Benefits - Benefit obligations in excess of fair value of plan assets (Details) - USD ($) $ in Thousands		12 Months Ended
	May 30, 2023	Dec. 01, 2024	Nov. 26, 2023	Nov. 27, 2022
Change in plan assets [Roll Forward]
U.S. pension settlement loss	$ 19,000	$ 0	$ 19,000	$ 0
Amounts reclassified from accumulated other comprehensive loss		(26,700)	(7,200)	12,300
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent
Change in plan assets [Roll Forward]
Amounts reclassified from accumulated other comprehensive loss		21,000
Pension plans, defined benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year		769,400	882,600
Service cost		2,600	2,800	3,900
Interest cost		39,700	39,900	22,500
Plan participants' contribution		500	600
Actuarial loss (gain)		38,600	(38,200)
Net curtailment loss (gain)		(1,700)	0
Impact of foreign currency changes		(3,500)	4,500
Plan settlements		(1,800)	(59,100)
Net benefits paid		(64,300)	(63,700)
Benefit obligation at end of year		779,500	769,400	882,600
Change in plan assets [Roll Forward]
Fair value of plan assets at beginning of year		739,400	838,500
Actual return on plan assets		84,300	7,300
Employer contribution		15,300	12,200
Plan participants' contributions		500	600
Plan settlements		(1,800)	(59,100)
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan		(5,300)	0
Impact of foreign currency changes		(1,600)	3,600
Net benefits paid		(64,300)	(63,700)
Fair value of plan assets at end of year		766,500	739,400	838,500
Unfunded status at end of year		(13,000)	(30,000)
Other postretirement benefit plans, defined benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year		39,200	41,900
Service cost		0	0	0
Interest cost		2,000	2,000	900
Plan participants' contribution		3,700	3,500
Actuarial loss (gain)		500	1,000
Net curtailment loss (gain)		0	0
Impact of foreign currency changes		0	0
Plan settlements		0	0
Net benefits paid		(9,600)	(9,200)
Benefit obligation at end of year		35,800	39,200	41,900
Change in plan assets [Roll Forward]
Fair value of plan assets at beginning of year		0	0
Actual return on plan assets		0	0
Employer contribution		600	5,700
Plan participants' contributions		3,700	3,500
Plan settlements		0	0
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan		5,300	0
Impact of foreign currency changes		0	0
Net benefits paid		(9,600)	(9,200)
Fair value of plan assets at end of year		0	0	$ 0
Unfunded status at end of year		$ (35,800)	$ (39,200)