Leases (Supplement Cash Flow Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2023	Dec. 30, 2022	Dec. 31, 2021
Leases [Abstract]
Operating cash flows from operating leases	$ 31.0	$ 35.0	$ 35.9
Right-of-use assets obtained in exchange for Operating lease liabilities:	47.0	26.3	$ 49.5
Operating lease right-of-use assets	124.0	121.2
Other current liabilities	29.1	35.0
Operating lease liabilities	121.9	105.1
Total operating lease liabilities	$ 151.0	$ 140.1
Weighted-average discount rate	4.27%	3.30%
Weighted-average remaining lease term	7 years	6 years
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities