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COMMITMENTS AND CONTINGENT LIABILITIES (Asset Retirement Obligations) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2011	Dec. 31, 2010
Commitments and Contingencies Disclosure [Abstract]
Asset retirement obligation	$ 101	$ 99
Asset retirement obligation discount rate	1.78%	1.78%

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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