Annual report pursuant to Section 13 and 15(d)

Restructuring (Summary of Each Major Type of Restructuring Cost) (Details)

v2.4.1.9
Restructuring (Summary of Each Major Type of Restructuring Cost) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 27, 2014
Dec. 28, 2013
Dec. 29, 2012
Restructuring Cost and Reserve [Line Items]      
Severance and benefits charges (reversals), net $ 42us-gaap_SeveranceCosts1 $ (5)us-gaap_SeveranceCosts1 $ 95us-gaap_SeveranceCosts1
Contract or program termination charges 6us-gaap_LossOnContractTermination 0us-gaap_LossOnContractTermination 0us-gaap_LossOnContractTermination
Asset impairment charges 6us-gaap_AssetImpairmentCharges 0us-gaap_AssetImpairmentCharges 4us-gaap_AssetImpairmentCharges
Facility consolidations and closure charges (reversals), net 4us-gaap_OtherRestructuringCosts 11us-gaap_OtherRestructuringCosts 1us-gaap_OtherRestructuringCosts
Restructuring and other special charges, net $ 58us-gaap_RestructuringCharges $ 6us-gaap_RestructuringCharges $ 100us-gaap_RestructuringCharges