Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Changes in Allowances for Uncollectible Accounts

The changes in the allowance for doubtful accounts for the years ended December 31, 2018, 2017 and 2016 were as follows:

In millions	2018			2017			2016
Beginning balance	$	43		$	43		$	42
Adoption of new revenue recognition guidance	(23		)	—			—
Provision charged to expense	5			3			7
Write-offs, net of recoveries	(3		)	(6		)	(6		)
Acquisitions and divestitures	—			—			1
Foreign currency translation	(1		)	3			(1		)
Ending balance	$	21		$	43		$	43

Schedule of Inventory

The major classes of inventory at December 31, 2018 and 2017 were as follows:

In millions	2018			2017
Raw material	$	523		$	465
Work-in-process	161			141
Finished goods	731			703
LIFO reserve	(97		)	(89		)
Total inventories	$	1,318		$	1,220

Net Plant and Equipment

The ranges of useful lives used to depreciate plant and equipment are as follows:

Buildings and improvements	5—50 years
Machinery and equipment	3—12 years
Equipment leased to others	Term of lease

Net plant and equipment consisted of the following at December 31, 2018 and 2017:

In millions	2018			2017
Land	$	194		$	203
Buildings and improvements	1,368			1,370
Machinery and equipment	3,352			3,301
Equipment leased to others	165			164
Construction in progress	154			123
Gross plant and equipment	5,233			5,161
Accumulated depreciation	(3,442		)	(3,383		)
Net plant and equipment	$	1,791		$	1,778

Changes in Accrued Warranties

The changes in accrued warranties for the years ended December 31, 2018, 2017 and 2016 were as follows:

In millions	2018			2017			2016
Beginning balance	$	45		$	45		$	46
Charges	(49		)	(45		)	(41		)
Provision charged to expense	50			43			42
Acquisitions and divestitures	—			—			1
Foreign currency translation	(1		)	2			(3		)
Ending balance	$	45		$	45		$	45