Unaudited Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Foreign currency translation:
Net translation (loss) gain on foreign operations, tax	$ 4.0	$ 0.2	$ 1.8	$ (0.8)
Gain (loss) on net investment hedges, tax	(3.7)	(0.1)	0.1	0.8
Cash flow hedges (interest rate derivatives):
(Loss) gain arising in the period, tax expense	(2.9)	(6.8)	(6.3)	(15.6)
Reclassification to net income, tax expense	2.2	(0.7)	3.8	(3.5)
Post-retirement benefits:
Reclassification of prior year actuarial movements to net income, net of tax benefit	$ 0.3	$ 0.1	$ 0.7	$ 0.2