Pension and Other Postretirement Benefits - Assumptions (Details) |
9 Months Ended | |
|---|---|---|
Aug. 27, 2016 |
Aug. 29, 2015 |
|
| Qualified Pension Plans [Member] | ||
| Weighted-average assumptions used to determine benefit obligation: | ||
| Discount rate | 3.99% | 3.75% |
| Rate of compensation increase | 4.00% | 4.00% |
| Weighted-average assumptions used to determine net periodic benefit cost: | ||
| Discount rate - interest cost | 3.27% | 3.75% |
| Discount rate - service cost | 4.16% | 3.75% |
| Rate of compensation increase | 4.00% | 4.00% |
| Long-term rate of return on plan assets | 6.50% | 7.00% |
| Nonqualified Pension Plans [Member] | ||
| Weighted-average assumptions used to determine benefit obligation: | ||
| Discount rate | 3.35% | 3.00% |
| Rate of compensation increase | 4.00% | 4.00% |
| Weighted-average assumptions used to determine net periodic benefit cost: | ||
| Discount rate - interest cost | 2.57% | 3.00% |
| Discount rate - service cost | 2.49% | 3.00% |
| Rate of compensation increase | 4.00% | 4.00% |