Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements have been prepared from the unaudited accounting records of Hexcel pursuant to rules and regulations of the Securities and Exchange Commission (“SEC”) and in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Certain information and footnote disclosures normally included in financial statements have been omitted pursuant to rules and regulations of the SEC. In the opinion of management, the condensed consolidated financial statements include all normal recurring adjustments as well as any non-recurring adjustments necessary to present fairly the statement of financial position, results of operations, cash flows and statement of stockholders’ equity for the interim periods presented. The Condensed Consolidated Balance Sheet as of December 31, 2022 was derived from the audited 2022 consolidated balance sheet. Interim results are not necessarily indicative of results expected for any other interim period or for the full year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our 2022 Annual Report on Form 10-K.
Investments in Affiliated Companies	Investments in Affiliated Companies We have a 50% equity investment in Aerospace Composites Malaysia Sdn. Bhd. This investment is accounted for using the equity method of accounting.
Assets Held for Sale	Assets Held for Sale In November 2020, we closed our wind energy prepreg production facility in Windsor, Colorado and in 2022 we further reduced the carrying value of the Windsor facility by approximately $3 million. The plant assets to be sold have been recorded in “Assets held for sale” in the Consolidated Balance Sheets at both March 31, 2023 and December 31, 2022. The sale of these assets is expected to occur during 2023.

Disclosure of accounting policy for equity method of accounting for investments and other interests. Investment includes, but is not limited to, unconsolidated subsidiary, corporate joint venture, noncontrolling interest in real estate venture, limited partnership, and limited liability company. Information includes, but is not limited to, ownership percentage, reason equity method is or is not considered appropriate, and accounting policy election for distribution received.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 21D
-URI https://asc.fasb.org/extlink&oid=126954810&loc=SL94080555-108585

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