Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Accumulated Other Comprehensive Income (Details)

v3.8.0.1
Stockholders' Equity Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Mar. 25, 2018
Mar. 26, 2017
Mar. 25, 2018
Mar. 26, 2017
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     $ 384  
Balance at end of period $ 545   545  
Investment and other income, net 96 $ 235 211 $ 417
Foreign Currency Translation Adjustment [Member]        
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     147  
Other comprehensive income (loss) before reclassifications     173  
Reclassifications from accumulated other comprehensive income     0  
Other comprehensive income (loss)     173  
Balance at end of period 320   320  
Noncredit Other-than-Temporary Impairment Losses and Subsequent Changes in Fair Value for Certain Available-for-Sale Debt Securities [Member]        
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     23  
Other comprehensive income (loss) before reclassifications     0  
Reclassifications from accumulated other comprehensive income     1  
Other comprehensive income (loss)     1  
Balance at end of period 24   24  
Net Unrealized Gain (Loss) on Other Available-for-Sale Securities [Member]        
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     218  
Other comprehensive income (loss) before reclassifications     (1)  
Reclassifications from accumulated other comprehensive income     (9)  
Other comprehensive income (loss)     (10)  
Balance at end of period 208   208  
Net Unrealized (Loss) Gain on Derivative Instruments [Member]        
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     (8)  
Other comprehensive income (loss) before reclassifications     (6)  
Reclassifications from accumulated other comprehensive income     3  
Other comprehensive income (loss)     (3)  
Balance at end of period (11)   (11)  
Other Gains [Member]        
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     4  
Other comprehensive income (loss) before reclassifications     0  
Reclassifications from accumulated other comprehensive income     0  
Other comprehensive income (loss)     0  
Balance at end of period 4   4  
Total Accumulated Other Comprehensive Income [Member]        
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Balance at beginning of period     384  
Other comprehensive income (loss) before reclassifications     166  
Reclassifications from accumulated other comprehensive income     (5)  
Other comprehensive income (loss)     161  
Balance at end of period $ 545   $ 545  
Reclassification out of Accumulated Other Comprehensive Income [Member]        
Accumulated Other Comprehensive Income Attributable to Parent, Net of Tax [Roll Forward]        
Investment and other income, net   $ 35   $ 48