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Pensions And Other Postretirement Benefits (Categories Of Pension Plan Assets And Level Under Which Fair Values Were Determined In Fair Value Hierarchy) (Details) (USD $)
In Millions, unless otherwise specified
Sep. 27, 2014
Sep. 28, 2013
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets $ 1,650 $ 85
Cash and Cash Equivalents [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 79 1
Total Fixed Income Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 1,317 56
Bond and Fixed Income Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 377 56
Corporate Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 680 0
Government and Municipal Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 253 0
Mortgage Backed Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 7 0
Total Equity Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 232 11
US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 84 3
Non-US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 101 5
Commodity Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 14 0
Global Real Estate Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 33 3
Other [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 7 3
Insurance Contract At Contract Value [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 15 14
Level 1 [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 79 1
Level 1 [Member] | Cash and Cash Equivalents [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 79 1
Level 1 [Member] | Total Fixed Income Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Bond and Fixed Income Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Corporate Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Government and Municipal Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Mortgage Backed Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Total Equity Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Non-US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Commodity Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Global Real Estate Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Other [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 1 [Member] | Insurance Contract At Contract Value [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 2 [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 1,549 67
Level 2 [Member] | Cash and Cash Equivalents [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 2 [Member] | Total Fixed Income Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 1,310 56
Level 2 [Member] | Bond and Fixed Income Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 377 56
Level 2 [Member] | Corporate Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 680 0
Level 2 [Member] | Government and Municipal Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 253 0
Level 2 [Member] | Mortgage Backed Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 2 [Member] | Total Equity Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 232 11
Level 2 [Member] | US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 84 3
Level 2 [Member] | Non-US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 101 5
Level 2 [Member] | Commodity Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 14 0
Level 2 [Member] | Global Real Estate Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 33 3
Level 2 [Member] | Other [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 7 0
Level 2 [Member] | Insurance Contract At Contract Value [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 22 17
Level 3 [Member] | Cash and Cash Equivalents [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Total Fixed Income Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 7 0
Level 3 [Member] | Bond and Fixed Income Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Corporate Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Government and Municipal Bonds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Mortgage Backed Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 7 0
Level 3 [Member] | Total Equity Securities [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Non-US Securities Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Commodity Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Global Real Estate Funds [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 0
Level 3 [Member] | Other [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets 0 3
Level 3 [Member] | Insurance Contract At Contract Value [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined benefit pension plan assets $ 15 $ 14