

1,900,000,000

'

'

'

'

'

886,000,000

855,000,000

836,000,000

'

'

'

'

'

1,900,000,000

'

Accumulated Other Comprehensive Loss, before Tax

'

'

'

'

'

'

'

'

'

'

'

'

'

414,000,000

'

'

Defined Benefit Plan, Interim Remeasurement

'

'

'

'

'

'

'

'

'

$150,000,000

($272,000,000)

'

'

'

'

'

Pensions_and_OPEB_Obligations_

Pensions and OPEB Obligations and Plan Assets (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
US Pension Plans [Member]	'	'	'
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]	'	'	'
Beginning benefit obligation	$82,110	$108,562	'
Service Cost	298	452	'
Interest Cost	2,837	4,055	4,915
Plan participants' contributions	0	0	'
Amendments	0	-32	'
Actuarial (gains) losses	-7,661	8,432	'
Benefits paid	-5,719	-8,422	'
Foreign currency translation adjustment	0	0	'
Business combinations	0	0	'
Curtailments, settlements, and other	-385	-30,937	'
Ending benefit obligation	71,480	82,110	108,562
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]	'	'	'
Beginning fair value of plan assets	68,085	94,349	'
Actual return on plan assets	2,107	10,332	'
Employer contributions	128	2,420	1,962
Plan participants' contributions	0	0	'
Benefits paid	-5,719	-8,422	'
Foreign currency translation adjustments	0	0	'
Business combinations	0	0	'
Settlements	-435	-30,629	'
Other	0	35	'
Ending fair value of plan assets	64,166	68,085	94,349
Ending funded status	-7,314	-14,025	'
Amounts Recognized in Consolidated Balance Sheet [Abstract]	'	'	'
Non-current, Assets	0	0	'
Current Liabilities	-131	-95	'
Non-current Liabilities	-7,183	-13,930	'
Net Amounts Recorded	-7,314	-14,025	'
Amount Recorded in Accumulated Other Income (Loss) [Abstract]	'	'	'
Net actuarial gain (loss)	4,747	-1,434	'
Net Prior Service (Cost) Credit	38	42	'
Total recorded in Accumulated other comprehensive gain (loss)	4,785	-1,392	'
Non-US Pension Plans [Member]	'	'	'
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]	'	'	'
Beginning benefit obligation	29,301	25,765	'
Service Cost	394	383	399
Interest Cost	1,010	1,110	1,215
Plan participants' contributions	4	7	'
Amendments	-4	139	'
Actuarial (gains) losses	-1,009	2,774	'
Benefits paid	-1,683	-1,551	'
Foreign currency translation adjustment	-528	682	'
Business combinations	128	0	'
Curtailments, settlements, and other	-85	-8	'
Ending benefit obligation	27,528	29,301	25,765
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]	'	'	'
Beginning fair value of plan assets	15,541	14,541	'
Actual return on plan assets	988	1,344	'
Employer contributions	886	855	836
Plan participants' contributions	4	7	'
Benefits paid	-1,683	-1,551	'
Foreign currency translation adjustments	-692	389	'
Business combinations	26	0	'
Settlements	-87	-207	'
Other	3	163	'
Ending fair value of plan assets	14,986	15,541	14,541
Ending funded status	-12,542	-13,760	'
Amounts Recognized in Consolidated Balance Sheet [Abstract]	'	'	'
Non-current, Assets	137	73	'
Current Liabilities	-379	-343	'
Non-current Liabilities	-12,300	-13,490	'
Net Amounts Recorded	-12,542	-13,760	'
Amount Recorded in Accumulated Other Income (Loss) [Abstract]	'	'	'
Net actuarial gain (loss)	-3,379	-4,786	'
Net Prior Service (Cost) Credit	-87	-111	'
Total recorded in Accumulated other comprehensive gain (loss)	-3,466	-4,897	'
US OPEB Plans [Member]	'	'	'
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]	'	'	'
Beginning benefit obligation	6,271	5,822	'
Service Cost	24	23	23
Interest Cost	217	234	265
Plan participants' contributions	29	4	13
Amendments	0	0	'
Actuarial (gains) losses	-757	622	'
Benefits paid	-422	-436	'
Foreign currency translation adjustment	0	0	'
Business combinations	0	0	'
Curtailments, settlements, and other	-252	2	'
Ending benefit obligation	5,110	6,271	5,822
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]	'	'	'
Beginning fair value of plan assets	0	0	'
Actual return on plan assets	0	0	'
Employer contributions	393	432	426
Plan participants' contributions	29	4	13
Benefits paid	-422	-436	'
Foreign currency translation adjustments	0	0	'
Business combinations	0	0	'
Settlements	0	0	'
Other	0	0	'
Ending fair value of plan assets	0	0	0
Ending funded status	-5,110	-6,271	'
Amounts Recognized in Consolidated Balance Sheet [Abstract]	'	'	'
Non-current, Assets	0	0	'
Current Liabilities	-368	-406	'
Non-current Liabilities	-4,742	-5,865	'
Net Amounts Recorded	-5,110	-6,271	'
Amount Recorded in Accumulated Other Income (Loss) [Abstract]	'	'	'
Net actuarial gain (loss)	-542	-1,573	'
Net Prior Service (Cost) Credit	19	135	'
Total recorded in Accumulated other comprehensive gain (loss)	-523	-1,438	'
Non-US OPEB Plans [Member]	'	'	'
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]	'	'	'
Beginning benefit obligation	1,528	1,490	'
Service Cost	13	16	30
Interest Cost	57	63	186
Plan participants' contributions	2	1	'
Amendments	-4	-52	'
Actuarial (gains) losses	-210	13	'
Benefits paid	-53	-55	'
Foreign currency translation adjustment	-98	30	'
Business combinations	0	0	'
Curtailments, settlements, and other	3	22	'
Ending benefit obligation	1,238	1,528	1,490
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]	'	'	'
Beginning fair value of plan assets	0	0	'
Actual return on plan assets	0	0	'
Employer contributions	51	54	'
Plan participants' contributions	2	1	'
Benefits paid	-53	-55	'
Foreign currency translation adjustments	0	0	'
Business combinations	0	0	'
Settlements	0	0	'
Other	0	0	'
Ending fair value of plan assets	0	0	0
Ending funded status	-1,238	-1,528	'
Amounts Recognized in Consolidated Balance Sheet [Abstract]	'	'	'
Non-current, Assets	0	0	'
Current Liabilities	-83	-84	'
Non-current Liabilities	-1,155	-1,444	'
Net Amounts Recorded	-1,238	-1,528	'
Amount Recorded in Accumulated Other Income (Loss) [Abstract]	'	'	'
Net actuarial gain (loss)	47	-188	'
Net Prior Service (Cost) Credit	91	118	'
Total recorded in Accumulated other comprehensive gain (loss)	$138	($70)	'

Pensions_And_Other_Postretirem4

Pensions And Other Postretirement Benefits Accumulated Benefit Oblligations and Projected Benefit Obligations (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
US Pension Plans [Member]	'	'
ABO and PBO [Line Items]	'	'
ABO	$71,461	$82,103
Plans with ABO in Excess of Plan Assets [Abstract]	'	'
ABO	71,461	82,103
Fair Value of Plan Assets	64,166	68,085
Plans with PBO in Excess of Plan Assets [Abstract]	'	'
PBO	71,480	82,110
Fair Value of Plan Assets	64,166	68,085
Non-US Pension Plans [Member]	'	'
ABO and PBO [Line Items]	'	'
ABO	27,069	28,880
Plans with ABO in Excess of Plan Assets [Abstract]	'	'
ABO	25,897	28,156
Fair Value of Plan Assets	13,663	14,702
Plans with PBO in Excess of Plan Assets [Abstract]	'	'
PBO	26,788	28,537
Fair Value of Plan Assets	$14,109	$14,704

Pensions_And_Other_Postretirem5

Pensions And Other Postretirement Benefits Components of Expense and Assumptions (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
US Pension Plans [Member]	'	'	'	'
Components of Expense [Abstract]	'	'	'	'
Service Cost Including Administrative Expenses	'	$395	$590	$632
Service Cost	'	298	452	'
Interest Cost	'	2,837	4,055	4,915
Expected Return on Plan Assets	'	-3,562	-5,029	-6,692
Amortization of Prior Service Cost (Credit)	'	-4	-1	-2
Recognized net actuarial loss	'	6	2	0
Curtailments, Settlements and Other (Gains) Losses	'	-77	2,580	-23
Net Periodic Pension and OPEB Expense	'	-405	2,197	-1,170
Administrative Expense	'	97	138	138
Weighted-average assumptions used to determine benefit obligations [Abstract]	'	'	'	'
Discount rate	'	4.46%	3.59%	4.15%
Rate of compensation increase	'	'	'	4.50%
Weighted-average assumptions used to determine net expense [Abstract]	'	'	'	'
Discount rate	'	3.59%	4.06%	4.96%
Expected return on plan assets	6.50%	5.77%	6.18%	8.00%
Rate of compensation increase	'	'	4.50%	3.96%
Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year [Abstract]	'	'	'	'
Amortization of prior service cost (credit)	'	-4	'	'
Amortization of net actuarial (gain) loss	'	-91	'	'
Total amount to be amortized from Accumulated other comprehensive (income) loss	'	-95	'	'
Non-US Pension Plans [Member]	'	'	'	'
Components of Expense [Abstract]	'	'	'	'
Service Cost Including Administrative Expenses	'	425	411	'
Service Cost	'	394	383	399
Interest Cost	'	1,010	1,110	1,215
Expected Return on Plan Assets	'	-823	-870	-925
Amortization of Prior Service Cost (Credit)	'	19	1	-2
Recognized net actuarial loss	'	208	35	0
Curtailments, Settlements and Other (Gains) Losses	'	-6	71	-7
Net Periodic Pension and OPEB Expense	'	833	758	680
Administrative Expense	'	31	28	'
Weighted-average assumptions used to determine benefit obligations [Abstract]	'	'	'	'
Discount rate	'	4.10%	3.70%	4.50%
Rate of compensation increase	'	2.90%	2.77%	3.11%
Weighted-average assumptions used to determine net expense [Abstract]	'	'	'	'
Discount rate	'	3.69%	4.45%	5.16%
Expected return on plan assets	'	5.70%	6.20%	6.50%
Rate of compensation increase	'	2.77%	3.15%	3.25%
Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year [Abstract]	'	'	'	'
Amortization of prior service cost (credit)	'	19	'	'
Amortization of net actuarial (gain) loss	'	159	'	'
Total amount to be amortized from Accumulated other comprehensive (income) loss	'	178	'	'
US OPEB Plans [Member]	'	'	'	'
Components of Expense [Abstract]	'	'	'	'
Service Cost	'	24	23	23
Interest Cost	'	217	234	265
Expected Return on Plan Assets	'	0	0	0
Amortization of Prior Service Cost (Credit)	'	-116	-116	-39
Recognized net actuarial loss	'	85	52	6
Curtailments, Settlements and Other (Gains) Losses	'	-62	0	0
Net Periodic Pension and OPEB Expense	'	148	193	255
Weighted-average assumptions used to determine benefit obligations [Abstract]	'	'	'	'
Discount rate	'	4.52%	3.68%	4.24%
Rate of compensation increase	'	'	4.50%	4.50%
Weighted-average assumptions used to determine net expense [Abstract]	'	'	'	'
Discount rate	'	3.69%	4.24%	5.05%
Rate of compensation increase	'	4.50%	4.50%	4.50%
Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year [Abstract]	'	'	'	'
Amortization of prior service cost (credit)	'	-2	'	'
Amortization of net actuarial (gain) loss	'	14	'	'
Total amount to be amortized from Accumulated other comprehensive (income) loss	'	12	'	'
Non-US OPEB Plans [Member]	'	'	'	'
Components of Expense [Abstract]	'	'	'	'
Service Cost	'	13	16	30
Interest Cost	'	57	63	186
Expected Return on Plan Assets	'	0	0	0
Amortization of Prior Service Cost (Credit)	'	-14	-12	-9
Recognized net actuarial loss	'	6	6	0
Curtailments, Settlements and Other (Gains) Losses	'	0	11	-749
Net Periodic Pension and OPEB Expense	'	62	84	-542
Weighted-average assumptions used to determine benefit obligations [Abstract]	'	'	'	'
Discount rate	'	4.71%	3.97%	4.37%
Rate of compensation increase	'	4.21%	4.21%	4.20%
Weighted-average assumptions used to determine net expense [Abstract]	'	'	'	'
Discount rate	'	3.97%	4.31%	5.01%
Rate of compensation increase	'	4.21%	4.21%	4.42%
Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year [Abstract]	'	'	'	'
Amortization of prior service cost (credit)	'	-14	'	'
Amortization of net actuarial (gain) loss	'	-6	'	'
Total amount to be amortized from Accumulated other comprehensive (income) loss	'	($20)	'	'

