Pension and Other Post Retirement Benefit Plans - Schedule of Change in Combined Fair Value of Plans' Assets (Details) - Pension Plan - USD ($) $ in Thousands	12 Months Ended
	Sep. 26, 2025	Sep. 27, 2024
U.S. Plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	$ 293,828	$ 277,583
Actual returns (losses) on plan assets	9,861	42,523
Employer contributions	93	92
Participants’ contributions	0	0
Gross benefits paid	(27,194)	(26,370)
Curtailments/settlements/plan amendments	0	0
Effect of exchange rate changes and other, net	0	0
Fair value of plan assets at the end of the year	276,588	293,828
Non-U.S. Plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the year	1,440,593	1,243,025
Actual returns (losses) on plan assets	(38,909)	111,948
Employer contributions	46,426	23,787
Participants’ contributions	9	91
Gross benefits paid	(93,539)	(77,447)
Curtailments/settlements/plan amendments	(1,214)	(32,246)
Effect of exchange rate changes and other, net	45,682	171,435
Fair value of plan assets at the end of the year	$ 1,399,048	$ 1,440,593