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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2021
Jan. 01, 2021
Dec. 31, 2021
Jan. 01, 2021
Income Tax Disclosure [Abstract]        
Income tax expense (benefit) $ 13 $ 11 $ 20 $ 9
Net discrete tax expense     (9) $ (11)
Unrecognized Tax Benefits $ 115   $ 115  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 25.00% 25.00% 25.00% 25.00%
Unrecognized tax benefits, period increase (decrease)     $ 7