Pensions_And_Other_Postretirem6

Pensions And Other Postretirement Benefits Target Allocation tables (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	100.00%	100.00%
Non-US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	100.00%	100.00%
Equity Securities [Member] | US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	19.00%	19.00%
Equity Securities [Member] | Non-US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	28.00%	30.00%
Debt Securities [Member] | US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	58.00%	60.00%
Debt Securities [Member] | Non-US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	49.00%	53.00%
Other Investments [Member] | US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	23.00%	21.00%
Other Investments [Member] | Non-US Pension Plans [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Defined Benefit Plan, Target Plan Asset Allocations	23.00%	17.00%

Pensions_And_Other_Postretirem7

Pensions And Other Postretirement Benefits Assets and Fair Value Measurements (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Pension Plan, Defined Benefit [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	$78,664	$83,992	'
Liabilities	-407	-1,190	'
Net plan assets subject to leveling	78,257	82,802	'
Other plan assets and liabilities	895	824	'
Net Plan Assets	79,152	83,626	'
Pension Plan, Defined Benefit [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	567	702	'
Pension Plan, Defined Benefit [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	12,132	11,935	'
Pension Plan, Defined Benefit [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	18,389	21,557	'
Pension Plan, Defined Benefit [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	22,889	21,791	'
Pension Plan, Defined Benefit [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	377	1,966	'
Pension Plan, Defined Benefit [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	-15	'
Pension Plan, Defined Benefit [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2,364	2,735	'
Pension Plan, Defined Benefit [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,087	1,764	'
Pension Plan, Defined Benefit [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	5,018	4,395	'
Pension Plan, Defined Benefit [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2,224	1,678	'
Pension Plan, Defined Benefit [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	6,765	6,781	'
Pension Plan, Defined Benefit [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	5,951	6,219	'
Pension Plan, Defined Benefit [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	680	728	'
Pension Plan, Defined Benefit [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	53	1,568	'
Liabilities	-253	-1,010	'
Pension Plan, Defined Benefit [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	168	173	'
Liabilities	-154	-165	'
US Pension Plans [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	63,852	68,734	'
Liabilities	-339	-1,149	'
Net plan assets subject to leveling	63,513	67,585	'
Other plan assets and liabilities	653	500	'
Net Plan Assets	64,166	68,085	94,349
US Pension Plans [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	411	551	'
US Pension Plans [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	10,310	9,708	'
US Pension Plans [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	14,971	17,835	'
US Pension Plans [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	20,467	19,193	'
US Pension Plans [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	310	1,909	'
US Pension Plans [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	-15	'
US Pension Plans [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	306	514	'
US Pension Plans [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	148	704	'
US Pension Plans [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	4,285	3,768	'
US Pension Plans [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,552	1,643	'
US Pension Plans [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	6,335	6,400	'
US Pension Plans [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	4,521	4,747	'
US Pension Plans [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	62	63	'
US Pension Plans [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	51	1,568	'
Liabilities	-241	-1,006	'
US Pension Plans [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	123	131	'
Liabilities	-98	-128	'
US Pension Plans [Member] | Level 1 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	10,740	10,178	'
Liabilities	-22	-25	'
Net plan assets subject to leveling	10,718	10,153	'
US Pension Plans [Member] | Level 1 [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	10,234	9,663	'
GM Common Stock Held in Trust	2	1,400	'
US Pension Plans [Member] | Level 1 [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	0	'
US Pension Plans [Member] | Level 1 [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	72	66	'
US Pension Plans [Member] | Level 1 [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	27	16	'
US Pension Plans [Member] | Level 1 [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	390	412	'
US Pension Plans [Member] | Level 1 [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 1 [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	5	15	'
Liabilities	-22	-21	'
US Pension Plans [Member] | Level 1 [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	12	6	'
Liabilities	0	-4	'
US Pension Plans [Member] | Level 2 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	37,278	42,597	'
Liabilities	-311	-1,115	'
Net plan assets subject to leveling	36,967	41,482	'
US Pension Plans [Member] | Level 2 [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	411	551	'
US Pension Plans [Member] | Level 2 [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	70	26	'
US Pension Plans [Member] | Level 2 [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	14,971	17,835	'
US Pension Plans [Member] | Level 2 [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	20,409	19,116	'
US Pension Plans [Member] | Level 2 [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	238	1,804	'
US Pension Plans [Member] | Level 2 [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	-15	'
US Pension Plans [Member] | Level 2 [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	190	253	'
US Pension Plans [Member] | Level 2 [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	8	498	'
US Pension Plans [Member] | Level 2 [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 2 [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	820	837	'
US Pension Plans [Member] | Level 2 [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 2 [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	4	0	'
US Pension Plans [Member] | Level 2 [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 2 [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	46	1,553	'
Liabilities	-213	-977	'
US Pension Plans [Member] | Level 2 [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	111	124	'
Liabilities	-98	-123	'
US Pension Plans [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	15,834	15,959	'
Liabilities	-6	-9	'
Net plan assets subject to leveling	15,828	15,950	27,263
US Pension Plans [Member] | Level 3 [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
US Pension Plans [Member] | Level 3 [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	6	19	46
US Pension Plans [Member] | Level 3 [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	3
US Pension Plans [Member] | Level 3 [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	58	77	352
US Pension Plans [Member] | Level 3 [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	72	105	197
US Pension Plans [Member] | Level 3 [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	0	'
US Pension Plans [Member] | Level 3 [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	44	195	521
US Pension Plans [Member] | Level 3 [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	113	190	1,210
US Pension Plans [Member] | Level 3 [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	4,285	3,768	5,918
US Pension Plans [Member] | Level 3 [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	732	806	2,270
US Pension Plans [Member] | Level 3 [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	6,335	6,400	8,444
US Pension Plans [Member] | Level 3 [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	4,127	4,335	5,092
US Pension Plans [Member] | Level 3 [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	62	63	0
US Pension Plans [Member] | Level 3 [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Liabilities	-6	-8	'
Net plan assets subject to leveling	-6	-8	7
US Pension Plans [Member] | Level 3 [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	1	'
Liabilities	0	-1	'
Net plan assets subject to leveling	'	0	-6
Non-US Pension Plans [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	14,812	15,258	'
Liabilities	-68	-41	'
Net plan assets subject to leveling	14,744	15,217	'
Other plan assets and liabilities	242	324	'
Net Plan Assets	14,986	15,541	14,541
Non-US Pension Plans [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	156	151	'
Non-US Pension Plans [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,822	2,227	'
Non-US Pension Plans [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	3,418	3,722	'
Non-US Pension Plans [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2,422	2,598	'
Non-US Pension Plans [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	67	57	'
Non-US Pension Plans [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	0	'
Non-US Pension Plans [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2,058	2,221	'
Non-US Pension Plans [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	939	1,060	'
Non-US Pension Plans [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	733	627	'
Non-US Pension Plans [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	672	35	'
Non-US Pension Plans [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	430	381	'
Non-US Pension Plans [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,430	1,472	'
Non-US Pension Plans [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	618	665	'
Non-US Pension Plans [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2	0	'
Liabilities	-12	-4	'
Non-US Pension Plans [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	45	42	'
Liabilities	-56	-37	'
Non-US Pension Plans [Member] | Level 1 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,960	2,460	'
Liabilities	-12	-5	'
Net plan assets subject to leveling	1,948	2,455	'
Non-US Pension Plans [Member] | Level 1 [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,816	2,227	'
Non-US Pension Plans [Member] | Level 1 [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	128	212	'
Non-US Pension Plans [Member] | Level 1 [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	13	19	'
Non-US Pension Plans [Member] | Level 1 [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 1 [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1	0	'
Liabilities	-12	-4	'
Non-US Pension Plans [Member] | Level 1 [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2	2	'
Liabilities	0	-1	'
Non-US Pension Plans [Member] | Level 2 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	9,640	9,684	'
Liabilities	-56	-36	'
Net plan assets subject to leveling	9,584	9,648	'
Non-US Pension Plans [Member] | Level 2 [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	156	151	'
Non-US Pension Plans [Member] | Level 2 [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	6	0	'
Non-US Pension Plans [Member] | Level 2 [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	3,418	3,722	'
Non-US Pension Plans [Member] | Level 2 [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2,410	2,596	'
Non-US Pension Plans [Member] | Level 2 [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	65	54	'
Non-US Pension Plans [Member] | Level 2 [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	0	'
Non-US Pension Plans [Member] | Level 2 [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,930	2,009	'
Non-US Pension Plans [Member] | Level 2 [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	927	1,046	'
Non-US Pension Plans [Member] | Level 2 [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 2 [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	672	35	'
Non-US Pension Plans [Member] | Level 2 [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 2 [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	12	31	'
Non-US Pension Plans [Member] | Level 2 [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 2 [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1	0	'
Liabilities	0	0	'
Non-US Pension Plans [Member] | Level 2 [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	43	40	'
Liabilities	-56	-36	'
Non-US Pension Plans [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	3,212	3,114	'
Liabilities	0	0	'
Net plan assets subject to leveling	3,212	3,114	'
Non-US Pension Plans [Member] | Level 3 [Member] | Cash equivalents and other short-term investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 3 [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Non-US Pension Plans [Member] | Level 3 [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	1
Non-US Pension Plans [Member] | Level 3 [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	12	2	4
Non-US Pension Plans [Member] | Level 3 [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	2	3	4
Non-US Pension Plans [Member] | Level 3 [Member] | Mortgage and asset-backed securities [Member] | Short [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Liabilities	'	0	'
Non-US Pension Plans [Member] | Level 3 [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	146
Non-US Pension Plans [Member] | Level 3 [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	12	14	20
Non-US Pension Plans [Member] | Level 3 [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	733	627	585
Non-US Pension Plans [Member] | Level 3 [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	247
Non-US Pension Plans [Member] | Level 3 [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	430	381	298
Non-US Pension Plans [Member] | Level 3 [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	1,405	1,422	1,345
Non-US Pension Plans [Member] | Level 3 [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	618	665	428
Non-US Pension Plans [Member] | Level 3 [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Liabilities	0	0	'
Non-US Pension Plans [Member] | Level 3 [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assets	0	0	'
Liabilities	$0	$0	'

