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Commitments and Contingencies (Details) (Schedule of Changes in Product Warranty Liability) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
Changes in Product Warranty Liability [Roll Forward]        
Beginning balance $ 18 $ 14 $ 17 $ 16
New warranties issued 8 6 16 12
Settlements (10) (5) (19) (11)
Changes in liability for pre-existing warranties, including expirations 3 (1) 5 (3)
Ending balance $ 19 $ 14 $ 19 $ 14