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Financial Instruments Available for Sale (Details) (USD $)
In Millions, unless otherwise specified
Sep. 28, 2013
Schedule of Available-for-sale Securities [Line Items]  
Available-for-sale Securities, Amortized Cost Basis $ 253 [1]
Available-for-sale Securities, Gross Unrealized Gains 0 [1]
Available-for-sale Securities, Fair Value Disclosure 253 [1]
Commercial Paper [Member]
 
Schedule of Available-for-sale Securities [Line Items]  
Available-for-sale Securities, Amortized Cost Basis 158 [1]
Available-for-sale Securities, Gross Unrealized Gains 0 [1]
Available-for-sale Securities, Fair Value Disclosure 158 [1]
Corporate Debt Securities [Member]
 
Schedule of Available-for-sale Securities [Line Items]  
Available-for-sale Securities, Amortized Cost Basis 95 [1]
Available-for-sale Securities, Gross Unrealized Gains 0 [1]
Available-for-sale Securities, Fair Value Disclosure $ 95 [1]
[1] (1)Categorized as level 1: Observable input such as quoted prices in active markets for identical assets or liabilities