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Loss Per Share - Narrative (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
Dec. 29, 2019
Dec. 30, 2018
Dec. 29, 2019
Dec. 30, 2018
Common Stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive potential common shares excluded from diluted earnings per share calculation (shares) 5.2 6.4 5.5 6.6