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Acquisitions - Additional Information (Detail) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 0 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Oct. 01, 2011
Oct. 05, 2012
Hulu Llc
Sep. 28, 2013
Hulu Llc
Sep. 29, 2012
Hulu Llc
Sep. 28, 2013
Hulu Llc
HuluLlcJointVenturePartners [Member]
Jul. 31, 2013
Hulu Llc
HuluLlcJointVenturePartners [Member]
Oct. 05, 2012
Hulu Llc
HuluLlcJointVenturePartners [Member]
Oct. 05, 2012
Hulu Llc
Equity Interest Held By Providence Equity Partners [Member]
Aug. 22, 2012
AETN
Aug. 21, 2012
AETN
Aug. 22, 2012
AETN
Hearst Corporation
Aug. 21, 2012
AETN
Hearst Corporation
Aug. 21, 2012
AETN
NBCUniversal
Dec. 21, 2012
Lucasfilm
Sep. 28, 2013
Lucasfilm
Feb. 02, 2012
UTV Software Communications Limited
Sep. 28, 2013
UTV Software Communications Limited
Nov. 18, 2011
Seven TV
Business Acquisition and Equity Method Investment [Line Items]                                        
Stock Issued During Period to Lucasfilm Shareholder, Shares                               37.1        
Cash paid for business acquisition                               $ 2,200,000,000   $ 377,000,000 $ 74,000,000  
Shares distributed to shareholders, stock price                               $ 50.00        
Estimated useful life of intangible assets 40 years                               40 years      
Redemption Of Investment Ownership Percentage                   10.00%                    
Equity method investment's purchase price of interest, aggregate                   200,000,000         3,000,000,000          
Equity Method Investment, Ownership Interest       32.00% 33.00% 29.00%         50.00% 42.10% 50.00% 42.10% 15.80%         49.00%
Equity Method Investment Investees Material Effects Of Transaction       174,000,000                                
Equity Method Investment, Summarized Financial Information, Liabilities and Equity 8,157,000,000 8,388,000,000 8,553,000,000       338,000,000   338,000,000                      
Debt Instrument Maturity Period       5 years                                
Equity Method Investment Material Effects Of Transaction 55,000,000 0 0   55,000,000                              
Other Commitment         257,000,000     750,000,000                        
Equity method investments, value         134,000,000             300,000,000   300,000,000           300,000,000
Borrowings assumed in business acquisition                                   300,000,000    
Undiluted ownership interest, percentage                                   93.00%    
Ownership interest immediately before acquisition date, percentage                                   50.00%    
Non-cash gain on currently held interests, pre tax                                   184,000,000    
Non-cash gain on currently held interests, after tax                                   116,000,000    
Previously held equity interest, fair value                                   405,000,000    
Incremental interest acquired                                     6.00%  
Ownership percentage                                     99.00%  
Goodwill accumulated impairments 29,000,000 29,000,000 29,000,000                                  
Business Acquisition, Cost of Acquired Entity, Purchase Price                               $ 4,100,000,000