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Other Financial Data (Inventories, Net) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Inventory, Net [Abstract]    
Finished goods $ 232 $ 244
Work-in-process and production materials 468 432
Inventories, gross 700 676
Less inventory reserves (178) (163)
Inventories, net $ 522 $ 513