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Consolidated Condensed Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Mar. 31, 2018
Dec. 30, 2017
Apr. 01, 2017
Statement of Financial Position [Abstract]      
Accounts receivable allowance $ 33.6 $ 31.5 $ 39.3
Common stock, par value $ 1 $ 1 $ 1
Common stock, shares authorized 320,000,000 320,000,000 320,000,000
Common stock, shares issued (including shares in treasury) 106,825,575 106,405,449 105,735,062
Treasury shares 12,048,223 10,345,141 8,827,675