Business Segments - Schedule of Identifiable Assets (Details) - USD ($) $ in Millions	Jun. 28, 2026	Dec. 28, 2025
Segment Reporting [Line Items]
Total assets	$ 5,738.9	$ 5,099.6
Corporate:
Segment Reporting [Line Items]
Deferred Taxes	33.4	33.5
Cash and cash equivalents and other	773.4	448.4
HPMC
Segment Reporting [Line Items]
Total assets	2,404.1	2,368.6
AA&S
Segment Reporting [Line Items]
Total assets	$ 2,528.0	$ 2,249.1

Amount of asset recognized for present right to economic benefit.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details