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Dispositions and Other Income/(Expense)- Additional Information (Details) (ESPN STAR Sports, USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Mar. 30, 2013
Mar. 31, 2012
Nov. 07, 2012
ESPN STAR Sports
         
Significant Acquisitions and Disposals [Line Items]          
Equity Method Investment, Ownership Percentage         50.00%
Equity Method Investment, Net Sales Proceeds     $ 335    
Gain on sale of equity interest in ESS 0 0 219 0  
Equity Method Investment Realized Gain Loss On Disposal Net Of Tax and Allocation to NCI     125    
Guarantor Obligations, Maximum Exposure, Undiscounted         $ 800