Commitments and Contingent Liabilities (Details) € in Millions, $ in Millions	1 Months Ended
	Jul. 31, 2022 USD ($)	Sep. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Dec. 29, 2023 EUR (€)	Mar. 31, 2017 USD ($)
Violation of Articles 101 of the Treaty of the French Commercial Code by FCA
Commitments and Contingent Liabilities [Line Items]
Assessed penalty | €				€ 4
Disallowance, Input Tax Credit | Brazil
Commitments and Contingent Liabilities [Line Items]
Assessed penalty			$ 42
CCK vs. FCO
Commitments and Contingent Liabilities [Line Items]
Fine amount	$ 8
PRP Sites
Commitments and Contingent Liabilities [Line Items]
Estimated future remediation costs		$ 12
Non-PRP Sites
Commitments and Contingent Liabilities [Line Items]
Estimated future remediation costs		$ 9
U.S. Customs and Border Protection (CBP) | Penalty Notification Alleging Misclassification of Importation of Certain Goods into U.S. During 2004-2009
Commitments and Contingent Liabilities [Line Items]
Assessed penalty					$ 18