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Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - SFr / shares
Mar. 26, 2022
Dec. 25, 2021
Statement of Financial Position [Abstract]    
Common shares, par value (in CHF dollars per share) SFr 0.10 SFr 0.10
Common shares, authorized 198,077,000 198,077,000
Common shares, issued 198,077,000 198,077,000
Common shares, outstanding 193,125,000 192,608,000