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Pensions and Other Post-Retirement Benefit Plans - Obligations and Funded Status (Details) - USD ($)
$ in Millions
Oct. 01, 2021
Jul. 02, 2021
Retirement Benefits [Abstract]    
Benefit obligation at end of period $ 359 $ 359
Fair value of plan assets at end of period 229 227
Unfunded status $ 130 $ 132