Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation Share-Based Compensation (Details)

v3.8.0.1
Basis of Presentation Share-Based Compensation (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Mar. 25, 2018
Mar. 26, 2017
Mar. 25, 2018
Mar. 26, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Share-based compensation expense before income taxes $ 222 $ 246 $ 470 $ 485
Related income tax benefit (29) (36) (77) (84)
Share-based compensation expense, net of income taxes 193 210 393 401
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Unrecognized compensation costs related to non-vested restricted stock units $ 1,300   $ 1,300  
Weighted-average period over which unrecognized compensation expense related to nonvested restricted stock units is expected to be recognized     1 year 11 months  
RSUs outstanding 28.4   28.4  
Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Stock options outstanding 7.8   7.8  
Cost of revenues [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Share-based compensation expense before income taxes $ 10 10 $ 21 20
Research and development [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Share-based compensation expense before income taxes 151 155 307 308
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 $ 61 $ 81 $ 142 $ 157