Note 13: Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Cash Expenditures For Pollution Prevention and Waste Treatment [Table Text Block]

	For the Year Ended December 31,
(in millions)	2012		2011		2010
Recurring costs for pollution prevention and waste treatment	$	28	$	33	$	34
Capital expenditures for pollution prevention and waste treatment		1		1		1
Site remediation costs		1		2		2
Total	$	30	$	36	$	37

Schedule of Asset Retirement Obligations [Table Text Block]

	For the Year Ended December 31,
(in millions)	2012			2011			2010
Asset retirement obligations as of January 1	$	66		$	57		$	62
Liabilities incurred in the current period		6			15			-
Liabilities settled in the current period		(1	)		(9	)		(8	)
Accretion expense		3			4			3
Revisions in estimated cash flows		(4	)		(1	)		-
Asset retirement obligations as of December 31	$	70		$	66		$	57