| 
           DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Balance sheet location of derivative assets and liabilities and their related fair values (Detail) (USD $) 
        In Millions, unless otherwise specified  | 
        
           Dec. 31, 2012 
         | 
        
           Dec. 31, 2011 
         | 
      
|---|---|---|
| Asset Derivatives | ||
| Asset Derivatives | $ 566 | $ 649 | 
| Liability Derivatives | ||
| Liability Derivatives | 159 | 208 | 
| 
           Foreign exchange contracts 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 44 | 166 | 
| Liability Derivatives | ||
| Liability Derivatives | 104 | 185 | 
| 
           Interest rate contracts 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 522 | 483 | 
| Liability Derivatives | ||
| Liability Derivatives | 55 | 23 | 
| 
           Fair Value, Inputs, Level 2 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 566 | 649 | 
| Liability Derivatives | ||
| Liability Derivatives | 159 | 208 | 
| 
           Fair Value, Inputs, Level 2 | Foreign exchange contracts 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 44 | 166 | 
| Liability Derivatives | ||
| Liability Derivatives | 104 | 185 | 
| 
           Fair Value, Inputs, Level 2 | Interest rate contracts 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 522 | 483 | 
| Liability Derivatives | ||
| Liability Derivatives | 55 | 23 | 
| 
           Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Foreign exchange contracts | Other current assets 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 27 | 164 | 
| 
           Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Foreign exchange contracts | Other non-current assets 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 14 | 0 | 
| 
           Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Foreign exchange contracts | Other non-current liabilities 
         | 
        ||
| Liability Derivatives | ||
| Liability Derivatives | 103 | 185 | 
| 
           Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Interest rate contracts | Other current assets 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 1 | 0 | 
| 
           Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Interest rate contracts | Other non-current assets 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 420 | 401 | 
| 
           Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Interest rate contracts | Other non-current liabilities 
         | 
        ||
| Liability Derivatives | ||
| Liability Derivatives | 14 | 13 | 
| 
           Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument | Foreign exchange contracts | Other current assets 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 3 | 2 | 
| 
           Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument | Foreign exchange contracts | Other current liabilities 
         | 
        ||
| Liability Derivatives | ||
| Liability Derivatives | 1 | 0 | 
| 
           Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument | Interest rate contracts | Other non-current assets 
         | 
        ||
| Asset Derivatives | ||
| Asset Derivatives | 101 | 82 | 
| 
           Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument | Interest rate contracts | Other non-current liabilities 
         | 
        ||
| Liability Derivatives | ||
| Liability Derivatives | $ 41 | $ 10 |