CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) Balance Sheet Parenthetical (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Cash and Cash Equivalents	$ 213	$ 290
Allowance for Doubtful Accounts Receivable, Current	4	3
Accounts and notes receivable, net	253us-gaap_AccountsAndNotesReceivableNet	237us-gaap_AccountsAndNotesReceivableNet
Other	54us-gaap_OtherAssetsCurrent	74us-gaap_OtherAssetsCurrent
Regulatory assets	2,556us-gaap_RegulatoryAssetsNoncurrent	2,629us-gaap_RegulatoryAssetsNoncurrent
Variable Interest Entity, Primary Beneficiary [Member]
Cash and Cash Equivalents	212	290
Accounts and notes receivable, net	55	58
Other	43	47
Regulatory assets	$ 2,670	$ 2,738

Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of account and note receivables due from other than related parties.

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer).

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Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

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