CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Cash and cash equivalents, VIE	$ 176	$ 198
Accounts and notes receivable, net, VIE	68	49
Other, VIE	40	39
Other Assets:
Regulatory assets, VIE	$ 2,460	$ 2,597