Registration of securities issued in business combination transactions

FAIR VALUE (Details 2)

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FAIR VALUE (Details 2) (Recurring basis, USD $)
In Millions, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Dec. 31, 2010
Estimated Fair Value
      
Assets:      
Total assets $ 43 $ 39 $ 30
Estimated Fair Value | Cross currency interest rate contract
      
Assets:      
Total assets 29 27 19
Estimated Fair Value | Interest rate contract
      
Liabilities:      
Total liabilities (19) (17) (9)
Estimated Fair Value | Equity mutual funds
      
Assets:      
Total assets 14 12 11
Quoted prices in active markets for identical assets (Level 1)
      
Assets:      
Total assets 14 12 11
Quoted prices in active markets for identical assets (Level 1) | Equity mutual funds
      
Assets:      
Total assets 14 12 11
Significant other observable inputs (Level 2)
      
Assets:      
Total assets 29    
Significant other observable inputs (Level 2) | Cross currency interest rate contract
      
Assets:      
Total assets 29    
Significant other observable inputs (Level 2) | Interest rate contract
      
Liabilities:      
Total liabilities (19) (17) (9)
Significant unobservable inputs (Level 3)
      
Assets:      
Total assets   27 19
Significant unobservable inputs (Level 3) | Cross currency interest rate contract
      
Assets:      
Total assets   $ 27 $ 19