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Shareholders' Deficit - Stock-based Compensation (Details) - USD ($)
$ / shares in Units, shares in Millions
9 Months Ended
Mar. 27, 2019
Mar. 28, 2018
Stock-based Compensation [Line Items]    
Stock options granted 0.7 1.2
Weighted average exercise price per share $ 43.63 $ 31.28
Weighted average fair value per share $ 8.25 $ 4.46
Restricted share awards granted 0.3 0.5
Weighted average fair value per share $ 43.52 $ 32.02
Modification of Stock-based Compensation Award [Member] | Stock Options With a Performance Condition [Member]    
Stock-based Compensation [Line Items]    
Incremental compensation cost resulting from modification $ 0  
Modification of Stock-based Compensation Award [Member] | Fiscal 2018 [Member] | Stock Options With a Performance Condition [Member]    
Stock-based Compensation [Line Items]    
Stock options forfeited 0.2  
Modification of Stock-based Compensation Award [Member] | Fiscal 2019 [Member] | Stock Options With a Performance Condition [Member]    
Stock-based Compensation [Line Items]    
Stock options granted 0.4