Subsequent Event	9 Months Ended
Sep. 30, 2026
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On October 19, 2026, we announced proposed transactions whereby we entered into certain agreements relating to the creation of a partnership ("Silgan MCC") with an investment vehicle affiliated with funds managed by American Industrial Partners, LLC (“AIP”), our contribution of our Metal Containers segment and food and beverage flat cap closures business to Silgan MCC and the proposed acquisition by Silgan MCC of Trivium Packaging B.V., a Netherlands company (“Trivium”) for a cash payment to the sellers of approximately $327.5 million and the assumption of approximately $3.1 billion of debt obligations of Trivium. Trivium is a global supplier of metal packaging for the world’s leading brands. In connection with the formation and capitalization of Silgan MCC, we will receive a cash distribution of approximately $2.3 billion, which we intend to use to retire certain existing debt, and a 60% controlling ownership interest in Silgan MCC for our contribution to Silgan MCC. AIP will contribute approximately $1.0 billion of cash to Silgan MCC and receive a 40% ownership interest in Silgan MCC. The remaining Silgan MCC capitalization will be provided by fully-committed debt financing, secured by assets of Silgan MCC only, consisting of approximately $4.9 billion of new senior secured term loans and a new senior secured revolving loan facility of $1.0 billion, and the partnership will establish an independent balance sheet that will be fully consolidated into our financial statements. The proposed acquisition of Trivium is expected to close mid-2027 and is subject to required regulatory approvals, completion of applicable works council consultation processes and satisfaction of other customary closing conditions.

On October 19, 2026, we announced proposed transactions whereby we entered into certain agreements relating to the creation of a partnership ("Silgan MCC") with an investment vehicle affiliated with funds managed by American Industrial Partners, LLC (“AIP”), our contribution of our Metal Containers segment and food and beverage flat cap closures business to Silgan MCC and the proposed acquisition by Silgan MCC of Trivium Packaging B.V., a Netherlands company (“Trivium”) for a cash payment to the sellers of approximately $327.5 million and the assumption of approximately $3.1 billion of debt obligations of Trivium. Trivium is a global supplier of metal packaging for the world’s leading brands.

In connection with the formation and capitalization of Silgan MCC, we will receive a cash distribution of approximately $2.3 billion, which we intend to use to retire certain existing debt, and a 60% controlling ownership interest in Silgan MCC for our contribution to Silgan MCC. AIP will contribute approximately $1.0 billion of cash to Silgan MCC and receive a 40% ownership interest in Silgan MCC. The remaining Silgan MCC capitalization will be provided by fully-committed debt financing, secured by assets of Silgan MCC only, consisting of approximately $4.9 billion of new senior secured term loans and a new senior secured revolving loan facility of $1.0 billion, and the partnership will establish an independent balance sheet that will be fully consolidated into our financial statements.

The proposed acquisition of Trivium is expected to close mid-2027 and is subject to required regulatory approvals, completion of applicable works council consultation processes and satisfaction of other customary closing conditions.