Employee Termination, Asset Impairment and Other Charges Closure of Foreign Manufacturing Facilities (Detail Textuals) - USD ($) $ in Millions		12 Months Ended
	Jul. 31, 2018	Jun. 29, 2018	Jun. 30, 2017	Jul. 01, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 198	$ 210	$ 299
Foreign Manufacturing Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges		56	10	$ 128
Employee Termination Benefits | Foreign Manufacturing Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring reserve		$ 56	$ 0
Scenario, Forecast | Foreign Manufacturing Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 160
Scenario, Forecast | Employee Termination Benefits | Foreign Manufacturing Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	85
Scenario, Forecast | Contract Termination and Other | Foreign Manufacturing Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 75