Fair Value Measurements Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2012

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table presents assets and liabilities accounted for at fair value on a recurring basis as of September 30, 2012 by fair value hierarchy level.

	September 30, 2012
(In millions)	Level 1		Level 2		Level 3		Collateral		Total
Derivative instruments, assets
Commodity	$	—	$	47	$	—	$	1	$	48
Interest rate	—		22		—		—		22
Foreign currency	—		20		—		—		20
Derivative instruments, assets	—		89		—		1		90
Derivative instruments, liabilities
Commodity	—		2		—		—		2
Foreign currency	—		1		—		—		1
Derivative instruments, liabilities	$	—	$	3	$	—	$	—	$	3

Fair value recurring derivative level 3 rollforward [Table Text Block]

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table Text Block]

The following tables show the values of assets, by major class, measured at fair value on a nonrecurring basis in periods subsequent to their initial recognition.

	Three Months Ended September 30,
	2012				2011
(In millions)	Fair Value		Impairment		Fair Value		Impairment
Long-lived assets held for use	$	2	$	8	$	—	$	—

	Nine Months Ended September 30,
	2012				2011
(In millions)	Fair Value		Impairment		Fair Value		Impairment
Long-lived assets held for use	$	77	$	271	$	226	$	282
Intangible assets	$	—	$	—	$	—	$	25

Fair Value, by Balance Sheet Grouping [Table Text Block]

The following table summarizes financial instruments, excluding trade accounts receivables and payables and derivative financial instruments, and their reported fair value by individual balance sheet line item at September 30, 2012 and December 31, 2011:

	September 30, 2012				December 31, 2011
	Fair		Carrying		Fair		Carrying
(In millions)	Value		Amount		Value		Amount
Financial assets
Other current assets	$	135	$	134	$	146	$	148
Other noncurrent assets	158		158		68		68
Total financial assets	293		292		214		216
Financial liabilities
Other current liabilities	13		13		—		—
Long-term debt, including current portion(a)	5,639		4,653		5,479		4,753
Deferred credits and other liabilities	100		101		36		38
Total financial liabilities	$	5,752	$	4,767	$	5,515	$	4,791

^(a)      Excludes capital leases.