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Commitments and Guarantees (Details) (Schedule of Changes in Product Warranty Liability) - USD ($)
$ in Millions
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Changes in Product Warranty Liability [Roll Forward]    
Beginning balance $ 12 $ 15
New warranties issued during the period 25 21
Settlements during the period (21) (19)
Changes in liability for pre-existing warranties during the period, including expirations (4) (5)
Ending balance $ 12 $ 12