Pensions_And_Other_Postretirem8

Pensions And Other Postretirement Benefits Pension Level 3 Assets rollforward (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
US Pension Plans [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	$63,852	$68,734	'
Net plan assets subject to leveling	63,513	67,585	'
Net Realized / Unrealized Gains (Losses)	2,107	10,332	'
Effect of Foreign Currency	0	0	'
US Pension Plans [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	15,834	15,959	'
Net plan assets subject to leveling	15,828	15,950	27,263
Net Realized / Unrealized Gains (Losses)	1,945	1,799	'
Purchases, Sales and Settlements, Net	-2,067	-13,102	'
Transfers Into/Out of Level 3	0	-10	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	1,160	317	'
US Pension Plans [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	10,310	9,708	'
US Pension Plans [Member] | Common and preferred stocks [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	6	19	46
Net Realized / Unrealized Gains (Losses)	3	1	'
Purchases, Sales and Settlements, Net	-16	-25	'
Transfers Into/Out of Level 3	0	-3	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	1	3	'
US Pension Plans [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	14,971	17,835	'
US Pension Plans [Member] | Government and agency debt securities [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	0	3
Net Realized / Unrealized Gains (Losses)	'	-1	'
Purchases, Sales and Settlements, Net	'	-2	'
Transfers Into/Out of Level 3	'	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	'	0	'
US Pension Plans [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	20,467	19,193	'
US Pension Plans [Member] | Corporate Debt Securities [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	58	77	352
Net Realized / Unrealized Gains (Losses)	5	1	'
Purchases, Sales and Settlements, Net	-24	-258	'
Transfers Into/Out of Level 3	0	-18	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	-2	-35	'
US Pension Plans [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	310	1,909	'
US Pension Plans [Member] | Mortgage and asset-backed securities [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	72	105	197
Net Realized / Unrealized Gains (Losses)	1	34	'
Purchases, Sales and Settlements, Net	-34	-120	'
Transfers Into/Out of Level 3	0	-6	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	-1	24	'
US Pension Plans [Member] | Group annuity contracts [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	'	0	3,209
Net Realized / Unrealized Gains (Losses)	'	77	'
Purchases, Sales and Settlements, Net	'	-3,286	'
Transfers Into/Out of Level 3	'	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	'	0	'
US Pension Plans [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	306	514	'
US Pension Plans [Member] | Equity funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	44	195	521
Net Realized / Unrealized Gains (Losses)	-3	51	'
Purchases, Sales and Settlements, Net	-148	-414	'
Transfers Into/Out of Level 3	0	37	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	0	18	'
US Pension Plans [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	148	704	'
US Pension Plans [Member] | Fixed income funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	113	190	1,210
Net Realized / Unrealized Gains (Losses)	17	47	'
Purchases, Sales and Settlements, Net	-94	-1,067	'
Transfers Into/Out of Level 3	0	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	11	-3	'
US Pension Plans [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	4,285	3,768	'
US Pension Plans [Member] | Funds of hedge funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	4,285	3,768	5,918
Net Realized / Unrealized Gains (Losses)	498	310	'
Purchases, Sales and Settlements, Net	19	-2,460	'
Transfers Into/Out of Level 3	0	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	497	239	'
US Pension Plans [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	1,552	1,643	'
US Pension Plans [Member] | Other investment funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	732	806	2,270
Net Realized / Unrealized Gains (Losses)	40	55	'
Purchases, Sales and Settlements, Net	-114	-1,531	'
Transfers Into/Out of Level 3	0	12	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	29	-2	'
US Pension Plans [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	6,335	6,400	'
US Pension Plans [Member] | Private equity and debt investments [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	6,335	6,400	8,444
Net Realized / Unrealized Gains (Losses)	926	1,022	'
Purchases, Sales and Settlements, Net	-991	-3,038	'
Transfers Into/Out of Level 3	0	-28	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	436	154	'
US Pension Plans [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	4,521	4,747	'
US Pension Plans [Member] | Real estate investments [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	4,127	4,335	5,092
Net Realized / Unrealized Gains (Losses)	458	198	'
Purchases, Sales and Settlements, Net	-666	-955	'
Transfers Into/Out of Level 3	0	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	190	-80	'
US Pension Plans [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	62	63	'
US Pension Plans [Member] | Other investments [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	62	63	0
Net Realized / Unrealized Gains (Losses)	-2	0	'
Purchases, Sales and Settlements, Net	1	63	'
Transfers Into/Out of Level 3	0	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	-2	0	'
US Pension Plans [Member] | Total assets [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	15,834	15,958	27,262
Net Realized / Unrealized Gains (Losses)	1,943	1,795	'
Purchases, Sales and Settlements, Net	-2,067	-13,093	'
Transfers Into/Out of Level 3	0	-6	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	1,159	318	'
US Pension Plans [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	51	1,568	'
US Pension Plans [Member] | Interest Rate Contract [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	0	'
Net plan assets subject to leveling	-6	-8	7
Net Realized / Unrealized Gains (Losses)	2	3	'
Purchases, Sales and Settlements, Net	0	-14	'
Transfers Into/Out of Level 3	0	-4	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	1	-1	'
US Pension Plans [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	123	131	'
US Pension Plans [Member] | Foreign Exchange and Other Contract [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	1	'
Net plan assets subject to leveling	'	0	-6
Net Realized / Unrealized Gains (Losses)	'	1	'
Purchases, Sales and Settlements, Net	'	5	'
Transfers Into/Out of Level 3	'	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	'	0	'
Non-US Pension Plans [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	14,812	15,258	'
Net plan assets subject to leveling	14,744	15,217	'
Net Realized / Unrealized Gains (Losses)	988	1,344	'
Effect of Foreign Currency	-692	389	'
Non-US Pension Plans [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	3,212	3,114	'
Net plan assets subject to leveling	3,212	3,114	'
Non-US Pension Plans [Member] | Common and preferred stocks [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	1,822	2,227	'
Non-US Pension Plans [Member] | Common and preferred stocks [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	0	'
Non-US Pension Plans [Member] | Government and agency debt securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	3,418	3,722	'
Non-US Pension Plans [Member] | Government and agency debt securities [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	0	1
Net Realized / Unrealized Gains (Losses)	'	0	'
Purchases, Sales and Settlements, Net	'	-1	'
Transfers Into/Out of Level 3	'	0	'
Effect of Foreign Currency	'	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	'	0	'
Non-US Pension Plans [Member] | Corporate Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	2,422	2,598	'
Non-US Pension Plans [Member] | Corporate Debt Securities [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	12	2	4
Net Realized / Unrealized Gains (Losses)	1	2	'
Purchases, Sales and Settlements, Net	8	-4	'
Transfers Into/Out of Level 3	1	0	'
Effect of Foreign Currency	0	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	1	0	'
Non-US Pension Plans [Member] | Mortgage and asset-backed securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	67	57	'
Non-US Pension Plans [Member] | Mortgage and asset-backed securities [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	2	3	4
Net Realized / Unrealized Gains (Losses)	0	0	'
Purchases, Sales and Settlements, Net	-1	-4	'
Transfers Into/Out of Level 3	0	3	'
Effect of Foreign Currency	0	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	0	0	'
Non-US Pension Plans [Member] | Equity funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	2,058	2,221	'
Non-US Pension Plans [Member] | Equity funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	0	146
Net Realized / Unrealized Gains (Losses)	'	-24	'
Purchases, Sales and Settlements, Net	'	-124	'
Transfers Into/Out of Level 3	'	0	'
Effect of Foreign Currency	'	2	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	'	0	'
Non-US Pension Plans [Member] | Fixed income funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	939	1,060	'
Non-US Pension Plans [Member] | Fixed income funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	12	14	20
Net Realized / Unrealized Gains (Losses)	-1	0	'
Purchases, Sales and Settlements, Net	-1	-6	'
Transfers Into/Out of Level 3	0	0	'
Effect of Foreign Currency	0	0	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	0	0	'
Non-US Pension Plans [Member] | Funds of hedge funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	733	627	'
Non-US Pension Plans [Member] | Funds of hedge funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	733	627	585
Net Realized / Unrealized Gains (Losses)	111	25	'
Purchases, Sales and Settlements, Net	28	0	'
Transfers Into/Out of Level 3	0	0	'
Effect of Foreign Currency	-33	17	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	112	26	'
Non-US Pension Plans [Member] | Other investment funds [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	672	35	'
Non-US Pension Plans [Member] | Other investment funds [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	0	247
Net Realized / Unrealized Gains (Losses)	'	17	'
Purchases, Sales and Settlements, Net	'	-269	'
Transfers Into/Out of Level 3	'	0	'
Effect of Foreign Currency	'	5	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	'	0	'
Non-US Pension Plans [Member] | Private equity and debt investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	430	381	'
Non-US Pension Plans [Member] | Private equity and debt investments [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	430	381	298
Net Realized / Unrealized Gains (Losses)	73	46	'
Purchases, Sales and Settlements, Net	3	29	'
Transfers Into/Out of Level 3	0	0	'
Effect of Foreign Currency	-27	8	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	53	24	'
Non-US Pension Plans [Member] | Real estate investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	1,430	1,472	'
Non-US Pension Plans [Member] | Real estate investments [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	1,405	1,422	1,345
Net Realized / Unrealized Gains (Losses)	103	123	'
Purchases, Sales and Settlements, Net	-57	-82	'
Transfers Into/Out of Level 3	0	0	'
Effect of Foreign Currency	-63	36	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	122	119	'
Non-US Pension Plans [Member] | Other investments [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	618	665	'
Non-US Pension Plans [Member] | Other investments [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	618	665	428
Net Realized / Unrealized Gains (Losses)	-10	16	'
Purchases, Sales and Settlements, Net	-43	203	'
Transfers Into/Out of Level 3	0	0	'
Effect of Foreign Currency	6	18	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	4	10	'
Non-US Pension Plans [Member] | Total assets [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	3,212	3,114	3,078
Net Realized / Unrealized Gains (Losses)	277	205	'
Purchases, Sales and Settlements, Net	-63	-258	'
Transfers Into/Out of Level 3	1	3	'
Effect of Foreign Currency	-117	86	'
Change in Unrealized Gains (Losses) Attributable to Assets Held at Balance Sheet Date	292	179	'
Non-US Pension Plans [Member] | Interest Rate Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	2	0	'
Non-US Pension Plans [Member] | Interest Rate Contract [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	0	0	'
Non-US Pension Plans [Member] | Foreign Exchange and Other Contract [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	45	42	'
Non-US Pension Plans [Member] | Foreign Exchange and Other Contract [Member] | Level 3 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan Fair Value of Plan Assets Gross	$0	$0	'

