CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Cash and cash equivalents ($207 and $266 related to VIEs at December 31, 2013 and 2012, respectively)	$ 207	$ 646
Accounts and notes receivable, net ($60 and $68 related to VIEs at December 31, 2013 and 2012, respectively)	261	222
Other ($41 and $54 related to VIEs at December 31, 2013 and 2012, respectively)	65	77
Regulatory assets ($3,179 and $3,545 related to VIEs at December 31, 2013 and 2012, respectively)	2,999	3,388
Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents ($207 and $266 related to VIEs at December 31, 2013 and 2012, respectively)	207	266
Accounts and notes receivable, net ($60 and $68 related to VIEs at December 31, 2013 and 2012, respectively)	60	68
Other ($41 and $54 related to VIEs at December 31, 2013 and 2012, respectively)	41	54
Regulatory assets ($3,179 and $3,545 related to VIEs at December 31, 2013 and 2012, respectively)	$ 3,179	$ 3,545