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Pensions and Other Post-retirement Benefit Plans Obligations and Funded Status (Details) - Japanese Plan - USD ($)
$ in Millions
Dec. 29, 2017
Jun. 30, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Benefit obligations $ 249 $ 249
Fair value of plan assets 192 189
Unfunded status $ 57 $ 60