Employee Benefit Plans - Benefit obligations in excess of fair value of plan assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 28, 2021	Nov. 29, 2020	Nov. 24, 2019
Pension plans, defined benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	$ 1,264,629	$ 1,261,763
Service cost	4,398	4,026	$ 3,377
Interest cost	19,349	30,643	41,341
Plan participants' contribution	652	689
Plan combinations	2,845	0
Actuarial loss (gain)	(26,982)	87,443
Net curtailment loss (gain)	37	(1,009)
Impact of foreign currency changes	(5,958)	10,899
Plan settlements	0	(64,525)
Net benefits paid	(66,907)	(65,300)
Benefit obligation at end of year	1,192,063	1,264,629	1,261,763
Change in plan assets [Roll Forward]
Fair value of plan assets at beginning of year	1,153,291	1,091,162
Actual return on plan assets	33,478	161,856
Employer contribution	11,943	20,865
Plan participants' contributions	652	689
Plan settlements	0	(64,525)
Impact of foreign currency changes	(3,284)	8,544
Net benefits paid	(66,907)	(65,300)
Fair value of plan assets at end of year	1,129,173	1,153,291	1,091,162
Unfunded status at end of year	(62,890)	(111,338)
Other postretirement benefit plans, defined benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	67,361	72,135
Service cost	21	48	65
Interest cost	829	1,665	3,042
Plan participants' contribution	4,027	4,282
Plan combinations	0	0
Actuarial loss (gain)	(3,059)	1,531
Net curtailment loss (gain)	0	0
Impact of foreign currency changes	0	0
Plan settlements	0	0
Net benefits paid	(11,342)	(12,300)
Benefit obligation at end of year	57,837	67,361	72,135
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	7,315	8,018
Plan participants' contributions	4,027	4,282
Plan settlements	0	0
Impact of foreign currency changes	0	0
Net benefits paid	(11,342)	(12,300)
Fair value of plan assets at end of year	0	0	$ 0
Unfunded status at end of year	$ (57,837)	$ (67,361)