v2.4.0.6
Condensed Consolidated Balance Sheets Parenthetical (Parentheticals) (USD $)
In Millions, except Share data, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 2,000,000,000 2,000,000,000
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 5,000,000,000 5,000,000,000
Common stock, shares issued 1,565,941,048 1,564,727,289
Common stock, shares outstanding 1,565,941,048 1,564,727,289
Series A Preferred Stock [Member]
    
Preferred stock, shares issued 276,101,695 276,101,695
Preferred stock, shares outstanding 276,101,695 276,101,695
Preferred stock, liquidation preference $ 25 $ 25
Series B Preferred Stock [Member]
    
Preferred stock, shares issued 100,000,000 100,000,000
Preferred stock, shares outstanding 100,000,000 100,000,000
Preferred stock, liquidation preference $ 50 $ 50
Automotive [Member]
    
Accounts and notes receivable, allowance $ 324 $ 331
Short-term and current portion of long-term debt at GM Korea which the creditors do not have recourse to our general credit 116 171
Derivative liabilities at GM Korea which the creditors do not have recourse to our general credit 31 44
GM Financial [Member]
    
Leased assets transferred to special purpose entities 478 274
Consumer Loans Auto Financing Receivable [Member] | GM Financial [Member]
    
Gross finance receivables transferred to special purpose entities 3,359 3,295
Gross finance receivables transferred to special purpose entities noncurrent $ 6,427 $ 5,773