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Employee Benefit Plans (Tables) | 12 Months Ended
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Nov. 29, 2020
Retirement Benefits [Abstract] |
Schedule of benefit obligations in excess of fair value of plan assets | The following tables summarize activity of the Company's defined benefit pension plans and postretirement benefit plans:
| Pension Benefits |  | Postretirement Benefits
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Dollars in thousands)
Change in benefit obligation: |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 1,261,763 |  |  | $ | 1,136,720 |  |  | $ | 72,135 |  |  | $ | 82,907 |
Service cost | 4,026 |  |  | 3,377 |  |  | 48 |  |  | 65 |
Interest cost | 30,643 |  |  | 41,341 |  |  | 1,665 |  |  | 3,042 |
Plan participants' contribution | 689 |  |  | 665 |  |  | 4,282 |  |  | 4,256 |
Actuarial loss (gain)(1) | 87,443 |  |  | 146,562 |  |  | 1,531 |  |  | (2,903) |
Net curtailment loss | (1,009) |  |  | 64 |  |  | — |  |  | — |
Impact of foreign currency changes | 10,899 |  |  | (2,210) |  |  | — |  |  | — |
Plan settlements(2) | (64,525) |  |  | (436) |  |  | — |  |  | — |
Net benefits paid | (65,300) |  |  | (64,320) |  |  | (12,300) |  |  | (15,232) |
Benefit obligation at end of year | $ | 1,264,629 |  |  | $ | 1,261,763 |  |  | $ | 67,361 |  |  | $ | 72,135 |
Change in plan assets: |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | 1,091,162 |  |  | 958,576 |  |  | — |  |  | — |
Actual return on plan assets | 161,856 |  |  | 182,309 |  |  | — |  |  | — |
Employer contribution | 20,865 |  |  | 15,062 |  |  | 8,018 |  |  | 10,976 |
Plan participants' contributions | 689 |  |  | 665 |  |  | 4,282 |  |  | 4,256 |
Plan settlements(2) | (64,525) |  |  | (436) |  |  | — |  |  | — |
Impact of foreign currency changes | 8,544 |  |  | (694) |  |  | — |  |  | — |
Net benefits paid | (65,300) |  |  | (64,320) |  |  | (12,300) |  |  | (15,232) |
Fair value of plan assets at end of year | 1,153,291 |  |  | 1,091,162 |  |  | — |  |  | — |
Unfunded status at end of year | $ | (111,338) |  |  | $ | (170,601) |  |  | $ | (67,361) |  |  | $ | (72,135) |
_____________ (1)Fiscal year 2020 and 2019 actuarial losses in the Company's pension benefit plans resulted from changes in discount rate assumptions. Changes in financial markets during 2019 including a decrease in corporate bond yield indices, resulted in an increase in benefit obligations. (2)The increase in pension plan settlements in fiscal year 2020 was primarily due to a voluntary lump-sum, cash-out program offered to vested, terminated U.S. pension plan participants in the last half of the fiscal year 2020. The extent of the funding from the cash-out program exceeded the settlement accounting threshold, and as such in fiscal year 2020, these activities have been categorized as settlements. Pension plan assets were utilized to settle pension obligations for deferred participants that elected to participate in the program.
Schedule of amounts recognized in balance sheet | Amounts recognized in the Company's consolidated balance sheets as of November 29, 2020 and November 24, 2019, consist of the following:
| Pension Benefits |  | Postretirement Benefits
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Dollars in thousands)
Unfunded status recognized on the balance sheet: |  |  |  |  |  |  |
Prepaid benefit cost | $ | 62,161 |  |  | $ | 27,704 |  |  | $ | — |  |  | $ | — |
Accrued benefit liability – current portion | (9,663) |  |  | (9,480) |  |  | (7,112) |  |  | (8,129) |
Accrued benefit liability – long-term portion | (163,836) |  |  | (188,825) |  |  | (60,249) |  |  | (64,006) |
| $ | (111,338) |  |  | $ | (170,601) |  |  | $ | (67,361) |  |  | $ | (72,135) |
Accumulated other comprehensive loss: |  |  |  |  |  |  |
Net actuarial loss | $ | (296,330) |  |  | $ | (358,484) |  |  | $ | (12,491) |  |  | $ | (11,284) |
Net prior service benefit | 259 |  |  | 291 |  |  | — |  |  | — |
| $ | (296,071) |  |  | $ | (358,193) |  |  | $ | (12,491) |  |  | $ | (11,284) |
Schedule of accumulated benefit obligations in excess of fair value of plan assets | Information for the Company's defined benefit plans with an accumulated or projected benefit obligation in excess of plan assets is as follows:
| Pension Benefits
| 2020 |  | 2019
| (Dollars in thousands)
Accumulated benefit obligations in excess of plan assets: |  |  |
Aggregate accumulated benefit obligation | $ | 168,390 |  |  | $ | 1,093,503 |
Aggregate fair value of plan assets | — |  |  | 903,556 |
Projected benefit obligations in excess of plan assets: |  |  |
Aggregate projected benefit obligation | $ | 222,055 |  |  | $ | 1,142,114 |
Aggregate fair value of plan assets | 48,578 |  |  | 943,810 |
Amounts in the table above decreased in fiscal year 2020 primarily due to the exclusion of the Company’s U.S. pension plans as compared to 2019, as the fair value of these pension plan assets in fiscal year 2020 increased resulting in those plans’ plan assets exceeding the benefit obligations.
