Basis of Preparation - Narratives (Details) $ / shares in Units, $ in Millions	Mar. 31, 2026 center location $ / shares	Dec. 31, 2025 $ / shares	Sep. 30, 2025 USD ($)	Jul. 28, 2025 USD ($) $ / shares
New Accounting Pronouncements or Change in Accounting Principle
Number of locations (locations) \| location	63
Number of service centers (centers) \| center	50
Common stock, par value (usd per share) \| $ / shares	$ 0.01	$ 0.01		$ 0.01
Termination fees payable			$ 266
Termination fee net of reimbursement				$ 250
Reimbursable termination fee				$ 16
Proposed Merger with Baker Hughes Company \| Scenario, Plan
New Accounting Pronouncements or Change in Accounting Principle
Business Combination, Price Per Share \| $ / shares				$ 210.00
Flowserve
New Accounting Pronouncements or Change in Accounting Principle
Termination fee payments				$ 8
Baker Hughes \| Failure To Adopt By Chart Stockholders
New Accounting Pronouncements or Change in Accounting Principle
Termination fee payments				250
Baker Hughes \| Flowserve
New Accounting Pronouncements or Change in Accounting Principle
Termination fee payments				258
Baker Hughes \| Chart \| Failure To Obtain Antitrust of Foreign Investment Approval
New Accounting Pronouncements or Change in Accounting Principle
Termination fee payments				$ 500