Restructuring and Other Charges (Additional Information) (Details) $ in Millions	1 Months Ended			3 Months Ended		9 Months Ended
	May 31, 2017 USD ($) employee	Aug. 31, 2016 USD ($) employee	Aug. 31, 2014 USD ($)	Apr. 29, 2017 USD ($)	Apr. 30, 2016 USD ($)	Apr. 29, 2017 USD ($)	Apr. 30, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges incurred during period				$ 70	$ 17	$ 614	$ 253
Credit to cost of sales						2	2
Restructuring charges						614	$ 255
FISCAL 2017 PLAN
Restructuring Cost and Reserve [Line Items]
Expected number of employees impacted by restructuring plan | employee		5,500
Expected restructuring charges		$ 700		$ 850		$ 850
FISCAL 2015 PLAN
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 756
Subsequent Event | FISCAL 2017 PLAN
Restructuring Cost and Reserve [Line Items]
Expected number of employees impacted by restructuring plan | employee	1,100
Expected restructuring charges	$ 150