v2.4.0.6

Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2011

Asset Retirement Obligations [Abstract]

Schedule Of Asset Retirement Obligations

	Year Ended December 31,
	2011	2010
	(In millions)
Asset retirement obligations as of beginning of year	$     1,497	$     1,513
Liabilities incurred	53	55
Liabilities settled	(82)	(129)
Revision of estimated obligation	25	194
Liabilities assumed by others	—	(269)
Accretion expense on discounted obligation	92	92
Foreign currency translation adjustment	(22)	41
Asset retirement obligations as of end of year	1,563	1,497
Less current portion	67	74
Asset retirement obligations, long-term	$     1,496	$     1,423

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- Definition

Tabular disclosure of the carrying amount of a liability for asset retirement obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Topic 410

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

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