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Document And Entity Information - USD ($)
 12 Months Ended
Sep. 27, 2025
Nov. 19, 2025
Mar. 28, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Sep. 27, 2025    
Document Transition Report false    
Entity File Number 1-05129    
Entity Registrant Name MOOG Inc.    
Entity Incorporation, State or Country Code NY    
Entity Tax Identification Number 16-0757636    
Entity Address, Address Line One 400 Jamison Road    
Entity Address, City or Town East Aurora,    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 14052-0018    
City Area Code 716    
Local Phone Number 652-2000    
Title of 12(g) Security None    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 5,360,000,000
Amendment Flag false    
Document Financial Statement Error Correction Flag true    
Document Financial Statement Restatement Recovery Analysis [Flag] true    
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE
Portions of Moog Inc.'s definitive Proxy Statement to be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates (the "2025 Proxy Statement") are incorporated by reference into Part III of this Form 10-K. 		   
Entity Central Index Key 0000067887    
Current Fiscal Year End Date --09-27    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Class A Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Class A common stock    
Trading Symbol MOG.A    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   28,428,416  
Class B Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Class B common stock    
Trading Symbol MOG.B    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   3,248,420