Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2011

Property, Plant and Equipment [Abstract]

Unevaluated capitalized costs of oil and natural gas

	September 30,		December 31,
	2011		2010
	(In millions)
U.S.
Acquisition	$	338	$	407
Exploration		119		130
Total U.S		457		537
Brazil & Egypt
Acquisition		34		45
Exploration		45		203
Total Brazil & Egypt		79		248
Worldwide	$	536	$	785