Pension and Other Postretirement Plans (Actual Plan Asset Allocations) (Details) - Pension Plan [Member]	Dec. 03, 2016	Nov. 28, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Actual plan asset allocations	100.00%	100.00%
Equity Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Actual plan asset allocations	41.70%	40.30%
Debt Securities [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Actual plan asset allocations	57.90%	59.20%
Cash and equivalents [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Actual plan asset allocations	0.40%	0.50%