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Pensions and Other Benefit Plans (Tables)
3 Months Ended
Mar. 30, 2025
Retirement Benefits [Abstract]  
Components of Net Periodic Benefit Cost
Components of net periodic benefit cost
Net periodic benefit costs for the Company’s defined benefit retirement plans and other benefit plans include the following components:
Fiscal First Quarter Ended
 Retirement PlansOther Benefit Plans
(Dollars in Millions)March 30, 2025March 31, 2024March 30, 2025March 31, 2024
Service cost$2142247269
Interest cost3513525452
Expected return on plan assets(587)(642)(2)(2)
Amortization of prior service cost/(credit)
(46)(46)
Recognized actuarial (gains)/losses83431613
Net periodic benefit cost/(credit)$15(69)140132