Fair Value (Tables)

9 Months Ended

Sep. 30, 2011

Fair Value Measurements Note Tables [Abstract]

Derivative fair value assets and liabilities table - Recurring

	December 31, 2010
(In millions)		Level 1		Level 2		Level 3		Collateral		Total
Derivative instruments, assets
Commodity	$	58	$	0	$	1	$	81	$	140
Interest rate		0		32		0		0		32
Derivative instruments, assets		58		32		1		81		172
Derivative instruments, liabilities
Commodity		(102)		0		(3)		0		(105)
Derivative instruments, liabilities	$	(102)	$	0	$	(3)	$	0	$	(105)

Derivative fair value level 3 rollforward table - Recurring

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In millions)	2011		2010		2011		2010
Beginning balance	$	-	$	(3)	$	(2)	$	9
Included in net income		-		4		-		23
Included in other comprehensive income		-		-		-		4
Transfers to Level 2		-		-		-		(30)
Purchases		-		-		-		2
Settlements		-		1		-		(6)
Spin-off downstream business		-		-		2		-
Ending balance	$	-	$	2	$	-	$	2

Nonrecurring fair value table

		Three Months Ended September 30,
		2011				2010
(In millions)		Fair Value		Impairment		Fair Value		Impairment
Equity method investment		0		0		0		25
		Nine Months Ended September 30,
		2011				2010
(In millions)		Fair Value		Impairment		Fair Value		Impairment
Long-lived assets held for use	$	226	$	282	$	146	$	439
Equity method investment		0		0		0		25
Intangible assets	$	0	$	25	$	0	$	0

Financial instruments fair value table

	September 30, 2011				December 31, 2010
		Fair		Carrying		Fair		Carrying
(In millions)		Value		Amount		Value		Amount
Financial assets
Other current assets	$	223	$	220	$	226	$	220
Other noncurrent assets		273		276		396		231
Total financial assets		496		496		622		451
Financial liabilities
Long-term debt, including current portion{a}		5,636		4,985		8,364		7,527
Deferred credits and other liabilities		33		35		66		67
Total financial liabilities	$	5,669	$	5,020	$	8,430	$	7,594

(a)Excludes capital leases.