Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities (Details)

v3.10.0.1
Marketable Securities (Details) - USD ($)
$ in Millions
Dec. 30, 2018
Sep. 30, 2018
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current $ 108 $ 144
Available-for-sale - Noncurrent 35 35
Marketable securities - Current 249 311
Marketable securities - Noncurrent 35 35
Corporate bonds and notes [Member]    
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current 108 144
Available-for-sale - Noncurrent 0 0
Auction rate securities [Member]    
Schedule of Marketable Securities [Line Items]    
Available-for-sale - Current 0 0
Available-for-sale - Noncurrent 35 35
Equity securities [Member]    
Schedule of Marketable Securities [Line Items]    
Marketable securities - Current 141 167
Marketable securities - Noncurrent $ 0 $ 0