Other Income and Expense (Tables)

3 Months Ended

Jun. 30, 2012

Other Income Expense Tables [Abstract]

Components Of Other Income Table

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2012		2011		2012		2011
	(in millions)
Gain on sale of assets	$	1	$	14	$	3	$	16
Other		14		20		30		34
Total other income	$	15	$	34	$	33	$	50

Components Of Other Expense Table

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2012		2011		2012		2011
	(in millions)
Loss on sale and disposal of assets	$	11	$	16	$	35	$	26
Loss on extinguishment of debt		-		15		-		15
Other		4		4		9		9
Total other expense	$	15	$	35	$	44	$	50