Acquisitions and Divestitures - Narrative (Details) - USD ($) $ in Millions			3 Months Ended
	Apr. 06, 2026	Feb. 06, 2026	Mar. 31, 2026	Mar. 31, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acquisitions, net of cash acquired			$ 118	$ 0
Disposed by Sale | Disk Forging Facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Divestiture, consideration			230
Proceeds from the sales of businesses			225
Gain from disposal of business			93
Net assets			92
Reduction in goodwill from sale of business			$ 41
Brunner
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acquisitions, net of cash acquired		$ 120
Cash acquired		$ 2
CAM | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash purchase price	$ 1,800