Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details) (Schedule of Changes in Product Warranty Liability)

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Commitments and Contingencies (Details) (Schedule of Changes in Product Warranty Liability) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 27, 2014
Sep. 28, 2013
Changes in Product Warranty Liability [Roll Forward]        
Beginning balance $ 19 $ 14 $ 17 $ 16
New warranties issued 6 7 22 19
Settlements (9) (6) (28) (17)
Changes in liability for pre-existing warranties, including expirations 3 0 8 (3)
Ending balance $ 19 $ 15 $ 19 $ 15