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SHAREOWNERS' EQUITY - Additional Information (Detail) (USD $)
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0 Months Ended | 12 Months Ended | 0 Months Ended | ||||||||||
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May 03, 2012
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Dec. 31, 2012
Classes_of_Common_Stock
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2012
Settled Options
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Dec. 31, 2011
Settled Options
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Dec. 31, 2012
Class A Common Stock
Vote
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Dec. 31, 2011
Class A Common Stock
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Dec. 31, 2010
Class A Common Stock
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Dec. 31, 2012
Class B Common Stock
Vote
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Dec. 31, 2011
Class B Common Stock
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Dec. 31, 2010
Class B Common Stock
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Feb. 14, 2013
Authorization to Repurchase Shares
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| Stockholders Equity Note [Line Items] | |||||||||||||
| Classes of common stock | 2 | ||||||||||||
| Votes per common share | 10 | 1 | |||||||||||
| Common stock, par value | $ 65.11 | $ 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 | ||||||||||||
| Common stock purchases, Shares | 21,800,000 | 38,700,000 | 12,400,000 | 800,000 | 9,000,000 | 7,000,000 | 6,000,000 | 13,000,000 | 31,000,000 | 6,000,000 | |||
| Total of class A and class B common stock, repurchased, value | $ 1,638,000,000 | $ 2,669,000,000 | $ 809,000,000 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | ||||
| Share repurchase authorized amount | 5,000,000,000 | 10,000,000,000 | |||||||||||
| Share repurchase authorization remaining | 3,970,000,000 | ||||||||||||
| Option premiums received (paid) | 206,000,000 | ||||||||||||
| Options premiums received | $ 6,000,000 | ||||||||||||