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Balance Sheet Information (Fair value and amortized cost of available-for-sale securities by contractual maturity) (Details) - USD ($) $ in Millions	Apr. 02, 2021	Jul. 03, 2020
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 550	$ 569
Unrealized Gain/(Loss)	0	0
Fair Value	550	569
Amortized Cost
Amortized cost, due in less than 1 year	532
Amortized cost, due in 1 to 5 years	10
Amortized cost, due in 6 to 10 years	0
Amortized cost, thereafter	8
Amortized Cost	550
Fair Value
Fair value, due in less than 1 year	532
Fair value, due in 1 to 5 years	10
Fair value, due in 6 to 10 years	0
Fair value, thereafter	8
Fair Value	550
Money market funds [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	531	495
Unrealized Gain/(Loss)	0	0
Fair Value	531	495
Time deposits and certificates of deposit [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	1	56
Unrealized Gain/(Loss)	0	0
Fair Value	1	56
Other Debt Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Available-for-sale, Amortized Cost		18
Unrealized Gain/(Loss)		0
Fair Value		18
Cash and cash equivalents [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	530	549
Other current assets [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	2	2
Other Assets [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value	$ 18	$ 18

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