Schedule of defined benefit plans disclosures | The components of the Company's net periodic benefit cost were as follows:
| Pension Benefits |  | Postretirement Benefits
| 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
| (Dollars in thousands)
Net periodic benefit cost: |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 4,026 |  |  | $ | 3,377 |  |  | $ | 3,602 |  |  | $ | 48 |  |  | $ | 65 |  |  | $ | 113 |
Interest cost | 30,643 |  |  | 41,341 |  |  | 36,070 |  |  | 1,665 |  |  | 3,042 |  |  | 2,718 |
Expected return on plan assets | (41,189) |  |  | (42,098) |  |  | (48,830) |  |  | — |  |  | — |  |  | — |
Amortization of prior service benefit | (62) |  |  | (61) |  |  | (65) |  |  | — |  |  | — |  |  | — |
Amortization of actuarial loss | 13,407 |  |  | 13,306 |  |  | 12,650 |  |  | 324 |  |  | 465 |  |  | 872 |
Curtailment loss | (650) |  |  | 13 |  |  | 38 |  |  | — |  |  | — |  |  | — |
Net settlement (gain) loss | 14,699 |  |  | (56) |  |  | (102) |  |  | — |  |  | — |  |  | — |
Net periodic benefit cost | 20,874 |  |  | 15,822 |  |  | 3,363 |  |  | 2,037 |  |  | 3,572 |  |  | 3,703 |
Changes in accumulated other comprehensive loss: |  |  |  |  |  |  |  |  |  |  |
Actuarial loss (gain) | (34,821) |  |  | 6,309 |  |  | 15,373 |  |  | 1,531 |  |  | (2,903) |  |  | (6,354) |
Amortization of prior service benefit | 62 |  |  | 61 |  |  | 65 |  |  | — |  |  | — |  |  | — |
Amortization of actuarial loss | (13,407) |  |  | (13,306) |  |  | (12,650) |  |  | (324) |  |  | (465) |  |  | (872) |
Curtailment gain | 742 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Net settlement gain (loss) | (14,699) |  |  | 56 |  |  | 102 |  |  | — |  |  | — |  |  | — |
Total recognized in accumulated other comprehensive loss | (62,123) |  |  | (6,880) |  |  | 2,890 |  |  | 1,207 |  |  | (3,368) |  |  | (7,226) |
Total recognized in net periodic benefit cost and accumulated other comprehensive loss | $ | (41,249) |  |  | $ | 8,942 |  |  | $ | 6,253 |  |  | $ | 3,244 |  |  | $ | 204 |  |  | $ | (3,523) |
Schedule of assumptions used | Assumptions used in accounting for the Company's benefit plans were as follows:
| Pension Benefits |  | Postretirement Benefits
| 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
Weighted-average assumptions used to determine net periodic benefit cost: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.8% |  | 4.1% |  | 3.4% |  | 2.8% |  | 4.2% |  | 3.4%
Expected long-term rate of return on plan assets | 3.8% |  | 4.6% |  | 5.4% |  |  |  |  |  |
Rate of compensation increase | 3.3% |  | 3.4% |  | 3.4% |  |  |  |  |  |
Weighted-average assumptions used to determine benefit obligations: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.1% |  | 2.8% |  | 4.1% |  | 2.0% |  | 2.8% |  | 4.2%
Rate of compensation increase | 3.3% |  | 3.3% |  | 3.4% |  |  |  |  |  |
Assumed health care cost trend rates were as follows: |  |  |  |  |  |  |  |  |  |  |
Health care trend rate assumed for next year |  |  |  |  |  |  | 5.4% |  | 5.7% |  | 5.9%
Rate trend to which the cost trend is assumed to decline |  |  |  |  |  |  | 4.4% |  | 4.4% |  | 4.4%
Year that rate reaches the ultimate trend rate |  |  |  |  |  |  | 2037 |  | 2037 |  | 2037
Fair values of pension plan assets | The fair value of the Company's pension plan assets by asset class are as follows:
