Inventories, net (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Finished goods	$ 206	$ 149
Purchased parts and components	16	22
Inventories, net	222	171
Inventory reserves	$ 65	$ 42

Amount of valuation reserve for inventory.

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