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Equity (Schedule of Share Repurchases) (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2021
Jan. 01, 2021
Dec. 31, 2021
Jan. 01, 2021
Dollar Value [Abstract]        
Repurchases of ordinary shares (in shares)     10  
Tax withholding related to vesting of equity awards (in shares)     1  
Repurchases of ordinary shares and tax withholding related to vesting of equity awards (in shares)     11  
Repurchases of ordinary shares (1) $ 480 $ 1,000 $ 905 $ 1,068
Tax withholding related to vesting of equity awards $ 2 $ 1 45 $ 32
Repurchases of ordinary shares and tax withholding related to vesting of equity awards     $ 950