Asset Sales Impairments and Other Accruals (Tables)

9 Months Ended

Sep. 30, 2011

Asset Sales Impairments and Other Accruals [Abstract]

Schedule of Other Operating Cost and Expense, by Component [Table Text Block]

		Three months ended				Nine months ended
		September 30,				September 30,
		2011		2010		2011		2010
		(Millions)
Williams Partners
	Capitalization of project feasibility costs previously expensed	$	-	$	-	$	(10)	$	-
	Involuntary conversion gains		-		(7)		-		(18)
	Gain on sale of certain assets		-		(12)		-		(12)
Exploration & Production
	Impairment of goodwill		-		1,003		-		1,003
	Impairments of producing properties and acquired unproved reserves		-		678		-		678