Fair Value Measurement (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis

The following table sets forth the Company’s assets and liabilities that are measured at fair value on a recurring basis at the date indicated:

	Fair Value as of		Fair Value Measurements at December 31, 2012 Using Fair Value Hierarchy
	December 31, 2012		Level 1		Level 2		Level 3
Assets:
Commodity derivatives	$	1	$	—	$	1	$	—
Total	$	1	$	—	$	1	$	—
Liabilities:
Commodity derivatives	$	13	$	—	$	13	$	—
Interest-rate swap derivatives	77		—		77		—
Total	$	90	$	—	$	90	$	—

	Fair Value as of		Fair Value Measurements at December 31, 2011 Using Fair Value Hierarchy
	December 31, 2011		Level 1		Level 2		Level 3
Assets:
Commodity derivatives	$	4	$	—	$	4	$	—
Long-term investments	1		1		—		—
Total	$	5	$	1	$	4	$	—
Liabilities:
Commodity derivatives	$	44	$	—	$	44	$	—
Interest-rate swap derivatives	80		—		80		—
Total	$	124	$	—	$	124	$	—