Supplemental Financial Information

6 Months Ended

Jun. 30, 2013

Supplemental Financial Information [Abstract]

Supplemental Financial Information

3. SUPPLEMENTAL FINANCIAL INFORMATION

The components of accounts receivable are summarized as follows:

In millions	June 30, 2013	December 31, 2012
Accounts receivable
Trade	$1,244	$1,056
Other	42	46
Accounts receivable, gross	1,286	1,102
Less: allowance for doubtful accounts	(20)	(16)
Total accounts receivable, net	$1,266	$1,086

The components of inventory are summarized as follows:

In millions	June 30, 2013	December 31, 2012
Inventories, net
Work in process and raw materials	$162	$187
Finished goods	208	167
Service parts	455	443
Total inventories, net	$825	$797