Pension and Other Post Retirement Benefit Plans - Schedule of Reconciliation of Combined Funded Status of Plans and Recognized in Consolidated Balance Sheet (Details) - Pension Plan - USD ($) $ in Thousands	Sep. 26, 2025	Sep. 27, 2024	Sep. 29, 2023
U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net benefit obligation at the end of the year	$ 281,306	$ 296,746	$ 281,852
Fair value of plan assets at the end of the year	276,588	293,828	277,583
Underfunded amount recognized at the end of the year	4,718	2,918
Non-U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net benefit obligation at the end of the year	1,435,797	1,519,871	1,300,261
Fair value of plan assets at the end of the year	1,399,048	1,440,593	$ 1,243,025
Underfunded amount recognized at the end of the year	$ 36,749	$ 79,278