|**Property, Plant and Equipment**              | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|---------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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|**Property, Plant and Equipment [Abstract]**   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|Property, Plant and Equipment                  | Note H — Property, Plant and EquipmentProperty, plant and equipment are summarized below:December 28, 2018June 29, 2018(In millions)Land$43$43Software capitalized for internal use171171Buildings625620Machinery and equipment1,3941,3492,2332,183Less accumulated depreciation and amortization(1,332)(1,283)$901$900Depreciation and amortization expense related to property, plant and equipment was$33 millionand$68 millionfor the quarter and two quarters endedDecember 28, 2018, respectively, and$36 millionand$73 millionfor the quarter andtwo quarters endedDecember 29, 2017, respectively.
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|                                               | December 28, 2018                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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|                                               | (In millions)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|Land                                           | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Software capitalized for internal use          | 171                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Buildings                                      | 625                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Machinery and equipment                        | 1,394                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                                               | 2,233                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Less accumulated depreciation and amortization | (1,332                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|                                               | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

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duration X- DefinitionThe entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.
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