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GUARANTEES (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Income and Revenue Collection Guarantee
 
Guarantee Obligations  
Maximum potential amount of future payments under guarantees $ 146
Guarantor obligations, current carrying value 101
Guaranteed Minimum Rent
 
Guarantee Obligations  
Maximum potential amount of future payments under guarantees 6
Liability for the fair value of guarantees 4
Guarantor obligations, current carrying value 1
Guarantee obligations for recorded liabilities, long term $ 3