Inventories

6 Months Ended

Jun. 29, 2025

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories at June 29, 2025 and December 29, 2024 were as follows (in millions):

	June 29, 2025		December 29, 2024
Raw materials and supplies	$	247.0	$	206.4
Work-in-process	1,151.2		1,144.1
Finished goods	94.7		71.0
	1,492.9		1,421.5
Inventory valuation reserves	(80.3)		(68.5)
Total inventories, net	$	1,412.6	$	1,353.0

Inventories are stated at the lower of cost (first-in, first-out (FIFO) and average cost methods) or net realizable value.