Supplemental Financial Information

3 Months Ended

Mar. 31, 2017

Supplemental Financial Information [Abstract]

Supplemental Financial Information

16. SUPPLEMENTAL FINANCIAL INFORMATION

The components of accounts receivable are summarized as follows:

In millions	March 31, 2017			December 31, 2016
Accounts receivable
Trade	$	1,290		$	1,266
Other	49			57
Accounts receivable, gross	1,339			1,323
Less: allowance for doubtful accounts	(41		)	(41		)
Total accounts receivable, net	$	1,298		$	1,282

The components of inventory are summarized as follows:

In millions	March 31, 2017		December 31, 2016
Inventories
Work in process and raw materials	$	197	$	154
Finished goods	195		149
Service parts	408		396
Total inventories	$	800	$	699