| Year Ended November 29, 2020
Asset Class | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
| (Dollars in thousands)
Cash and cash equivalents | $ | 2,337 |  |  | $ | 2,337 |  |  | $ | — |  |  | $ | — |
Equity securities(1) |  |  |  |  |  |  |
U.S. large cap | 74,850 |  |  | — |  |  | 74,850 |  |  | — |
U.S. small cap | 14,343 |  |  | — |  |  | 14,343 |  |  | — |
International | 143,408 |  |  | — |  |  | 143,408 |  |  | — |
Fixed income securities(2) | 859,323 |  |  | — |  |  | 859,323 |  |  | — |
Other alternative investments |  |  |  |  |  |  |
Real estate(3) | 41,699 |  |  | — |  |  | 41,699 |  |  | — |
Private equity(4) | 228 |  |  | — |  |  | — |  |  | 228 |
Hedge fund(5) | 11,692 |  |  | — |  |  | 11,692 |  |  | — |
Other(6) | 5,411 |  |  | — |  |  | 5,411 |  |  | — |
Total investments at fair value | $ | 1,153,291 |  |  | $ | 2,337 |  |  | $ | 1,150,726 |  |  | $ | 228 |
| Year Ended November 24, 2019
Asset Class | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
| (Dollars in thousands)
Cash and cash equivalents | $ | 4,427 |  |  | $ | 4,427 |  |  | $ | — |  |  | $ | — |
Equity securities(1) |  |  |  |  |  |  |
U.S. large cap | 93,019 |  |  | — |  |  | 93,019 |  |  | — |
U.S. small cap | 13,307 |  |  | — |  |  | 13,307 |  |  | — |
International | 115,607 |  |  | — |  |  | 115,607 |  |  | — |
Fixed income securities(2) | 808,546 |  |  | — |  |  | 808,546 |  |  | — |
Other alternative investments |  |  |  |  |  |  |
Real estate(3) | 38,076 |  |  | — |  |  | 38,076 |  |  | — |
Private equity(4) | 289 |  |  | — |  |  | — |  |  | 289 |
Hedge fund(5) | 13,328 |  |  | — |  |  | 13,328 |  |  | — |
Other(6) | 4,564 |  |  | — |  |  | 4,564 |  |  | — |
Total investments at fair value | $ | 1,091,163 |  |  | $ | 4,427 |  |  | $ | 1,086,447 |  |  | $ | 289 |
_____________ (1)Primarily comprised of equity index funds that track various market indices. (2)Predominantly includes bond index funds that invest in long-term U.S. government and investment grade corporate bonds. (3)Primarily comprised of investments in U.S. Real Estate Investment Trusts. (4)Represents holdings in a diversified portfolio of private equity funds and direct investments in companies located primarily in North America. Fair values are determined by investment fund managers using primarily unobservable market data. (5)Primarily invested in a diversified portfolio of equities, bonds, alternatives and cash with a low tolerance for capital loss.(6)Primarily relates to accounts held and managed by a third-party insurance company for employee-participants in Belgium. Fair values are based on accumulated plan contributions plus a contractually-guaranteed return plus a share of any incremental investment fund profits.
Schedule of expected benefit payments | The Company's estimated future benefit payments to participants, which reflect expected future service, as appropriate are anticipated to be paid as follows:
| Pension Benefits |  | Postretirement Benefits |  | Total
| (Dollars in thousands)
2021 | $ | 73,162 |  |  | $ | 8,040 |  |  | $ | 81,202 |
2022 | 70,481 |  |  | 7,510 |  |  | 77,991 |
2023 | 69,181 |  |  | 7,020 |  |  | 76,201 |
2024 | 69,406 |  |  | 6,528 |  |  | 75,934 |
2025 | 69,690 |  |  | 5,994 |  |  | 75,684 |
2025-2028 | 340,445 |  |  | 22,464 |  |  | 362,909 |

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