Quarterly report pursuant to Section 13 or 15(d)

SHAREOWNERS' EQUITY - Additional Information (Detail)

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SHAREOWNERS' EQUITY - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
 0 Months Ended 3 Months Ended 6 Months Ended
May 03, 2012
Jun. 30, 2012
Classes_of_Common_Stock
Jun. 30, 2012
Jun. 30, 2011
Stockholders Equity Note [Line Items]        
Classes of Common Stock, Number   2    
Preferred stock, shares authorized   200,000,000 200,000,000  
Preferred stock, par value   $ 0.01 $ 0.01  
Preferred stock, issued   0 0  
Total of Class A and Class B common stock, repurchased, value     $ 870 $ 1,055
Common stock authorized for purchase, amount 5,000      
Common stock purchases     11,300,000 14,400,000
Settled Options
        
Stockholders Equity Note [Line Items]        
Option premiums received (paid)     (206) 150
Class A common stock
        
Stockholders Equity Note [Line Items]        
Votes per common share   10 10  
Common stock, par value   $ 0.01 $ 0.01  
Common stock, shares authorized   4,600,000,000 4,600,000,000  
Common stock purchases     3,000,000 4,000,000
Class B common stock
        
Stockholders Equity Note [Line Items]        
Votes per common share   1 1  
Common stock, par value   $ 0.01 $ 0.01  
Common stock, shares authorized   5,600,000,000 5,600,000,000  
Common stock purchases     8,000,000 10,000,000
Additional Paid-in Capital
        
Stockholders Equity Note [Line Items]        
Total of Class A and Class B common stock, repurchased, value     606 209
Option premiums received (paid)     206 (150)
StockRepurchaseProgramRepurchaseAmountUnsettled   (35) (35) 0
Accelerated Share Repurchase Program March 2012
        
Stockholders Equity Note [Line Items]        
Common stock authorized for purchase, amount   230    
Common stock authorized for purchase, shares   2,900,000 2,900,000  
StockRepurchaseProgramRepurchaseAmountUnsettled   $ 35 $ 35