Supplemental Financial Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other (expense) income, net
Interest income	$ 6	$ 6	$ 5
Impairment of an investment (Note 12)	0	(7)	0
Other, net	(15)	(7)	(8)
Total other (expense) income, net	(9)	(8)	(3)
Accounts Receivable
Accounts Receivable, gross	1,357	1,102
Less: allowance for doubtful accounts	(18)	(16)
Total accounts receivable, net	1,339	1,086
Inventories
Work in process and raw materials	135	187
Finished goods	202	167
Service parts	453	443
Total inventories	790	797
Other current assets
Current deferred tax assets	262	223
Other	306	231
Total other current assets	568	454
Property, plant and equipment
Property, plant and equipment, gross	999	909
Less: accumulated depreciation	(647)	(601)
Total property, plant and equipment, net	352	308
Land and improvements [Member]
Property, plant and equipment
Property, plant and equipment, gross	40	42
Buildings and improvements [Member]
Property, plant and equipment
Property, plant and equipment, gross	237	231
Machinery and other equipment [Member]
Property, plant and equipment
Property, plant and equipment, gross	722	636
Trade Accounts Receivable [Member]
Accounts Receivable
Accounts Receivable, gross	1,318	1,056
Other Receivables [Member]
Accounts Receivable
Accounts Receivable, gross	$ 39	$ 46