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
 3 Months Ended 0 Months Ended
Mar. 31, 2012
Classes_of_Common_Stock
Mar. 31, 2011
Mar. 31, 2012
Settled Options
Mar. 31, 2011
Settled Options
Mar. 31, 2012
Class A common stock
Vote
Mar. 31, 2011
Class A common stock
Mar. 31, 2012
Class B common stock
Vote
Mar. 31, 2011
Class B common stock
Mar. 31, 2012
Additional Paid-in Capital
Mar. 31, 2011
Additional Paid-in Capital
Mar. 31, 2012
Accelerated Share Repurchase Program March 2012
May 03, 2012
Repurchase of Equity Authorization
Stockholders Equity Note [Line Items]                        
Classes of Common Stock, Number 2                      
Votes per common share         10   1          
Common stock, par value         $ 0.01   $ 0.01          
Common stock, shares authorized         4,600,000,000   5,600,000,000          
Preferred stock, shares authorized 200,000,000                      
Preferred stock, par value $ 0.01                      
Preferred stock, issued 0                      
Total of Class A and Class B common stock, repurchased, value $ 542 $ 501             $ 428 $ 176    
Common stock authorized for purchase, amount                     350 5,000
Option premiums received (paid)     $ (155) $ 25         $ 155 $ (25)    
Common stock authorized for purchase, shares                     4,600,000  
Common stock purchases 7,100,000 6,800,000     2,000,000 2,000,000 5,000,000 5,000,000