Inventories, net (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Inventories, Net
Finished goods	$ 139	$ 149
Purchased parts and components	19	22
Inventories, net	158	171
Inventory reserves	$ 47	$ 42

Amount of valuation reserve for inventory.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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