Fair Value Measurements and Investments - Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Jan. 02, 2026	Jun. 27, 2025
Assets:
Retained interest in Sandisk	$ 2,068	$ 354
Total assets at fair value	2,214	649
Liabilities:
Total liabilities at fair value	7	4
Foreign exchange contracts
Liabilities:
Foreign exchange contracts	7	4
Retained interest in Sandisk
Assets:
Retained interest in Sandisk	2,068	354
Cash equivalents - Money market funds
Assets:
Cash equivalents - Money market funds	133	285
Foreign exchange contracts
Assets:
Foreign exchange contracts	13	10
Level 1
Assets:
Total assets at fair value	2,201	639
Liabilities:
Total liabilities at fair value	0	0
Level 1 | Foreign exchange contracts
Liabilities:
Foreign exchange contracts	0	0
Level 1 | Retained interest in Sandisk
Assets:
Retained interest in Sandisk	2,068	354
Level 1 | Cash equivalents - Money market funds
Assets:
Cash equivalents - Money market funds	133	285
Level 1 | Foreign exchange contracts
Assets:
Foreign exchange contracts	0	0
Level 2
Assets:
Total assets at fair value	13	10
Liabilities:
Total liabilities at fair value	7	4
Level 2 | Foreign exchange contracts
Liabilities:
Foreign exchange contracts	7	4
Level 2 | Retained interest in Sandisk
Assets:
Retained interest in Sandisk	0	0
Level 2 | Cash equivalents - Money market funds
Assets:
Cash equivalents - Money market funds	0	0
Level 2 | Foreign exchange contracts
Assets:
Foreign exchange contracts	13	10
Level 3
Assets:
Total assets at fair value	0	0
Liabilities:
Total liabilities at fair value	0	0
Level 3 | Foreign exchange contracts
Liabilities:
Foreign exchange contracts	0	0
Level 3 | Retained interest in Sandisk
Assets:
Retained interest in Sandisk	0	0
Level 3 | Cash equivalents - Money market funds
Assets:
Cash equivalents - Money market funds	0	0
Level 3 | Foreign exchange contracts
Assets:
Foreign exchange contracts	$ 0	$ 0