Employee Benefit Plans - benefit obligations in excess of fair value of plan assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 24, 2013		Nov. 25, 2012		Nov. 27, 2011
Pension plans, defined benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	$ 1,388,650		$ 1,203,677
Service cost	8,707		8,952		10,241
Interest cost	51,984		57,635		60,314
Plan participants' contribution	771		884
Actuarial loss (gain)	(114,441)	[1]	184,183	[1]
Net curtailment gain	(341)		(2,379)
Impact of foreign currency changes	1,219		1,103
Plan settlements	(7,909)		(867)
Special termination benefits	74		159
Net benefits paid	(94,915)	[2]	(64,697)	[2]
Benefit obligation at end of year	1,233,799		1,388,650		1,203,677
Change in plan assets [Roll Forward]
Fair value of plan assets at beginning of year	894,362		771,914
Actual return on plan assets	75,683	[3]	125,430	[3]
Employer contribution	35,064		60,096
Plan participants' contributions	(771)		(884)
Plan settlements	(7,909)		(867)
Impact of foreign currency changes	(23)		1,602
Benefits paid	(94,915)	[2]	(64,697)	[2]
Fair value of plan assets at end of year	903,033		894,362		771,914
Unfunded status at end of year	(330,766)		(494,288)
Other postretirement benefit plans, defined benefit [Member]
Change in benefit obligation [Roll Forward]
Benefit obligation at beginning of year	155,864		156,060
Service cost	376		397		478
Interest cost	4,957		6,634		7,629
Plan participants' contribution	5,242		5,531
Actuarial loss (gain)	(10,626)	[1]	10,408	[1]
Net curtailment gain	0		0
Impact of foreign currency changes	0		0
Plan settlements	0		0
Special termination benefits	0		0
Net benefits paid	(20,218)	[2]	(23,166)	[2]
Benefit obligation at end of year	135,595		155,864		156,060
Change in plan assets [Roll Forward]
Fair value of plan assets at beginning of year	0		0
Actual return on plan assets	0	[3]	0	[3]
Employer contribution	14,976		17,635
Plan participants' contributions	(5,242)		(5,531)
Plan settlements	0		0
Impact of foreign currency changes	0		0
Benefits paid	(20,218)	[2]	(23,166)	[2]
Fair value of plan assets at end of year	0		0		0
Unfunded status at end of year	$ (135,595)		$ (155,864)

[1] Actuarial gains in 2013 and losses in 2012 in the Company's pension benefit plans resulted from changes in discount rate assumptions, primarily for the Company's U.S. plans. Changes in financial markets during 2013 and 2012, including an increase and decrease, respectively, in corporate bond yield indices, resulted in a decrease and increase in benefit obligations, respectively.

[2] The increase in pension benefits paid in 2013 was primarily due the voluntary cash out program offered to vested, terminated U.S. pension plan participants in the first half of 2013. Pension plan assets were utilized to settle pension obligations for deferred participants that elected to participate in the program.

[3] The decrease in return on plan assets in 2013 was primarily due to the increase in interest rates which resulted in lower returns on fixed income securities.