Pensions_And_Other_Postretirem9

Pensions And Other Postretirement Benefits Benefit Payments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
US Pension Plans [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Minimum Period Of Time For Which There Are No Mandatory Funding Requirements For Qualified Plan	'5 years
Funding Requirements	$0
2014	5,780,000,000
2015	5,687,000,000
2016	5,475,000,000
2017	5,368,000,000
2018	5,210,000,000
2019 - 2023	24,019,000,000
Non-US Pension Plans [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
2014	1,609,000,000
2015	1,597,000,000
2016	1,688,000,000
2017	1,711,000,000
2018	1,581,000,000
2019 - 2023	7,858,000,000
US OPEB Plans [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
2014	376,000,000
2015	364,000,000
2016	352,000,000
2017	341,000,000
2018	332,000,000
2019 - 2023	1,576,000,000
Non-US OPEB Plans [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
2014	77,000,000
2015	65,000,000
2016	65,000,000
2017	65,000,000
2018	66,000,000
2019 - 2023	$357,000,000

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Automotive [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Notional Amount	$9,300	$9,100
Derivative Liability, Notional Amount	427	1,600
GM Financial [Member] | Interest Rate Contract [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Notional Amount	3,800	775
Derivative Liability, Notional Amount	5,500	775
GM Financial [Member] | Foreign Exchange Contract [Member]	'	'
Derivative [Line Items]	'	'
Derivative Asset, Notional Amount	1,700	'
Derivative Liability, Notional Amount	$2,100	'

Commitments_and_Contingencies_1

Commitments and Contingencies Guarantees (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Guarantor Obligations [Line Items]	'	'
Credit Card Programs Available Rebate	$2,600,000,000	$2,900,000,000
Third party commercial loans and other obligations [Member]	'	'
Guarantor Obligations [Line Items]	'	'
Liability Recorded	51,000,000	168,000,000
Maximum Liability	15,616,000,000	22,496,000,000
Guarantees of Product Related Claims [Member]	'	'
Guarantor Obligations [Line Items]	'	'
Liability Recorded	54,000,000	51,000,000
Maximum Liability	1,317,000,000	1,040,000,000
Ally Financial [Member] | Third party commercial loans and other obligations [Member]	'	'
Guarantor Obligations [Line Items]	'	'
Liability Recorded	10,000,000	15,000,000
Maximum Liability	$15,300,000,000	$22,100,000,000

Commitments_and_Contingencies_2

Commitments and Contingencies Loss Contingencies (Details)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Oct. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 28, 2010

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

USD ($)

USD ($)

Opel Vauxhall Restructuring [Member]

Opel Vauxhall Restructuring [Member]

Opel Vauxhall Restructuring [Member]

BRAZIL

Korea Wage Litigation - Hourly

Korea Wage Litigation - Hourly

Korea Wage Litigation - Hourly

Korea Wage Litigation - Hourly

Korea Wage Litigation - Salaried [Member]

Korea Wage Litigation - Salaried [Member]

GMCL Dealer Litigation [Member]

GMCL Dealer Litigation [Member]

GMCL Dealer Litigation [Member]

UAW Lawsuit [Member]

Nova Scotia Claims Litigation [Member]

Minimum [Member]

Maximum [Member]

GM Korea [Member]

USD ($)

EUR (€)

USD ($)

USD ($)

KRW

USD ($)

KRW

USD ($)

KRW

CAD

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other Litigation Liability

$1,227,000,000

$1,728,000,000

'

'

'

'

'

'

$784,000,000

843,000,000,000

'

'

'

'

$0

'

'

'

'

'

Credit Card Redemption liability

183,000,000

209,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit Card Deferred revenue

295,000,000

355,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit Card Programs Available Rebate

2,600,000,000

2,900,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Indirect Tax-Related Escrow Deposit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000,000

800,000,000

'

Number Of Group Actions

'

'

'

'

'

'

8

8

'

'

'

'

'

'

'

'

'

'

'

'

Number of Plaintiffs

'

'

'

'

'

'

10,000

10,000

'

'

'

'

200

181

'

'

'

'

'

'

Estimate of Possible Loss

'

'

'

'

'

'

599,000,000

632,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Net reduction to Automotive cost of sales

'

'

'

'

'

'

711,000,000

746,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Equity Method Investment, Ownership Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

77.00%

Loss Contingency, Range of Possible Loss, Portion Not Accrued

'

'

'

'

'

'

'

'

'

'

156,000,000

165,000,000,000

'

'

'

'

'

'

'

'

Litigation Claims

'

'

'

'

'

'

'

'

'

'

'

'

'

750,000,000

'

450,000,000

'

'

'

'

Pending Claims, Number

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

Litigation Settlement Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

'

'

'

Increase in Excise Tax Rate

'

'

'

'

'

30.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Planned Spending Guarantee - Euro

'

'

'

265,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Inventory Pledged as Collateral

'

'

200,000,000

'

186,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset Retirement Obligation

$159,000,000

$116,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commitments_and_Contingencies_3

Commitments and Contingencies Loss Contingencies Product Liability And Environmental Liability (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013
In Millions, unless otherwise specified			Minimum [Member]	Maximum [Member]
Loss Contingencies Product Liability And Environmental Liability [Line Items]	'	'	'	'
Product Liability	$690	$601	'	'
Environmental Liability	154	166	'	'
Environmental Remediation Years of Cost to Incur, Min	'5 years	'	'	'
Environmental Remediation Years of Cost to Incur, Max	'30 years	'	'	'
Environmental Remediation Losses	'	'	$120	$230

Commitments_and_Contingencies_4

Commitments and Contingencies Noncancelable Operating Leases (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]	'	'	'
Future Minimum Payments, 2014	$363	'	'
Future Minimum Payments, 2015	290	'	'
Future Minimum Payments, 2016	225	'	'
Future Minimum Payments, 2017	156	'	'
Future Minimum Payments, 2018	132	'	'
Future Minimum Payments, Thereafter	499	'	'
Sublease income, 2014	-52	'	'
Sublease income, 2015	-58	'	'
Sublease income, 2016	-60	'	'
Sublease income, 2017	-59	'	'
Sublease income, 2018	-56	'	'
Sublease Income, thereafter	-293	'	'
Net minimum commitment, 2014	311	'	'
Net minimum commitment, 2015	232	'	'
Net minimum commitment, 2016	165	'	'
Net minimum commitment, 2017	97	'	'
Net minimum commitment, 2018	76	'	'
Net minimum commitment, thereafter	206	'	'
Operating Leases, Rent Expense, Net	$477	$474	$556

Income_Taxes_Pretax_income_and

Income Taxes Pre-tax income and income tax expense (benefit) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate Reconciliation, Amount [Abstract]	'	'	'
Income tax expense (benefit) at U.S. federal statutory income tax rate	$1,977,000,000	($10,590,000,000)	$2,094,000,000
State and local tax expense	145,000,000	254,000,000	215,000,000
Non-U.S. income taxed at other than 35%	-168,000,000	908,000,000	-172,000,000
Foreign Tax Credit Election Change	0	-1,075,000,000	0
U.S. Tax on Non-U.S. Income	543,000,000	713,000,000	-122,000,000
Change in valuation allowance	182,000,000	-33,917,000,000	-2,386,000,000
Change in Tax Laws	146,000,000	67,000,000	-33,000,000
Research Incentives	-490,000,000	-68,000,000	-45,000,000
Gain on Sale of New Delphi Equity Interests	0	0	599,000,000
Goodwill Impairment	124,000,000	8,705,000,000	377,000,000
Settlements of Prior Year Tax Matters	-473,000,000	0	-56,000,000
VEBA Contribution	0	0	-476,000,000
Foreign Currency Remeasurement	-21,000,000	-36,000,000	59,000,000
Pension Contribution	0	0	-127,000,000
U.S. salaried pension plan settlement	0	541,000,000	0
Other Adjustments	162,000,000	-333,000,000	-37,000,000
Statement [Line Items]	'	'	'
Income (loss) before income taxes and equity income and gain on investments	5,648,000,000	-30,257,000,000	5,985,000,000
Income Tax Expense (Benefit), Continuing Operations [Abstract]	'	'	'
Current U.S. federal	-34,000,000	6,000,000	-134,000,000
Current U.S. state and local	88,000,000	78,000,000	58,000,000
Current Non-U.S.	512,000,000	646,000,000	275,000,000
Total Current income tax expense (benefit)	566,000,000	730,000,000	199,000,000
Deferred U.S.	1,049,000,000	-28,965,000,000	8,000,000
Deferred U.S. state and local	137,000,000	-3,415,000,000	-28,000,000
Deferred Non-U.S.	375,000,000	-3,181,000,000	-289,000,000
Total Deferred income tax expense (benefit)	1,561,000,000	-35,561,000,000	-309,000,000
Total income tax expense (benefit)	2,127,000,000	-34,831,000,000	-110,000,000
Basis Differences in Investments Resulting from Earnings Indefinitely Reinvested	2,600,000,000	1,400,000,000	'
Basis Difference Related to Fresh Start Reporting	4,100,000,000	4,100,000,000	'
U.S. [Member]	'	'	'
Statement [Line Items]	'	'	'
Income (loss) before income taxes and equity income and gain on investments	4,880,000,000	-19,063,000,000	2,883,000,000
Non-U.S. [Member]	'	'	'
Statement [Line Items]	'	'	'
Income (loss) before income taxes and equity income and gain on investments	$768,000,000	($11,194,000,000)	$3,102,000,000

