Income Taxes (Tables)

6 Months Ended

Jun. 30, 2013

Income Taxes [Abstract]

Net Operating Loss Carryforwards and Tax Credit Carryforwards

Table 126: Net Operating Loss Carryforwards and Tax Credit Carryforwards
		June 30			December 31
In millions		2013			2012
Net Operating Loss Carryforwards:
	Federal		$	1,157	$	1,698
	State			2,371		2,468
Tax Credit Carryforwards:
	Federal		$	33	$	29
	State			4		4
Valuation Allowance:
	State		$	59	$	54