|**Commitments And Contingencies (Tables)**              | 3 Months Ended                                                                                                                                                                                                                                                                                                                 
|------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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|**Commitments and Contingencies Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                
|Schedule Of Product Warranty Liability                  | Changes in the Company’s product warranty liability during thethreemonths endedApril 4, 2015andMarch 29, 2014were as follows (in millions):Three Months EndedApril 4, 2015March 29, 2014Balance at beginning of period$35$37Warranty expense (income) recognized(2)1Warranty credits issued(1)(1)Balance at end of period$32$37
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|                                                        | Three Months Ended                                                                                                                                                                                                                                                                                                             
|                                                        | April 4, 2015                                                                                                                                                                                                                                                                                                                  
|Balance at beginning of period                          | $                                                                                                                                                                                                                                                                                                                              
|Warranty expense (income) recognized                    | (2                                                                                                                                                                                                                                                                                                                             
|Warranty credits issued                                 | (1                                                                                                                                                                                                                                                                                                                             
|Balance at end of period                                | $                                                                                                                                                                                                                                                                                                                              

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                    duration X- DefinitionTabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.+ ReferencesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249+ Details**Name:**
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