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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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