Annual report pursuant to Section 13 and 15(d)

The Company and Its Significant Accounting Policies Share-Based Compensation (Details)

v3.5.0.2
The Company and Its Significant Accounting Policies Share-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Sep. 25, 2016
Sep. 27, 2015
Sep. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Share-based compensation expense before income taxes $ 943 $ 1,026 $ 1,059
Related income tax benefit (190) (190) (203)
Share-based compensation expense, net of income taxes 753 836 856
Cost of revenues [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Share-based compensation expense before income taxes 40 42 49
Research and development [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Share-based compensation expense before income taxes 614 659 672
Selling, general and administrative [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
Share-based compensation expense before income taxes $ 289 $ 325 $ 338
Restricted Stock Units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]      
RSUs granted, weighted average grant date fair value $ 53.56 $ 68.77 $ 72.81
Annual pre-vesting forfeiture rate 4.00% 3.00% 3.00%