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Guarantees (Product Warranty) (Details) - USD ($)
$ in Millions
6 Months Ended
Dec. 31, 2021
Jan. 01, 2021
Guarantees [Abstract]    
Balance, beginning of period $ 136 $ 151
Warranties issued 43 37
Repairs and replacements (43) (42)
Changes in liability for pre-existing warranties, including expirations 8 (9)
Balance, end of period $ 144 $ 137