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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 02, 2016
Jun. 27, 2015
Jul. 02, 2016
Jun. 27, 2015
Oct. 03, 2015
Income Tax Disclosure [Abstract]          
Effective tax rate for continuing operations 31.80% 33.60% 33.20% 32.80%  
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations 1.10%   1.40% 2.30%  
Unrecognized tax benefits $ 301   $ 301   $ 306
Unrecognized tax benefits, reductions that could result from tax audit resolutions $ 34   $ 34