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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Dec. 28, 2019
Dec. 29, 2018
Statement of Financial Position [Abstract]    
Allowances, accounts receivable $ 26.7 $ 26.6
Common stock, par value $ 1 $ 1
Common stock, shares authorized 320,000,000 320,000,000
Common stock, shares issued, including treasury shares 108,329,250 107,609,206
Treasury stock, shares 27,181,512 15,905,681