Commitments, Contingencies and Related Parties - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 28, 2018	Dec. 28, 2018	Jun. 29, 2018
Related Party Transactions [Abstract]
Accounts payable to related parties	$ 310	$ 310	$ 259
Investment funding commitments	50.00%	50.00%
Overhead incurred	$ 49
Western Digital Corp \| Minimum
Related Party Transactions [Abstract]
Investment funding commitments	49.90%	49.90%
Western Digital Corp \| Maximum
Related Party Transactions [Abstract]
Investment funding commitments	50.00%	50.00%
Equity Method Investee
Related Party Transactions [Abstract]
Payments for equity method investments	$ (1,120)	$ (1,860)
Accounts payable to related parties	$ 310	$ 310	$ 259
Unis Venture
Related Party Transactions [Abstract]
Equity method investment, ownership percentage	49.00%	49.00%
Unissoft (Wuxi) Group Co Ltd. \| Unis Venture
Related Party Transactions [Abstract]
Partner's ownership in venture business	51.00%	51.00%

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Costs Associated With Underutilized Capacity As A Result Of A Temporary Abnormal Reduction In Production

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Percent of commitment by the Company to fund a venture's investment in situations where the venture's sales are insufficient to cover the investments.

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Partner's ownership in venture business.

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