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Significant Accounting Policies and Recent Accounting Standards (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 30, 2018
Mar. 31, 2017
Mar. 30, 2018
Mar. 31, 2017
Jun. 29, 2018
Jun. 30, 2017
Sep. 29, 2017
Business Combination, Separately Recognized Transactions [Line Items]              
Operating income $ 256 $ 275 $ 800 $ 798      
Intra-entity Transfers of Assets Other Than Inventory              
Business Combination, Separately Recognized Transactions [Line Items]              
Reduction in prepaid income taxes             $ 27
Increase in non-current deferred income taxes             $ 27
Improving the Presentation of Net Periodic Pension Cost and Postretirement Benefit Cost | Pro Forma              
Business Combination, Separately Recognized Transactions [Line Items]              
Operating income           $ 164  
Improving the Presentation of Net Periodic Pension Cost and Postretirement Benefit Cost | Scenario, Forecast              
Business Combination, Separately Recognized Transactions [Line Items]              
Operating income         $ 183