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Pension and Retiree Medical Benefits - Periodic Benefit Cost (Tables)
3 Months Ended
Mar. 23, 2024
Retirement Benefits [Abstract]  
Schedule of Defined Benefit Plans Disclosures
The components of net periodic benefit cost/(income) for pension and retiree medical plans are as follows:
 12 Weeks Ended
 PensionRetiree Medical
 U.S.International 
 3/23/20243/25/20233/23/20243/25/20233/23/20243/25/2023
Service cost$80 $76 $9 $$7 $
Other pension and retiree medical benefits income:
Interest cost135 137 27 25 7 
Expected return on plan assets(201)(197)(39)(35)(3)(3)
Amortization of prior service credits(6)(6) — (1)(1)
Amortization of net losses/(gains)18 16 4 (6)(6)
Special termination benefits7 (1) —  — 
Total other pension and retiree medical benefits income(47)(51)(8)(8)(3)(2)
Total$33 $25 $1 $— $4 $