Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common stock, $1 par value	Capital in excess of par value	Retained earnings	Treasury stock	Accumulated other comprehensive loss
Beginning balance at Dec. 28, 2019	$ 1,204.0	$ 124.1	$ 874.0	$ 2,979.1	$ (2,425.1)	$ (348.1)
Increase (Decrease) in Stockholders' Equity
Net income	555.9			555.9
Other comprehensive income (loss), net of tax	(1.5)					(1.5)
Repurchase of 2,173,416, 925,425 and 792,997 shares for treasury for the years ended 2022, 2021 and 2020, respectively	(104.3)				(104.3)
Issuance of 223,676, 257,189 and 389,102 shares under stock-based compensation plans for the years ended 2022, 2021 and 2020, respectively	4.9		(11.9)	(3.4)	20.2
Contribution of 153,803, 123,015 and 188,229 shares to 401(k) plan for the years ended 2022, 2021 and 2020, respectively	22.7			14.5	8.2
Dividends of $2.93, $2.66 and $2.36 per share for the years ended 2022, 2021 and 2020, respectively	(196.8)			(196.8)
Ending balance at Jan. 02, 2021	1,484.9	124.1	862.1	3,349.3	(2,501.0)	(349.6)
Increase (Decrease) in Stockholders' Equity
Net income	740.1			740.1
Other comprehensive income (loss), net of tax	66.7					66.7
Repurchase of 2,173,416, 925,425 and 792,997 shares for treasury for the years ended 2022, 2021 and 2020, respectively	(180.9)				(180.9)
Issuance of 223,676, 257,189 and 389,102 shares under stock-based compensation plans for the years ended 2022, 2021 and 2020, respectively	9.6		0.2	(7.2)	16.6
Contribution of 153,803, 123,015 and 188,229 shares to 401(k) plan for the years ended 2022, 2021 and 2020, respectively	24.6			19.1	5.5
Dividends of $2.93, $2.66 and $2.36 per share for the years ended 2022, 2021 and 2020, respectively	(220.6)			(220.6)
Ending balance at Jan. 01, 2022	1,924.4	124.1	862.3	3,880.7	(2,659.8)	(282.9)
Increase (Decrease) in Stockholders' Equity
Net income	757.1			757.1
Other comprehensive income (loss), net of tax	(81.1)					(81.1)
Repurchase of 2,173,416, 925,425 and 792,997 shares for treasury for the years ended 2022, 2021 and 2020, respectively	(379.5)				(379.5)
Issuance of 223,676, 257,189 and 389,102 shares under stock-based compensation plans for the years ended 2022, 2021 and 2020, respectively	23.2		17.0	(4.4)	10.6
Contribution of 153,803, 123,015 and 188,229 shares to 401(k) plan for the years ended 2022, 2021 and 2020, respectively	27.0			20.1	6.9
Dividends of $2.93, $2.66 and $2.36 per share for the years ended 2022, 2021 and 2020, respectively	(238.9)			(238.9)
Ending balance at Dec. 31, 2022	$ 2,032.2	$ 124.1	$ 879.3	$ 4,414.6	$ (3,021.8)	$ (364.0)