v3.26.1
Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Jun. 27, 2026
Jun. 28, 2025
Jun. 29, 2024
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]      
Net (loss) income $ (6,935.1) $ 25.9 $ (546.5)
Weighted average shares outstanding - basic (in shares) 74.6 69.0 67.3
Basic (loss) income per common share (in usd per share) $ (92.96) $ 0.38 $ (8.12)
Denominator:      
Effect of dilutive securities from stock-based benefit plans (in shares) 0.0 0.6 0.0
Weighted average shares outstanding - diluted (in shares) 74.6 69.6 67.3
Diluted (loss) income per common share (in usd per share) $ (92.96) $ 0.37 $ (8.12)
Common Stock      
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]      
Weighted average shares outstanding - basic (in shares) 73.7 69.0 67.3
Preferred stock      
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]      
Weighted average shares outstanding - basic (in shares) 0.9 0.0 0.0