Quarterly report pursuant to Section 13 or 15(d)

Segment Information Revenues, EBT, and Assets for Reportable Segments (Details)

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Segment Information Revenues, EBT, and Assets for Reportable Segments (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 30, 2012
Dec. 25, 2011
Sep. 30, 2012
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues $ 6,018 $ 4,681  
EBT 2,327 1,721  
Assets 44,841   43,012
QCT
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues 4,120 3,085  
EBT 1,068 739  
Assets 2,711   2,278
Segment Reporting Information, Operating Income (Loss) [Abstract]      
Revenue from external customers 4,119 3,084  
Intersegment revenues 1 1  
QTL
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues 1,757 1,440  
EBT 1,532 1,267  
Assets 74   63
Segment Reporting Information, Operating Income (Loss) [Abstract]      
Revenue from external customers 1,757 1,440  
Intersegment revenues 0 0  
QWI
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues 146 152  
EBT (3) 1  
Assets 128   129
Segment Reporting Information, Operating Income (Loss) [Abstract]      
Revenue from external customers 146 152  
Intersegment revenues 0 0  
QSI
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues 0 0  
EBT (17) (34)  
Assets 1,475   1,424
Reconciling Items [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues (5) 4  
EBT (253) (252)  
Assets 40,453   39,118
Nonreportable segments [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues (4) 5  
Intersegment eliminations [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
Revenues (1) (1)  
Unallocated cost of equipment and services revenues [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
EBT (83) (70)  
Unallocated research and development expenses [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
EBT (186) (162)  
Unallocated selling, general and administrative expenses [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
EBT (111) (115)  
Unallocated investment income, net [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
EBT 248 190  
Nonreportable segments [Member]
     
Revenues, EBT, and Assets for reportable segments [Line Items]      
EBT $ (121) $ (95)