Annual report pursuant to Section 13 and 15(d)

Segment Information (Details)

v2.4.0.6
Segment Information (Details) (USD $)
 12 Months Ended
Sep. 30, 2012
divisions
Sep. 25, 2011
Sep. 26, 2010
Notes to Financial Statements [Abstract]      
Number of divisions aggregated into the QWI segment 4    
Number of divisions aggregated into the QSI segment 3    
FLO TV assets included in QSI's assets $ 59,000,000 $ 913,000,000 $ 1,300,000,000
Investments in equity method investees included in QSI's assets 11,000,000 20,000,000 20,000,000
QMT assets included in reconciling items 1,200,000,000 806,000,000 384,000,000
Net book values of long-lived assets located outside of the United States 1,100,000,000 629,000,000 221,000,000
Net book values of long-lived assets located in the United States 1,800,000,000 1,800,000,000 2,200,000,000
Certain unallocated cost of equipment and services revenues related to acquisitions 225,000,000 143,000,000  
Certain unallocated selling, general and administrative expenses related to acquisitions 43,000,000 59,000,000  
Certain unallocated research and development expenses related to acquisitions 0 6,000,000  
Revenues, EBT and Total Assets for Reportable Segments [Line items]      
Assets held for sale 1,109,000,000 746,000,000  
QSI [Member]
      
Revenues, EBT and Total Assets for Reportable Segments [Line items]      
Assets held for sale $ 1,100,000,000