Interest Expense, Net (Tables)

6 Months Ended

Jun. 30, 2018

Interest Expense, Net

Components of net interest expense

	Three Months Ended				Six Months Ended
	June 30,				June 30,
In millions	2018		2017		2018		2017
Interest expense	$	689	$	251	$	1,212	$	509
Interest income		(214)		(4)		(264)		(10)
Interest expense, net	$	475	$	247	$	948	$	499