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CHANGE IN OPERATING WORKING CAPITAL (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
CHANGE IN OPERATING WORKING CAPITAL
Change in accounts receivable and other	$ 5	$ 7
Change in accounts payable and accrued liabilities	(2)	(3)
Change in accounts payable to affiliates	(2)	(1)
Change in accrued interest	10	10
Change in operating working capital	$ 11	$ 13

The increase (decrease) during the reporting period in the obligations due for goods and services provided by the following types of related parties: a parent company and its subsidiaries, subsidiaries of a common parent, an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.

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