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Balance Sheet Information (Cash, Cash Equivalents, and Restricted Cash) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Jul. 02, 2021
Jan. 01, 2021
Jul. 03, 2020
Investments, Debt and Equity Securities [Abstract]        
Cash and cash equivalents $ 1,535 $ 1,209 $ 1,799 $ 1,722
Restricted cash included in Other current assets 2 2 2 2
Total cash, cash equivalents and restricted cash shown in the Statements of Cash Flows $ 1,537 $ 1,211 $ 1,801 $ 1,724