Income_Taxes_Income_Tax_Assets

Income Taxes Income Tax Assets and Liabilities (Details) (USD $)	12 Months Ended		1 Months Ended			3 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013
			U.S. [Member]	Canada [Member]	Australia [Member]	Australia [Member]
Deferred income tax assets and liabilities [Line Items]	'	'	'	'	'	'
Postretirement Benefits Other Than Pensions	$3,494,000,000	$2,902,000,000	'	'	'	'
Pensions and Other Employee Benefit Plans	8,536,000,000	5,469,000,000	'	'	'	'
Warranties, Dealer and Customer Allowances, Claims and Discounts	4,277,000,000	4,282,000,000	'	'	'	'
Property, Plants and Equipment	2,225,000,000	2,464,000,000	'	'	'	'
Capitalized Research Expenditures	6,106,000,000	7,179,000,000	'	'	'	'
Operating Loss and Tax Credit Carryforwards	20,220,000,000	19,342,000,000	'	'	'	'
Miscellaneous	3,443,000,000	1,663,000,000	'	'	'	'
Total Deferred Tax Assets Before Valuation Allowances	48,301,000,000	43,301,000,000	'	'	'	'
Valuation Allowance	-10,991,000,000	-10,823,000,000	'	'	'	'
Total Deferred Tax Assets	37,310,000,000	32,478,000,000	'	'	'	'
Intangible Assets	724,000,000	397,000,000	'	'	'	'
Net Deferred Tax Assets	36,586,000,000	32,081,000,000	'	'	'	'
Operating Loss and Tax Credit Carryforwards Subject to Expiration	'	16,300,000,000	'	'	'	'
Operating Loss and Tax Credit Carryforwards Not Subject to Expiration	'	3,000,000,000	'	'	'	'
Valuation Allowance, Deferred Tax Asset, Change in Amount	$36,364,000,000	'	($33,200,000,000)	($3,100,000,000)	($502,000,000)	$133,000,000

Income_Taxes_Uncertain_Tax_Pos

Income Taxes Uncertain Tax Positions (Details) (USD $)	1 Months Ended	12 Months Ended			1 Months Ended
	Nov. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2011
					Brazil Tax [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]	'	'	'	'	'
Unrecognized Tax Benefits - Beginning Balance	'	$2,745,000,000	$2,370,000,000	$5,169,000,000	'
Additions to Current Year Tax Positions	'	251,000,000	112,000,000	129,000,000	'
Additions to Prior Year Tax Positions	'	276,000,000	512,000,000	562,000,000	'
Reductions to Prior Year Tax Positions	'	-535,000,000	-141,000,000	-1,002,000,000	'
Reductions in Tax Positions due to Lapse of Statutory Limitations	'	-73,000,000	-34,000,000	-64,000,000	'
Settlements	'	-132,000,000	-112,000,000	-2,399,000,000	'
Other	'	-2,000,000	38,000,000	-25,000,000	'
Unrecognized Tax Benefits - Ending Balance	'	2,530,000,000	2,745,000,000	2,370,000,000	'
Income Tax Examination [Line Items]	'	'	'	'	'
Unrecognized Tax Benefit that Would Favorably Affect Effective Tax Rate in Future	'	1,500,000,000	1,200,000,000	'	'
Income Tax Related Interest Expense (Benefit) And Penalties	'	-25,000,000	44,000,000	-145,000,000	'
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	'	286,000,000	222,000,000	'	'
Income Tax Settlement	473,000,000	'	'	'	'
Resolution Of Uncertain Tax Positions In Full Valuation Allowance Jurisdictions	'	'	'	2,700,000,000	'
Brazilian Income Tax Settlement	'	'	'	'	241,000,000
Tax Benefit from Prior Year Research Credits	'	$200,000,000	'	'	'

Restructuring_And_Other_Initia2

Restructuring And Other Initiatives (Details) (USD $)

12 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

1 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2011

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

2011 UAW Labor Agreement [Member]

Property, Plant and Equipment [Member]

Cost of Sales [Member]

Germany Separation Programs [Member]

Germany Separation Programs [Member]

Germany Separation Programs [Member]

Germany and UK Separation Programs [Member]

Korea and Australia Separation Program [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Holden Manufacturing Operations [Member]

Holden Manufacturing Operations [Member]

Holden Manufacturing Operations [Member]

Holden Manufacturing Operations [Member]

Separation Program in Brazil [Member]

Separation Program in Brazil [Member]

Separation Program in Brazil [Member]

Property, Plant and Equipment [Member]

Cost of Sales [Member]

Dealer Restructuring Costs [Member]

Employee Severance [Member]

Property, Plant and Equipment [Member]

Cost of Sales [Member]

Employee Severance [Member]

Customer Relationships [Member]

Restructuring Cost and Reserve [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restructuring Reserve

$1,349

$1,320

$1,584

$1,802

'

'

'

$497

$653

$884

$1,135

'

$590

$503

$590

$687

$664

'

'

'

'

'

'

$333

$39

$1

$3

'

'

'

'

'

'

'

'

'

'

$16

$38

$12

$0

'

'

'

Additions, Interest Accretion and Other

714

570

634

'

'

'

'

58

140

104

'

'

'

202

254

449

'

'

'

'

'

'

'

404

84

0

'

'

'

'

'

233

30

'

'

'

59

50

92

81

'

87

'

'

Payments for Restructuring

-660

-749

-831

'

'

'

'

-182

-304

-366

'

'

'

-299

-344

-395

'

'

'

'

'

'

'

-111

-46

-2

'

'

'

'

'

'

'

'

'

'

'

-68

-55

-68

'

'

'

'

Revisions to Estimates

-29

-107

10

'

'

'

'

-16

-78

19

'

'

'

-9

-17

-9

'

'

'

'

'

'

'

-3

-1

0

'

'

'

'

'

'

'

'

'

'

'

-1

-11

0

'

'

'

'

Effect of Foreign Currency

4

22

-31

'

'

'

'

-16

11

-8

'

'

'

19

10

-22

'

'

'

'

'

'

'

4

1

0

'

'

'

'

'

'

'

'

'

'

'

-3

0

-1

'

'

'

'

Remaining Payments Including Temporary Layoffs Benefits

'

'

'

'

'

'

'

353

356

376

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expected Cost Remaining

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

650

'

'

'

640

'

'

'

'

'

300

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Positions Eliminated, Inception to Date

'

'

'

'

'

'

'

'

'

'

'

1,400

'

'

'

'

'

'

'

450

'

6,700

2,550

4,100

'

'

'

650

480

480

'

'

'

2,900

'

'

'

'

'

'

'

'

'

900

Expected Number of Positions Eliminated

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,300

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cost Incurred to Date

'

'

'

'

'

'

'

'

'

'

'

99

'

'

'

'

'

'

'

194

310

1,100

400

420

'

'

'

69

'

'

'

'

'

'

'

'

'

'

'

'

'

'

103

74

Pre-tax Charges, Net of Noncontrolling interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

636

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pre-tax Charges

150,296

182,619

144,620

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

745

'

'

'

'

'

'

536

'

'

'

'

'

'

'

'

Noncontrolling Interest Adjustments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

124

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sales Incentive and Inventory Related Costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

233

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of Intangible Assets, Finite-lived

523

1,755

0

'

'

'

'

'

'

'

'

'

1,800

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

264

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Dealers and Distributors Impacted, Inception to Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,200

1,200

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tangible Asset Impairment Charges

'

'

'

'

$901

$3,793

$81

'

'

'

'

'

'

'

'

'

'

$3,700

$3,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$477

'

'

'

'

'

'

'

'

'

Interest_Income_and_Other_NonO2

Interest Income and Other Non-Operating, net (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investment [Line Items]	'	'	'
Interest Income	$246	$343	$455
Net gains (losses) on derivatives	-13	-63	41
Dividends and royalties	97	98	153
Foreign currency transaction and translation gains (losses)	-154	16	-48
Gains (losses) on securities and other investments - realized and unrealized	691	-193	-9
Other	96	530	146
Total interest income and other non-operating income, net	1,063	845	851
Interest And Other Nonoperating Income Net [Member]	'	'	'
Investment [Line Items]	'	'	'
Deferred income from technology agreements	$100	$114	$113

Stockholders_Equity_and_Noncon2

Stockholders' Equity and Noncontrolling Interests Stockholders' Equity and Noncontrolling Interest (Details) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Dec. 31, 2012

Dec. 31, 2013

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 02, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Series B Preferred Stock [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Votes

Description of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Shares Authorized

'

2,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock, Shares Authorized

'

5,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Shares Issued

'

'

'

156,000,000

276,000,000

'

0

0

0

100,000,000

'

'

'

'

'

Common Stock, Shares, Issued

'

'

'

'

'

'

'

'

'

'

'

'

1,400,000,000

1,400,000,000

1,500,000,000

Liquidation Preference Per Share

'

'

'

$25

'

'

$50

$50

$50

'

'

'

'

'

'

Dividend Rate per Annum

'

'

'

9.00%

'

'

'

'

4.75%

'

'

'

'

'

'

Dividends Paid

'

'

'

$1,370,000,000

$621,000,000

$621,000,000

'

'

$237,000,000

$238,000,000

$243,000,000

'

'

'

'

Redemption Value Per Share

'

'

'

$25

'

'

'

'

'

'

'

'

'

'

'

Stock Repurchased During Period, Shares

'

'

120,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock, Shares Outstanding

'

'

43.50%

'

'

'

'

'

'

'

'

'

'

'

'

Percent in Excess of Liquidation Amount

'

'

108.10%

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate liquidation amount

'

'

3,200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Redemption Premium

'

'

816,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Future Redemption Premium

'

'

800,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Conversion of Stock, Shares Converted

'

'

'

'

'

'

100,000,000

'

'

'

'

'

'

'

'

Conversion Rate of Preferred Stock to Common

'

'

'

'

'

'

'

'

'

'

'

1.3736

'

'

'

Shares Issued Upon Conversion of Preferred Stock

'

'

'

'

'

'

137,000,000

'

'

'

'

'

'

'

'

Common Stock Trading Days

'

'

'

'

'

'

'

'40 days

'

'

'

'

'

'

'

Common Stock Voting Rights Number of Votes per Share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

Stock Repurchased During Period, Shares

'

'

'

'

'

'

'

'

'

'

'

'

200,000,000

'

'

Stock Repurchased During Period, Price per Share

'

'

'

'

'

'

'

'

'

'

'

'

$27.50

$27.50

'

Purchase and retirement of common stock

'

'

'

'

'

'

'

'

'

'

'

'

5,500,000,000

'

'

Stock Repurchased During Period Closing, Price per Share Prior to Repurchase

'

'

'

'

'

'

'

'

'

'

'

'

$25.49

$25.49

'

Stock Repurchased During Period, Value

5,109,000,000

'

'

'

'

'

'

'

'

'

'

'

5,100,000,000

'

'

Premium Paid on Repurchase of Common Stock

'

'

'

'

'

'

'

'

'

'

'

'

$402,000,000

'

'

Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures

'

'

'

'

'

'

'

'

'

'

'

'

'

1,300,000

'

Shares Issued For Exercised Warrants

'

'

'

'

'

'

'

'

'

'

'

'

'

400,000

'

