Income Taxes (Tables)

9 Months Ended

Sep. 30, 2015

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Income tax rate reconciliation from statutory to effective tax rate

	Three Months Ended September 30,				Nine Months Ended September 30,
In millions	2015		2014		2015		2014
Income (loss) before income taxes	$	(55)	$	148	$	150	$	607
Provision (benefit) for income taxes	$	(20)	$	(25)	$	52	$	58
Effective tax rate		36.4%		-16.9%		34.7%		9.6%