Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability [Table Text Block]

The Company recorded the activity related to the warranty reserve for the the years endedDecember 31 as follows:

In millions	2017		2016		2015
Warranty reserve liability
Beginning balance as of January 1	$	27	$	24	$	22
Accruals for warranties issued	43		42		41
Settlements (in cash or in kind)	(44)		(39)		(39)
Ending balance as of December 31	$	26	$	27	$	24

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum lease payments under non-cancelable operating leases as of December 31, 2017, for the following fiscal years are:

In millions	2018		2019		2020		2021		2022
Minimum lease obligations	$	135	$	96	$	65	$	49	$	41