Stockholders_Equity_and_Noncon3

Stockholders' Equity and Noncontrolling Interests Warrants (Details)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2009	Dec. 31, 2013	Dec. 31, 2009	Dec. 31, 2013	Dec. 31, 2009	Dec. 31, 2013	Dec. 31, 2009
In Millions, unless otherwise specified			MLC Warrants [Member]	First Traunche of Warrants [Member]	First Traunche of Warrants [Member]	Second Traunche of Warrants [Member]	Second Traunche of Warrants [Member]	New VEBA [Member]	New VEBA [Member]
Class of Warrant or Right [Line Items]	'	'	'	'	'	'	'	'	'
Number Of Traunches of Warrants Issued	'	'	2	'	'	'	'	'	1
Number of Securities Called by Warrants or Rights	'	'	'	'	136	'	136	'	46
Investment Warrants Expiration Date	'	'	'	10-Jul-16	'	10-Jul-19	'	31-Dec-15	'
Exercise Price of Warrants or Rights	'	'	'	10	'	18.33	'	42.31	'
Class of Warrant or Right, Outstanding	293	313	'	'	'	'	'	'	'

Stockholders_Equity_and_Noncon4

Stockholders' Equity and Noncontrolling Interests Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated Other Comprehensive Income (Loss), before Tax	$354	($7,619)	($4,436)	$2,680
Accumulated Other Comprehensive Income (Loss), Tax	3,467	433	1,425	1,429
Accumulated Other Comprehensive Income (Loss), Net of Tax	-3,113	-8,052	-5,861	1,251
Other Comprehensive Income (Loss), before Tax	7,955	-3,172	-7,119	'
Other Comprehensive Income (Loss), Tax	3,034	-992	-4	'
Other Comprehensive Income (Loss), Net of Tax	4,921	-2,180	-7,115	'
Purchase of noncontrolling interest shares, before tax	0	0	-7	'
Purchase of noncontrolling interest shares, tax	0	0	0	'
Purchase of noncontrolling interest shares, net of tax	0	0	-7	'
Other Comprehensive (Income) Loss, before Tax, Portion Attributable to Noncontrolling Interest	18	-11	10	'
Other Comprehensive (Income) Loss, Tax, Portion Attributable to Noncontrolling Interest	0	0	0	'
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	18	-11	10	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, before Tax	8,090	-3,476	-7,433	'
Other Comprehensive Income (Loss) before Reclassification Adjustment, Tax	3,092	-999	-9	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, Net of Tax	4,998	-2,477	-7,424	'
Reclassification Adjustment, before Tax	-135	304	314	'
Reclassification Adjustment, Tax	-58	7	5	'
Reclassification Adjustment, Net of Tax	-77	297	309	'
Foreign Currency Translation Adjustment [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated Other Comprehensive Income (Loss), before Tax	-592	112	226	405
Accumulated Other Comprehensive Income (Loss), Tax	22	11	11	11
Accumulated Other Comprehensive Income (Loss), Net of Tax	-614	101	215	394
Other Comprehensive Income (Loss), before Tax	-722	-103	-183	'
Other Comprehensive Income (Loss), Tax	11	0	0	'
Other Comprehensive Income (Loss), Net of Tax	-733	-103	-183	'
Purchase of noncontrolling interest shares, before tax	0	0	-6	'
Purchase of noncontrolling interest shares, tax	0	0	0	'
Purchase of noncontrolling interest shares, net of tax	0	0	-6	'
Other Comprehensive (Income) Loss, before Tax, Portion Attributable to Noncontrolling Interest	18	-11	10	'
Other Comprehensive (Income) Loss, Tax, Portion Attributable to Noncontrolling Interest	0	0	0	'
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	18	-11	10	'
Cash Flow Hedging Gains (Losses), net [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated Other Comprehensive Income (Loss), before Tax	0	0	2	-23
Accumulated Other Comprehensive Income (Loss), Tax	0	0	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	0	2	-23
Other Comprehensive Income (Loss), before Tax	0	-2	25	'
Other Comprehensive Income (Loss), Tax	0	0	0	'
Other Comprehensive Income (Loss), Net of Tax	0	-2	25	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, before Tax	0	0	25	'
Other Comprehensive Income (Loss) before Reclassification Adjustment, Tax	0	0	0	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, Net of Tax	0	0	25	'
Reclassification Adjustment, before Tax	0	-2	0	'
Reclassification Adjustment, Tax	0	0	0	'
Reclassification Adjustment, Net of Tax	0	-2	0	'
Unrealized Gain (Loss) on Securities, net [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated Other Comprehensive Income (Loss), before Tax	11	63	1	0
Accumulated Other Comprehensive Income (Loss), Tax	9	22	5	5
Accumulated Other Comprehensive Income (Loss), Net of Tax	2	41	-4	-5
Other Comprehensive Income (Loss), before Tax	-52	62	1	'
Other Comprehensive Income (Loss), Tax	-13	17	0	'
Other Comprehensive Income (Loss), Net of Tax	-39	45	1	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, before Tax	133	-140	1	'
Other Comprehensive Income (Loss) before Reclassification Adjustment, Tax	-6	22	0	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, Net of Tax	139	-162	1	'
Reclassification Adjustment, before Tax	-185	202	0	'
Reclassification Adjustment, Tax	-7	-5	0	'
Reclassification Adjustment, Net of Tax	-178	207	0	'
Defined Benefit Plans, net [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Accumulated Other Comprehensive Income (Loss), before Tax	935	-7,794	-4,665	2,298
Accumulated Other Comprehensive Income (Loss), Tax	3,436	400	1,409	1,413
Accumulated Other Comprehensive Income (Loss), Net of Tax	-2,501	-8,194	-6,074	885
Other Comprehensive Income (Loss), before Tax	8,729	-3,129	-6,962	'
Other Comprehensive Income (Loss), Tax	3,036	-1,009	-4	'
Other Comprehensive Income (Loss), Net of Tax	5,693	-2,120	-6,958	'
Purchase of noncontrolling interest shares, before tax	0	0	-1	'
Purchase of noncontrolling interest shares, tax	0	0	0	'
Purchase of noncontrolling interest shares, net of tax	0	0	-1	'
Reclassification adjustment - amortization of prior service cost included in net income, before Tax	-128	-125	-52	'
Reclassification adjustment - amortization of prior service cost included in net income, Tax	-44	-5	0	'
Reclassification adjustment - amortization of prior service cost included in net income, Net of Tax	-84	-120	-52	'
Reclassification adjustment - amortization of actuarial gain (loss) included in net income, before Tax	178	229	366	'
Reclassification adjustment - amortization of actuarial gain (loss) included in net income, Tax	-7	17	5	'
Reclassification adjustment - amortization of actuarial gain (loss) included in net income, Net of Tax	185	212	361	'
Defined Benefit Plans - Prior Service Cost, net [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, before Tax	6	-53	302	'
Other Comprehensive Income (Loss) before Reclassification Adjustment, Tax	-4	-95	1	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, Net of Tax	10	42	301	'
Defined Benefit Plans - Actuarial Gain (Loss), net [Member]	'	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, before Tax	8,673	-3,180	-7,578	'
Other Comprehensive Income (Loss) before Reclassification Adjustment, Tax	3,091	-926	-10	'
Other Comprehensive Income (Loss), before Reclassification Adjustment, Net of Tax	$5,582	($2,254)	($7,568)	'

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Basic Earnings per Share	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to stockholders	$1,040	$1,717	$1,414	$1,175	$1,194	$1,833	$1,846	$1,315	$5,346	$6,188	$9,190
Preferred Stock Dividends and Charge Related to Purchase of Preferred Stock	'	'	'	'	'	'	'	'	-1,576	-859	-859
Net income (loss) attributable to common stockholders	'	'	'	'	'	'	'	'	3,770	4,859	7,585
Weighted-average common shares outstanding - basic	'	'	'	'	'	'	'	'	1,393	1,566	1,536
Basic earnings per common share	$0.64	$0.50	$0.87	$0.63	$0.58	$0.94	$0.95	$0.64	$2.71	$3.10	$4.94
Earnings Per Share, Diluted [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to stockholders	1,040	1,717	1,414	1,175	1,194	1,833	1,846	1,315	5,346	6,188	9,190
Preferred Stock Dividends and Charge Related to Purchase of Preferred Stock	'	'	'	'	'	'	'	'	-1,576	-859	-859
Net income (loss) attibutable to common stockholders	'	'	'	'	'	'	'	'	3,988	4,887	7,638
Weighted Average Common Shares Outstanding - Diluted [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Weighted-average common shares outstanding	'	'	'	'	'	'	'	'	1,393	1,566	1,536
Dilutive effect of warrants	'	'	'	'	'	'	'	'	146	104	130
Dilutive effect of restricted stock units	'	'	'	'	'	'	'	'	3	5	2
Weighted-average common shares outstanding - diluted	'	'	'	'	'	'	'	'	1,676	1,675	1,668
Diluted earnings (loss) per share	$0.57	$0.45	$0.75	$0.58	$0.54	$0.89	$0.90	$0.60	$2.38	$2.92	$4.58
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Lower share price boundary for two class method	'	'	'	'	'	'	'	'	$33	$33	$33
Higher share price boundary for two class method	'	'	'	'	'	'	'	'	$39.60	$39.60	$39.60
Common Stock Trading Days	'	'	'	'	'	'	'	'	'40 days	'40 days	'40 days
Assumed change of method impact to earnings per share	'	'	'	'	'	'	'	'	$0.13	'	'
Warrants excluded from computation of diluted EPS (shares)	'	'	'	'	'	'	'	'	46	46	46
Series A Preferred Stock [Member]	'	'	'	'	'	'	'	'	'	'	'
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Earned but undeclared dividends on preferred stock	'	'	'	'	'	'	'	'	15	26	26
Series B Preferred Stock [Member]	'	'	'	'	'	'	'	'	'	'	'
Basic Earnings per Share	'	'	'	'	'	'	'	'	'	'	'
Less: undistributed earnings allocated to Series B preferred stock participating security	'	'	'	'	'	'	'	'	0	-470	-746
Earnings Per Share, Diluted [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Add: preferred dividends to holders of Series B Preferred Stock	'	'	'	'	'	'	'	'	218	0	0
Less: undistributed earnings allocated to Series B Preferred Stock participating security	'	'	'	'	'	'	'	'	0	-442	-693
Weighted Average Common Shares Outstanding - Diluted [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Dilutive effect of conversion of Series B Preferred Stock	'	'	'	'	'	'	'	'	134	0	0
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Earned but undeclared dividends on preferred stock	'	'	'	'	'	'	'	'	'	$20	$20
Preferred Stock Assumed Converted	'	'	'	'	'	'	'	'	'	152	152

