Condensed Consolidated Statements of Shareholders' Equity Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock, Common
Balance, at Beginning of the Period at Dec. 31, 2022	$ 2,042.3	$ 76.9	$ 391.3	$ 3,288.5	$ (29.5)	$ (1,684.9)
Net Earnings (Loss)	112.3	0.0	0.0	112.3	0.0	0.0
Other Comprehensive Income	3.6	0.0	0.0	0.0	3.6	0.0
Dividends	28.5	0.0	0.0	28.5	0.0	0.0
Compensation Plans and Other	(6.8)	0.0	(15.3)	0.0	0.0	(8.5)
Common Stock Repurchases	(60.4)	0.0	0.0	0.0	0.0	(60.4)
Balance, at End of Period at Apr. 01, 2023	$ 2,062.5	76.9	376.0	3,372.3	(25.9)	(1,736.8)
Cash Dividends Declared Per Common Share (in Dollars per Share)	$ 0.40
Balance, at Beginning of the Period at Dec. 31, 2023	$ 2,087.4	76.9	392.0	3,596.9	(25.7)	(1,952.7)
Net Earnings (Loss)	68.0	0.0	0.0	68.0	0.0	0.0
Other Comprehensive Income	(10.5)	0.0	0.0	0.0	(10.5)	0.0
Dividends	28.6	0.0	0.0	28.6	0.0	0.0
Compensation Plans and Other	(2.6)	0.0	(8.6)	0.0	0.0	(6.0)
Common Stock Repurchases	(64.1)	0.0	0.0	0.0	0.0	(64.1)
Balance, at End of Period at Mar. 30, 2024	$ 2,049.6	$ 76.9	$ 383.4	$ 3,636.3	$ (36.2)	$ (2,010.8)