Fair Value Measurements - Narrative (Details) - USD ($)	3 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less accumulated impairment	$ 8,000,000
Technology intangible impairment charges	0	$ 0
Global Flexible Packaging Solutions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less accumulated impairment	1,000,000	4,000,000
Asset, Held-for-Sale, Not Part of Disposal Group		$ 11,000,000
Global Rigid Packaging Solutions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less accumulated impairment	7,000,000
Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent purchase consideration	18,000,000
FY23 Acquisitions \| Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent purchase consideration	6,000,000
Discma AG
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent purchase consideration	$ 12,000,000

Amount of assets held-for-sale that are not part of a disposal group.

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