CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) Balance Sheet Parenthetical (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Cash and Cash Equivalents	$ 215	$ 207
Allowance for Doubtful Accounts Receivable, Current	3	3
Accounts and notes receivable, net	347	261
Other	63	65
Regulatory assets	2,679	2,999
Variable Interest Entity, Primary Beneficiary [Member]
Cash and Cash Equivalents	212	207
Accounts and notes receivable, net	99	60
Other	49	41
Regulatory assets	$ 2,824	$ 3,179