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Supplemental Balance Sheet Information (Details) (Property, Plant and Equipment) - USD ($)
$ in Millions
Jun. 27, 2015
Dec. 27, 2014
Land and land improvements $ 2 $ 4
Buildings and leasehold improvements 230 246
Equipment 1,407 1,416
Construction in progress 23 14
Property, plant and equipment, gross 1,662 1,680
Accumulated depreciation and amortization (1,373) (1,378)
Total property, plant and equipment, net $ 289 $ 302