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Loss Per Share - Narrative (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
Dec. 26, 2021
Dec. 27, 2020
Dec. 26, 2021
Dec. 27, 2020
Earnings Per Share [Abstract]        
Anti-dilutive potential common shares excluded from diluted earnings per share calculation (shares) 3.1 3.5 3.3 3.9