Note 10 - Pension and Postretirement Benefits - Asset Allocation (Details)		Dec. 03, 2022	Nov. 27, 2021
Equity Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		55.00%
Fixed Income Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocation		45.00%
Fixed Income Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		45.00%
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		100.00%
Percentage of Plan Assets at Year End		100.00%	100.00%
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation		100.00%
Percentage of Plan Assets at Year End		100.00%	100.00%
Pension Plan [Member] | Equity Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		55.00%
Percentage of Plan Assets at Year End		53.10%	57.70%
Pension Plan [Member] | Equity Funds [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation		24.80%
Percentage of Plan Assets at Year End		25.50%	21.30%
Pension Plan [Member] | Fixed Income Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		45.00%
Percentage of Plan Assets at Year End		45.80%	40.10%
Pension Plan [Member] | Fixed Income Funds [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation		75.20%
Percentage of Plan Assets at Year End		70.00%	67.00%
Pension Plan [Member] | Insurance [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		0.00%
Percentage of Plan Assets at Year End		0.10%	0.00%
Pension Plan [Member] | Insurance [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation		0.00%
Percentage of Plan Assets at Year End		0.00%	0.00%
Pension Plan [Member] | Cash [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation	[1]	0.00%
Percentage of Plan Assets at Year End	[1]	1.00%	2.20%
Pension Plan [Member] | Cash [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation	[1]	0.00%
Percentage of Plan Assets at Year End	[1]	4.50%	11.70%
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation		100.00%
Percentage of Plan Assets at Year End		100.00%	100.00%
Other Postretirement Benefits Plan [Member] | Equity Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocation		0.00%
Percentage of Plan Assets at Year End		0.00%	0.00%
Other Postretirement Benefits Plan [Member] | Fixed Income Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocation		0.00%
Percentage of Plan Assets at Year End		0.00%	0.00%
Other Postretirement Benefits Plan [Member] | Insurance [Member]
Defined Benefit Plan, Target Plan Asset Allocation		100.00%
Percentage of Plan Assets at Year End		98.90%	99.80%
Other Postretirement Benefits Plan [Member] | Cash [Member]
Defined Benefit Plan, Target Plan Asset Allocation	[1]	0.00%
Percentage of Plan Assets at Year End	[1]	1.10%	0.20%

[1] Negative cash for 2021 represents unsettled pending trades within an investment that are classified in cash and cash equivalents until settled.