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Employee Retirement Plans Summary of the Plans' Net Periodic Pension Cost, Benefit Obligations, Funded Status, and Net Balance Sheet Position (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Jan. 01, 2022 | Jan. 02, 2021
Net Periodic Pension Cost: |  |  |
Curtailment loss | $ 0 | $ 0 | $ (14,682)
Amounts recognized in balance sheet at year end: |  |  |
Accrued pension benefits | (14,948) | (219,680) |
Non US Plans |  |  |
Net Periodic Pension Cost: |  |  |
Service cost | 0 | 773 |
Interest cost | 25,032 | 17,340 |
Expected return on assets | (74,581) | (78,956) |
Amortization of net loss | (3,671) | (12,741) |
Amortization of prior service cost | 2,589 | 2,879 |
Defined Benefit Plan, Net Periodic Benefit Cost | (43,289) | (45,223) |
Change in Benefit Obligation: |  |  |
Benefit obligation – beginning of year | 1,544,147 | 1,744,574 |
Service cost | 0 | 773 |
Interest cost | 25,032 | 17,340 |
Member contributions | 0 | 81 |
Actuarial gain | (409,462) | (135,475) |
Net benefit payments | (59,682) | (65,138) |
Exchange effect | (153,882) | (18,008) |
Benefit obligation – end of year | 946,153 | 1,544,147 | 1,744,574
Change in Plan Assets: |  |  |
Plan assets at fair value – beginning of year | 1,342,601 | 1,296,516 |
Company contributions | 5,442 | 4,890 |
Investment (loss) gain | (207,270) | 123,708 |
Member contributions | 0 | 81 |
Benefit payments and plan expenses | (59,682) | (65,138) |
Exchange effect | (137,334) | (17,456) |
Plan assets at fair value – end of year | 943,757 | 1,342,601 | 1,296,516
Funded Status: |  |  |
Unfunded benefit obligation | (2,396) | (201,546) |
Amounts recognized in balance sheet at year end: |  |  |
Accrued pension benefits | (2,396) | (201,546) |
Pre-tax components in accumulated other comprehensive income at period end: |  |  |
Net actuarial loss | 121,292 | 281,745 |
Current year actuarial gain | (148,515) | (181,518) |
Actuarial loss recognized | (4,272) | (12,832) |
Prior service cost recognized | (7,666) | (3,457) |
Total amount recognized | 160,453 | 197,807 |
Accumulated Benefit Obligation | $ 946,136 | $ 1,544,117 |
Salary growth rate | 0.80% | 0.80% |
Assumed discount rate | 4.80% | 1.90% |
Expected return on assets | 6.20% | 6.20% |
USPlans |  |  |
Net Periodic Pension Cost: |  |  |
Service cost | $ 0 | $ 0 |
Interest cost | 923 | 841 |
Expected return on assets | (1,073) | (1,029) |
Amortization of net loss | (758) | (1,118) |
Amortization of prior service cost | 0 | 0 |
Defined Benefit Plan, Net Periodic Benefit Cost | 608 | 930 |
Change in Benefit Obligation: |  |  |
Benefit obligation – beginning of year | 36,423 | 38,897 |
Service cost | 0 | 0 |
Interest cost | 923 | 841 |
Member contributions | 0 | 0 |
Actuarial gain | (8,060) | (1,617) |
Net benefit payments | (1,736) | (1,698) |
Exchange effect | 0 | 0 |
Benefit obligation – end of year | 27,550 | 36,423 | 38,897
Change in Plan Assets: |  |  |
Plan assets at fair value – beginning of year | 18,289 | 17,455 |
Company contributions | 1,173 | 1,233 |
Investment (loss) gain | (2,728) | 1,299 |
Member contributions | 0 | 0 |
Benefit payments and plan expenses | (1,736) | (1,698) |
Exchange effect | 0 | 0 |
Plan assets at fair value – end of year | 14,998 | 18,289 | $ 17,455
Funded Status: |  |  |
Unfunded benefit obligation | (12,552) | (18,134) |
Amounts recognized in balance sheet at year end: |  |  |
Accrued pension benefits | (12,552) | (18,134) |
Pre-tax components in accumulated other comprehensive income at period end: |  |  |
Net actuarial loss | 2,402 | 7,419 |
Current year actuarial gain | (4,259) | (1,887) |
Actuarial loss recognized | (758) | (1,118) |
Prior service cost recognized | 0 | 0 |
Total amount recognized | 5,017 | 3,005 |
Accumulated Benefit Obligation | $ 27,550 | $ 36,423 |
Assumed discount rate | 4.90% | 2.60% |
Expected return on assets | 6.00% | 6.00% |

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