Income Taxes (Tables)

3 Months Ended

Mar. 31, 2017

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Income (loss) from operations before provision (benefit) for income taxes

		Three Months Ended March 31,
In millions		2017		2016
Income (loss) before income taxes	$	(120)	$	(101)
Provision (benefit) for income taxes	$	(48)	$	(23)
Effective tax rate		40.0%		22.8%