Supplemental Financial Information (Supplemental Cash Flow) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	May 05, 2019	May 06, 2018	May 05, 2019	May 06, 2018	Nov. 04, 2018
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest	$ 189	$ 1	$ 612	$ 233
Cash paid for income taxes	$ 425	$ 87	520	$ 196
Capital expenditures incurred but not yet paid			$ 35		$ 22