Fair Value (Tables)

12 Months Ended

Dec. 31, 2010

Fair Value Disclosure Tables Abstract

Fair Value Summary Table

			December 31,
			2010				2009
			Carrying		Fair		Carrying		Fair
			Amount		Value		Amount		Value
			(in millions)
Assets
	Marketable securities		$	1,772	$	1,772	$	1,691	$	1,691
	Derivatives			124		124		120		120
		Total assets	$	1,896	$	1,896	$	1,811	$	1,811
Liabilities
	Debt		$	19,551	$	20,137	$	19,343	$	19,778
	Derivatives			423		423		303		303
		Total liabilities	$	19,974	$	20,560	$	19,646	$	20,081

Fair Value Hierarchy For Recurring Measurements Table

			Quoted Market		Significant
			Prices in Active		Other		Significant
			Market for		Observable		Unobservable		Total
			Identical Assets		Inputs		Inputs		December 31,
			(Level 1)		(Level 2)		(Level 3)		2010
			(in millions)
Assets
	Available-for-sale securities		$	8	$	1,712	$	42	$	1,762
	Trading securities			10		-		-		10
	Derivatives			-		63		61		124
		Total assets	$	18	$	1,775	$	103	$	1,896
Liabilities
	Derivatives		$	-	$	411	$	12	$	423
		Total liabilities	$	-	$	411	$	12	$	423
			Quoted Market		Significant
			Prices in Active		Other		Significant
			Market for		Observable		Unobservable		Total
			Identical Assets		Inputs		Inputs		December 31,
			(Level 1)		(Level 2)		(Level 3)		2009
			(in millions)
Assets
	Available-for-sale securities		$	133	$	1,501	$	42	$	1,676
	Trading securities			7		-		-		7
	Derivatives			-		90		30		120
		Total assets	$	140	$	1,591	$	72	$	1,803
Liabilities
	Derivatives		$	-	$	273	$	30	$	303
		Total liabilities	$	-	$	273	$	30	$	303

Derivatives Level 3 Rollforward Table

				Year Ended December 31,
				2010										2009
				Interest		Cross		Foreign		Commodity
				Rate		Currency		Currency		& Other		Total		Total
			(in millions)
Balance at beginning of period(1)				$	(12)	$	(12)	$	-	$	24	$	-	$	(71)
	Total gains (losses) (realized and unrealized):
		Included in earnings(2)			1		4		25		21		51		(18)
		Included in other comprehensive income			(12)		13		-		-		1		134
		Included in regulatory assets			(3)		-		-		1		(2)		-
	Purchases, issuances and settlements				7		5		(1)		(28)		(17)		31
	Transfers of assets (liabilities) into Level 3(3)				-		-		(2)		-		(2)		1
	Transfers of (assets) liabilities out of Level 3(3)				18		-		-		-		18		(77)
Balance at end of period(1)				$	(1)	$	10	$	22	$	18	$	49	$	-
Total gains (losses) for the period included in earnings
	attributable to the change in unrealized gains
	(losses) relating to assets and liabilities held at the
	end of the period			$	-	$	7	$	24	$	9	$	40	$	(2)

Available For Sale Securities Level 3 Rollforward Table

			Year Ended December 31,
			2010		2009
		(in millions)
Balance at beginning of period(1)			$	42	$	42
	Purchases, issuances and settlements			-		-
Balance at end of period			$	42	$	42
Total gains (losses) for the period included in earnings attributable to the
	change in unrealized gains/losses relating to assets held at the
	end of the period		$	-	$	-

Fair Value Assets Measured On Nonrecurring Basis Text Block

				Year Ended December 31, 2010
			Carrying	Fair Value						Gross
			Amount(1)	Level 1		Level 2		Level 3		(Gain) Loss
			(in millions)
Long-lived assets held and used:
	Southland (Huntington Beach)	$	288	$	-	$	-	$	88	$	200
	Tisza II		160		-		-		75		85
	Deepwater		83		-		-		4		79
Discontinued operations and
businesses held for sale:
	Eastern Energy		827		-		-		-		827
	Barka		20		-		124		-		(104)
	Ras Laffan		120		-		226		-		(106)
Goodwill:
	Deepwater		18		-		-		-		18
	Other		3		-		-		-		3