Accumulated Other Comprehensive Loss - Rollforward (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2026	Mar. 28, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	$ 3,106.3	$ 2,934.8
Other comprehensive income before reclassifications:
Increase (decrease)	(26.5)	92.8
Income tax impact	(3.2)	5.3
Other comprehensive income (loss) before reclassifications, net of income taxes	(29.7)	98.1
Amounts reclassified from accumulated other comprehensive loss:
Decrease	(0.2)	(0.1)
Income tax impact	0.0	0.0
Amounts reclassified from accumulated other comprehensive loss, net of income taxes	(0.2)	(0.1)
Net current period other comprehensive income (loss), net of income taxes	(29.9)	98.0
Balance, end of period	3,079.5	3,036.1
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(113.2)	(371.1)
Amounts reclassified from accumulated other comprehensive loss:
Net current period other comprehensive income (loss), net of income taxes	(29.9)	98.0
Balance, end of period	(143.1)	(273.1)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(118.7)	(375.1)
Other comprehensive income before reclassifications:
Increase (decrease)	(26.5)	92.8
Income tax impact	(3.2)	5.3
Other comprehensive income (loss) before reclassifications, net of income taxes	(29.7)	98.1
Amounts reclassified from accumulated other comprehensive loss:
Decrease	0.0	0.0
Income tax impact	0.0	0.0
Amounts reclassified from accumulated other comprehensive loss, net of income taxes	0.0	0.0
Net current period other comprehensive income (loss), net of income taxes	(29.7)	98.1
Balance, end of period	(148.4)	(277.0)
Unrealized Pension Costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	5.5	4.0
Other comprehensive income before reclassifications:
Increase (decrease)	0.0	0.0
Income tax impact	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of income taxes	0.0	0.0
Amounts reclassified from accumulated other comprehensive loss:
Decrease	(0.2)	(0.1)
Income tax impact	0.0	0.0
Amounts reclassified from accumulated other comprehensive loss, net of income taxes	(0.2)	(0.1)
Net current period other comprehensive income (loss), net of income taxes	(0.2)	(0.1)
Balance, end of period	$ 5.3	$ 3.9