Stock_Incentive_Plans_Details

Stock Incentive Plans (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012
				Restricted Stock Units (RSUs) [Member]	Restricted Stock Units (RSUs) [Member]	Restricted Stock Units (RSUs) [Member]	Long-Term Incentive Plan [Member]	Long-Term Incentive Plan [Member]	Long-Term Incentive Plan [Member]	Salary Stock Plan [Member]
Stock Incentive Plans Narratives [Abstract]	'	'	'	'	'	'	'	'	'	'
Aggregrate Number of Shares Authorized Under GMLTIP and GMSSP	75,000,000	'	'	'	'	'	'	'	'	'
Number of Top Highest Compensated Employee	'	'	'	'	'	'	25	25	25	'
Incremental Settlement Percentage of Top Highest Compensated Employees.	'	'	'	'	'	'	25.00%	25.00%	25.00%	'
Number of Next Highest Compensated Employee.	'	'	'	'	'	'	75	'	75	'
RSUs Reclassified from Equity to Liability	'	'	'	'	'	'	'	'	'	$97
Share-based Compensation Expense	311	302	233	'	'	'	'	'	'	'
Income Tax Benefit	100	100	0	'	'	'	'	'	'	'
Unrecognized Compensation Expense for Nonvested Equity Awards	149	'	'	'	'	'	'	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'1 year 7 months	'	'	'	'	'	'	'	'	'
Fair Value of Vested RSUs	'	'	'	342	141	105	'	'	'	'
RSUs Settled with Cash Payments	'	'	'	3,100,000	1,600,000	456,000	'	'	'	'
Cash Used to Settle RSUs	'	'	'	$94	$36	$14	'	'	'	'
RSU Shares [Abstract]	'	'	'	'	'	'	'	'	'	'
RSUs Outstanding, Beginning of Period	'	'	'	26,900,000	'	'	'	'	'	'
Granted	'	'	'	8,900,000	'	'	7,000,000	7,000,000	5,000,000	'
Settled	'	'	'	-16,000,000	'	'	'	'	'	'
Forfeited or expired	'	'	'	-1,200,000	'	'	'	'	'	'
RSUs Outstanding, End of Period	'	'	'	18,600,000	26,900,000	'	'	'	'	'
RSUs Unvested and Expected to Vest	'	'	'	9,200,000	'	'	'	'	'	'
RSUs Vested and Payable	'	'	'	8,800,000	'	'	'	'	'	'
RSU Weighted Average Grant Date Fair Value (Per Share) [Roll Forward]	'	'	'	'	'	'	'	'	'	'
Weighted Average Grant Date Fair Value, RSUs Outstanding, Beginning of Period	'	'	'	$23.06	'	'	'	'	'	'
Weighted Average Grant Date Fair Value, Granted	'	'	'	$29.05	$25.10	$31.18	'	'	'	'
Weighted Average Grant Date Fair Value, Settled	'	'	'	$20.60	'	'	'	'	'	'
Weighted Average Grant Date Fair Value, Forfeited or Expired	'	'	'	$27.20	'	'	'	'	'	'
Weighted Average Grant Date Fair Value, RSUs Outstanding, End of Period	'	'	'	$27.76	$23.06	'	'	'	'	'
RSU weighted-average grant date fair value unvested and expected to vest	'	'	'	$27.94	'	'	'	'	'	'
RSUs Weighted Average Grant Date Fair Value Vested and Payable	'	'	'	$27.61	'	'	'	'	'	'
Remaining Contractual Term [Abstract]	'	'	'	'	'	'	'	'	'	'
Weighted Average Remaining Contractual Terms, RSUs Outstanding	'	'	'	'1 year 2 months	'8 months	'	'	'	'	'
Weighted Average Remaining Contractual Terms Unvested and Expected to Vest	'	'	'	'1 year 7 months	'	'	'	'	'	'
Weighted Average Remaining Contractual Terms Vested and Payable	'	'	'	'0 years	'	'	'	'	'	'

Supplementary_Quarterly_Financ2

Supplementary Quarterly Financial Information (Unaudited) (Details) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

In Millions, except Per Share data, unless otherwise specified

Nov. 30, 2013

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Mar. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Common Stock [Member]

Korean Wage Litigation [Member]

U.S. Salaried Defined Benefit Pension Plan [Member]

U.S. Salaried Defined Benefit Pension Plan [Member]

U.S. and Canada [Member]

GMIO [Member]

GMNA [Member]

GMNA [Member]

GMSA [Member]

GMNA and GMIO [Member]

GME [Member]

GMIO and GME [Member]

Corporate, Non-Segment [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

GM Korea [Member]

Holden and GM India [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Ally Financial [Member]

PSA [Member]

U.S. Salaried Defined Benefit Pension Plan [Member]

VENEZUELA

GMIO [Member]

GME [Member]

GMIO [Member]

Property, Plant and Equipment [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMNA [Member]

GMNA [Member]

GMSA [Member]

GMSA [Member]

GME [Member]

GME [Member]

GME [Member]

Corporate, Non-Segment [Member]

GME [Member]

GMIO [Member]

Total net sales and revenue

'

$40,485

$38,983

$39,075

$36,884

$39,307

$37,576

$37,614

$37,759

$155,427

$152,256

$150,276

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Automotive gross margin

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,070

4,954

4,416

3,727

-3,135

4,327

4,449

4,418

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

'

1,053

1,705

1,388

1,185

1,031

1,854

1,901

1,350

5,331

6,136

9,287

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income (loss) attributable to stockholders

'

1,040

1,717

1,414

1,175

1,194

1,833

1,846

1,315

5,346

6,188

9,190

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basic earnings per common share

'

$0.64

$0.50

$0.87

$0.63

$0.58

$0.94

$0.95

$0.64

$2.71

$3.10

$4.94

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Diluted earnings (loss) per share

'

$0.57

$0.45

$0.75

$0.58

$0.54

$0.89

$0.90

$0.60

$2.38

$2.92

$4.58

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tangible Asset Impairment Charges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

901

3,793

81

3,700

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain Related to Litigation Settlement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

846

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property and Intangible Asset Impairment Charges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

805

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Costs and Expenses

'

'

'

'

'

'

'

'

'

150,296

182,619

144,620

'

'

'

'

'

'

'

'

'

'

'

'

'

745

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on Sale of Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

483

'

Gain On Sale Of Equity Method Investment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

152

Income Tax Settlement

473

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

473

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill impairment charges

'

'

'

'

'

'

'

'

'

541

27,145

1,286

'

'

'

'

'

481

'

'

'

26,500

'

617

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

541

27,145

541

156

270

0

26,399

0

0

0

590

1,000

'

'

Charge for Foreign Currency Devaluation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

162

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Valuation Allowance, Deferred Tax Asset, Change in Amount

'

'

'

'

'

'

'

'

'

'

-36,364

'

'

'

'

'

36,300

'

-36,200

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pension Settlement Charge, pre-tax

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-128

2,600

'

'

'

2,600

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of Intangible Assets, Finite-lived

'

'

'

'

'

'

'

'

'

523

1,755

0

'

'

'

'

'

'

'

'

'

'

1,800

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

GM Korea hourly wage litigation charge

'

'

'

'

'

'

'

'

'

'

'

'

'

525

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Premium Paid on Repurchase of Common Stock

'

'

'

'

'

'

'

'

'

'

'

'

($402)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Segment_Reporting_Summarize_ke

Segment Reporting Summarize key financial information by segment (Details) (USD $)

3 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2011

Common Stock [Member]

New Delphi [Member]

New Delphi [Member]

New Delphi [Member]

New Delphi [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Property, Plant and Equipment [Member]

Korea Wage Litigation [Member]

GMNA [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

Corporate, Non-Segment [Member]

Intersegment Eliminations [Member]

InterGroup Elimination [Member]

InterGroup Elimination [Member]

InterGroup Elimination [Member]

InterGroup Elimination [Member]

InterGroup Elimination [Member]

InterGroup Elimination [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

GM Financial [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Automotive [Member]

Venezuela [Member]

HCT Notes [Member]

Property, Plant and Equipment [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Ally Financial [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

GMNA [Member]

GMNA [Member]

GME [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMSA [Member]

GMSA [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Group [Member]

Automotive [Member]

Automotive [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Operating Segments [Member]

Corporate, Non-Segment [Member]

Corporate, Non-Segment [Member]

Corporate, Non-Segment [Member]

Corporate, Non-Segment [Member]

Corporate, Non-Segment [Member]

Corporate, Non-Segment [Member]

Corporate, Non-Segment [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Intersegment Eliminations [Member]

Group [Member]

Group [Member]

GM Financial Segment [Member]

GM Financial Segment [Member]

GM Financial Segment [Member]

GM Financial Segment [Member]

GM Financial Segment [Member]

GM Financial Segment [Member]

GM Financial Segment [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

Common Stock [Member]

Ally Financial [Member]

Ally Financial [Member]

Ally Financial [Member]

GMNA [Member]

GMNA [Member]

GMNA [Member]

GME [Member]

GME [Member]

GME [Member]

GMIO [Member]

GMIO [Member]

GMIO [Member]

GMSA [Member]

GMSA [Member]

GMSA [Member]

Operating Segments [Member]

Operating Segments [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

New Delphi [Member]

Product development agreement with Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

Equity investment in Peugeot S.A. [Member]

GM Strasbourg [Member]

Property, Plant and Equipment [Member]

GM Korea [Member]

GM Korea [Member]

GM India [Member]

Withdrawal of the Chevrolet Brand from Europe [Member]

Korea Wage Litigation [Member]

Korea Wage Litigation [Member]

Common Stock [Member]

Preferred Stock [Member]

GMSA [Member]

GMNA [Member]

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Reportable Segments

'

'

'

'

'

'

'

'

5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenue and others for Reportable Segment [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenue, Net

'

'

'

'

'

'

'

'

$152,092,000,000

$150,295,000,000

$148,866,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0

$0

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$152,092,000,000

$150,295,000,000

$148,866,000,000

$95,091,000,000

$89,912,000,000

$85,988,000,000

'

'

$20,110,000,000

$20,689,000,000

$25,154,000,000

'

'

'

'

$20,263,000,000

$22,954,000,000

$21,031,000,000

'

'

'

'

'

'

$16,478,000,000

$16,700,000,000

$16,632,000,000

$150,000,000

$40,000,000

$61,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Financial Services Revenue

'

'

'

'

'

'

'

'

3,335,000,000

1,961,000,000

1,410,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-9,000,000

0

0

'

'

'

'

'

3,344,000,000

1,961,000,000

1,410,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

0

0

0

'

'

0

0

0

'

'

'

'

0

0

0

'

'

'

'

'

'

0

0

0

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

40,485,000,000

38,983,000,000

39,075,000,000

36,884,000,000

39,307,000,000

37,576,000,000

37,614,000,000

37,759,000,000

155,427,000,000

152,256,000,000

150,276,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-17,000,000

2,000,000

-3,000,000

-8,000,000

2,000,000

-3,000,000

'

'

3,344,000,000

1,961,000,000

1,410,000,000

'

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

152,100,000,000

150,293,000,000

148,869,000,000

95,099,000,000

89,910,000,000

85,991,000,000

'

'

20,110,000,000

20,689,000,000

25,154,000,000

'

'

'

'

20,263,000,000

22,954,000,000

21,031,000,000

'

'

'

'

'

'

16,478,000,000

16,700,000,000

16,632,000,000

150,000,000

40,000,000

61,000,000

'

'

'

'

8,000,000

-2,000,000

3,000,000

8,000,000

-2,000,000

3,000,000

0

0

0

0

0

0

0

0

0

'

'

Income (loss) before interest and taxes adjusted

'

'

'

'

'

'

'

'

8,578,000,000

7,859,000,000

8,304,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

-1,000,000

0

'

