Income Taxes (Tables)

6 Months Ended

Jun. 30, 2012

Income Taxes [Abstract]

Net Operating Loss Carryforwards and Tax Credit Carryforwards [Text Block]

Table 129: Net Operating Loss Carryforwards and Tax Credit Carryforwards
		June 30,			December 31,
In millions		2012			2011
Net Operating Loss Carryforwards:
	Federal		$	1,637	$	30
	State			2,649		1,460
	Valuation allowance – State			46		14
Tax Credit Carryforwards:
	Federal		$	103	$	112
	State			3		3