CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) Balance Sheet Parenthetical (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Cash and Cash Equivalents	$ 188	$ 207
Allowance for Doubtful Accounts Receivable, Current	3	3
Accounts and notes receivable, net	320	261
Other	60	65
Regulatory assets	2,820	2,999
Variable Interest Entity, Primary Beneficiary [Member]
Cash and Cash Equivalents	188	207
Accounts and notes receivable, net	94	60
Other	51	41
Regulatory assets	$ 2,971	$ 3,179