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Income Taxes (Schedule of Gross Unrecognized Tax Benefits) (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2017
Jul. 01, 2016
Jul. 03, 2015
Income Tax Disclosure [Abstract]      
Balance of unrecognized tax benefits at the beginning of the year $ 76 $ 89 $ 120
Gross increase for tax positions of prior years 2 12 12
Gross decrease for tax positions of prior years (7) (8) (4)
Gross increase for tax positions of current year 16 11 9
Gross decrease for tax positions of current year 0 0 0
Settlements 0 0 (45)
Lapse of statutes of limitation (13) (27) (3)
Non-U.S. exchange (gain)/loss 0 1 0
Balance of unrecognized tax benefits at the end of the year $ 74 $ 76 $ 89