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Industry Segment Operations (Capital Expenditures) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Oct. 26, 2014
Oct. 27, 2013
Oct. 28, 2012
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures $ 241us-gaap_PaymentsToAcquirePropertyPlantAndEquipment $ 197us-gaap_PaymentsToAcquirePropertyPlantAndEquipment $ 162us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Operating Segments [Member]      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures 146us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_OperatingSegmentsMember		 132us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_OperatingSegmentsMember		 86us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_OperatingSegmentsMember
Shared facilities and information technology assets [Member]      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures $ 95us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 65us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 76us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_MaterialReconcilingItemsMember