'

'

'

'

898,000,000

744,000,000

622,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,680,000,000

7,116,000,000

7,682,000,000

7,461,000,000

6,470,000,000

6,779,000,000

'

'

-844,000,000

-1,939,000,000

-1,041,000,000

'

'

'

'

1,230,000,000

2,528,000,000

2,232,000,000

'

'

'

'

'

'

327,000,000

457,000,000

158,000,000

-494,000,000

-400,000,000

-446,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Adjustments

'

'

'

'

'

'

'

'

-805,000,000

-36,106,000,000

861,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

'

'

'

'

'

-15,000,000

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-790,000,000

-36,106,000,000

861,000,000

-100,000,000

-29,052,000,000

2,394,000,000

'

'

153,000,000

-6,391,000,000

-1,016,000,000

'

'

'

'

-1,169,000,000

-288,000,000

-364,000,000

'

'

'

'

'

'

-157,000,000

27,000,000

63,000,000

483,000,000

-402,000,000

-216,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Corporate interest Income

'

'

'

'

'

'

'

'

246,000,000

343,000,000

455,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-3,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

249,000,000

343,000,000

455,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Automotive interest expense

'

'

'

'

'

'

'

'

1,049,000,000

772,000,000

744,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-4,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

334,000,000

489,000,000

540,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

338,000,000

489,000,000

540,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

212,000,000

250,000,000

-18,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

212,000,000

250,000,000

-18,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-63,000,000

212,000,000

250,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income (loss) before income taxes

'

'

'

'

'

'

'

'

7,473,000,000

-28,643,000,000

9,080,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

883,000,000

744,000,000

622,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-312,000,000

-1,198,000,000

-747,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income tax expense (benefit)

'

'

'

'

'

'

'

'

2,127,000,000

-34,831,000,000

-110,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

-1,000,000

'

'

'

'

'

'

300,000,000

177,000,000

185,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,826,000,000

-35,007,000,000

-295,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income (loss) attributable to stockholders

1,040,000,000

1,717,000,000

1,414,000,000

1,175,000,000

1,194,000,000

1,833,000,000

1,846,000,000

1,315,000,000

5,346,000,000

6,188,000,000

9,190,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

583,000,000

567,000,000

437,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-2,138,000,000

33,809,000,000

-452,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity in net assets of nonconsolidated affiliates

8,094,000,000

'

'

'

6,883,000,000

'

'

'

8,094,000,000

6,883,000,000

6,790,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

'

'

'

'

'

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

8,094,000,000

6,883,000,000

6,790,000,000

74,000,000

65,000,000

60,000,000

'

'

7,000,000

51,000,000

50,000,000

'

'

'

'

8,009,000,000

6,764,000,000

6,678,000,000

'

'

'

'

'

'

4,000,000

3,000,000

2,000,000

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total Assets

166,344,000,000

'

'

'

149,422,000,000

'

'

'

166,344,000,000

149,422,000,000

144,603,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-1,790,000,000

-690,000,000

-369,000,000

'

'

'

'

'

38,084,000,000

16,368,000,000

13,112,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-29,642,000,000

-17,006,000,000

-31,333,000,000

130,050,000,000

133,744,000,000

131,860,000,000

87,978,000,000

87,100,000,000

83,528,000,000

'

'

10,341,000,000

9,669,000,000

15,777,000,000

'

'

'

'

23,425,000,000

25,032,000,000

22,130,000,000

'

'

'

'

'

'

11,488,000,000

11,958,000,000

11,514,000,000

26,460,000,000

16,991,000,000

30,244,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expenditures for property

'

'

'

'

'

'

'

'

7,565,000,000

8,068,000,000

6,249,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

'

'

'

'

'

16,000,000

13,000,000

8,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,000,000

-4,000,000

-10,000,000

7,549,000,000

8,055,000,000

6,241,000,000

5,466,000,000

4,766,000,000

3,404,000,000

'

'

770,000,000

1,035,000,000

1,016,000,000

'

'

'

'

772,000,000

1,225,000,000

907,000,000

'

'

'

'

'

'

444,000,000

956,000,000

880,000,000

92,000,000

77,000,000

44,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Depreciation, amortization and impairment of long-lived assets and finite-lived intangible assets

'

'

'

'

'

'

'

'

7,500,000,000

11,617,000,000

6,141,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-10,000,000

-10,000,000

-2,000,000

'

'

'

'

'

498,000,000

225,000,000

85,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-1,000,000

-1,000,000

-1,000,000

7,012,000,000

11,402,000,000

6,058,000,000

4,216,000,000

3,663,000,000

3,693,000,000

'

'

406,000,000

6,570,000,000

1,371,000,000

'

'

'

'

1,806,000,000

638,000,000

491,000,000

'

'

'

'

'

'

522,000,000

483,000,000

454,000,000

63,000,000

49,000,000

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity Income, net of tax and gain on investments

'

'

'

'

'

'

'

'

1,810,000,000

1,562,000,000

3,192,000,000

'

'

0

0

1,727,000,000

'

'

'

'

'

'

'

'

'

'

'

0

0

0

'

'

'

'

'

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

1,810,000,000

1,562,000,000

3,192,000,000

15,000,000

9,000,000

1,733,000,000

'

'

0

0

0

'

'

'

'

1,794,000,000

1,552,000,000

1,458,000,000

'

'

'

'

'

'

1,000,000

1,000,000

1,000,000

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tangible Asset Impairment Charges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

901,000,000

3,793,000,000

81,000,000

'

'

'

3,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Costs and Expenses

'

'

'

'

'

'

'

'

150,296,000,000

182,619,000,000

144,620,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

745,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Valuation Allowance, Deferred Tax Asset, Change in Amount

'

'

'

'

'

'

'

'

'

-36,364,000,000

'

'

'

'

'

'

'

'

'

'

-36,200,000,000

'

'

'

'

'

'

'

0

'

'

'

'

'

'

'

-103,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

-36,261,000,000

'

'

0

'

'

'

'

0

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

0

'

'

-36,261,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Charge for Foreign Currency Devaluation

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

162,000,000

'

Gain (loss) related to preferred shares redemption

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

67,000,000

68,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill, Impairment Loss

'

'

'

'

'

'

'

'

541,000,000

27,145,000,000

1,286,000,000

'

'

'

'

'

'

'

'

'

'

'

'

481,000,000

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

541,000,000

27,145,000,000

'

0

26,399,000,000

0

590,000,000

1,000,000,000

541,000,000

156,000,000

270,000,000

0

0

'

'

'

'

'

'

'

26,400,000,000

'

'

'

'

590,000,000

1,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset Impairment Charges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

119,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on sale of New Delphi Class A membership interest

'

'

'

'

'

'

'

'

'

'

'

'

1,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of Intangible Assets, Finite-lived

'

'

'

'

'

'

'

'

523,000,000

1,755,000,000

0

'

'

'

'

'

'

'

'

'

'

1,800,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,800,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

GM Korea Wage Litigation Accrual Adjustment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

577,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pension Settlement Gain (Charge), pre-tax

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

56,000,000

2,700,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-749,000,000

Insurance Recoveries

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35,000,000

'

'

'

9,000,000

'

'

'

'

7,000,000

'

'

'

'

'

'

112,000,000

'

'

'

'

'

'

'

'

27,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Premium Paid on Repurchase of Common Stock

'

'

'

'

'

'

'

'

'

'

'

-402,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

402,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred Tax Assets Valuation Allowance Charge (Release)

'

'

'

'

'

'

'

'

'

-36,500,000,000

-488,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

0

'

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-488,000,000

'

'

0

'

'

'

'

0

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

0

'

'

-488,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Valuation Allowance, Deferred Tax Asset, New Allowances

'

'

'

'

'

'

'

'

'

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

GM Korea hourly wage litigation charge

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

525,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

336,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill Impairment Charges, Net of Noncontrolling Interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

132,000,000

258,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment charges related to Ally Financial common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

555,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on Sale of Ally Financial Preferred Stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

483,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

483,000,000

'

339,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other than Temporary Impairment Losses, Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

220,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment Charges Related To Equity Method Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

106,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on Contracts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

49,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on Sale of Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

152,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property and Intangible Asset Impairment Charges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

774,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pre-tax Charges, Net of Noncontrolling interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

636,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

621,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill Impairment Loss, Net of Noncontrolling Interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$442,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Segment_Reporting_Revenues_and

Segment Reporting Revenues and long-lived assets by geographic region (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue, Net	'	'	'	'	'	'	'	'	$152,092	$150,295	$148,866
Financial Services Revenue	'	'	'	'	'	'	'	'	3,335	1,961	1,410
Revenues	40,485	38,983	39,075	36,884	39,307	37,576	37,614	37,759	155,427	152,256	150,276
Long-Lived Assets	31,648	'	'	'	27,647	'	'	'	31,648	27,647	26,277
U.S. [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue, Net	'	'	'	'	'	'	'	'	88,784	85,105	79,868
Financial Services Revenue	'	'	'	'	'	'	'	'	2,233	1,832	1,363
Non-U.S. [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue, Net	'	'	'	'	'	'	'	'	63,308	65,190	68,998
Financial Services Revenue	'	'	'	'	'	'	'	'	1,102	129	47
Maximum percent of total net sales and revenues in an individual country	'	'	'	'	'	'	'	'	10.00%	10.00%	10.00%
Maximum percent of total long-lived assets in an individual country	10.00%	'	'	'	10.00%	'	'	'	10.00%	10.00%	10.00%
Automotive [Member] | U.S. [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Long-Lived Assets	15,844	'	'	'	13,520	'	'	'	15,844	13,520	11,736
Automotive [Member] | Non-U.S. [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Long-Lived Assets	12,289	'	'	'	12,425	'	'	'	12,289	12,425	13,709
GM Financial [Member] | U.S. [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Long-Lived Assets	2,472	'	'	'	1,112	'	'	'	2,472	1,112	532
GM Financial [Member] | Non-U.S. [Member]	'	'	'	'	'	'	'	'	'	'	'
Revenues from External Customers and Long-Lived Assets [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Long-Lived Assets	$1,043	'	'	'	$590	'	'	'	$1,043	$590	$300

Supplemental_Information_for_t2

Supplemental Information for the Consolidated Statements of Cash Flows (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounts Receivable	$8	($460)	($1,572)
Inventories	59	-326	-2,760
Automotive Equipment on Operating Lease	-968	370	-522
Change in Other Assets	-563	-312	-320
Accounts Payable	-485	162	2,139
Income Taxes Payable	-161	155	-360
Accrued Liabilities and Other Liabilities	784	1,041	-727
Change in other operating assets and liabilities	-1,326	630	-4,122
Cash Paid for Income Taxes	727	575	569
Cash Paid for Interest (net of amounts capitalized)	1,059	633	510
Automotive [Member]	'	'	'
Cash Paid for Interest (net of amounts capitalized)	299	335	226
GM Financial [Member]	'	'	'
Cash Paid for Interest (net of amounts capitalized)	$760	$298	$284