v3.25.2

Cover	Jul. 24, 2025
Cover [Abstract]
Document Type	8-K
Document Period End Date	Jul. 24, 2025
Entity Registrant Name	GARRETT MOTION INC.
Entity Incorporation, State or Country Code	DE
Entity File Number	1-38636
Entity Tax Identification Number	82-4873189
Entity Address, Country	CH
Entity Address, City or Town	Rolle
Entity Address, City or Town	La Pièce 16
Entity Address, Postal Zip Code	1180
City Area Code	734
Local Phone Number	392 5500
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Entity Emerging Growth Company	false
Amendment Flag	false
Entity Central Index Key	0001735707
Entity Addresses [Line Items]
Entity Address, City or Town	Rolle
Entity Address, City or Town	La Pièce 16
Entity Address, Postal Zip Code	1180
Entity Address, Country	CH
Other Address
Cover [Abstract]
Entity Address, City or Town	Plymouth
Entity Address, City or Town	47548 Halyard Drive
Entity Address, Postal Zip Code	48170
Entity Address, State or Province	MI
Entity Addresses [Line Items]
Entity Address, City or Town	Plymouth
Entity Address, City or Town	47548 Halyard Drive
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48170

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

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Garrett Motion Inc. 8-K