Balance Sheet Information (Cash, Cash Equivalents, and Restricted Cash) (Details) - USD ($) $ in Millions	Apr. 02, 2021	Jul. 03, 2020	Apr. 03, 2020	Jun. 28, 2019
Investments, Debt and Equity Securities [Abstract]
Cash and cash equivalents	$ 1,212	$ 1,722	$ 1,612	$ 2,220
Restricted cash included in Other current assets	2	2	2	31
Total cash, cash equivalents and restricted cash presented in the Statements of Cash Flows	$ 1,214	$ 1,724	$ 1,614	$ 2,251

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant