Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities (Details)

v3.7.0.1
Marketable Securities (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 25, 2017
Sep. 25, 2016
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current $ 5,749 $ 12,702
Available-for-sale - Noncurrent 16,389 13,702
Total marketable securities - Current 5,954 12,702
Total marketable securities - Noncurrent 16,889 13,702
U.S. Treasury securities and government-related securities [Member]    
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current 2,738 1,116
Available-for-sale - Noncurrent 101 1,099
Corporate bonds and notes [Member]    
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current 2,769 10,159
Available-for-sale - Noncurrent 15,053 8,584
Mortgage- and asset-backed and auction rate securities [Member]    
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current 104 1,363
Available-for-sale - Noncurrent 894 534
Equity and preferred securities and equity funds [Member]    
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current 32 64
Available-for-sale - Noncurrent 0 1,682
Debt funds [Member]    
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current 106 0
Available-for-sale - Noncurrent 341 1,803
Bank Time Deposits [Member]    
Schedule of Marketable Securities [Line Items]    
Other Marketable Securities, Noncurrent 500 0
Other Marketable Securities, Current 205 $ 0
Time deposits, Total $ 705  
Minimum [Member]    
Schedule of Marketable Securities [Line Items]    
Maturity of Time Deposits 91 days  
Maximum [Member]    
Schedule of Marketable Securities [Line Items]    
Maturity of Time Deposits 181 days