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Pensions and Other Benefit Plans (Tables)
 6 Months Ended
Jul. 03, 2022
Retirement Benefits [Abstract]  
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 Second Quarter EndedFiscal Six Months Ended
 Retirement PlansOther Benefit PlansRetirement PlansOther Benefit Plans
(Dollars in Millions)July 3, 2022July 4, 2021July 3, 2022July 4, 2021July 3, 2022July 4, 2021July 3, 2022July 4, 2021
Service cost$319 327 80 77 640 680 160 154 
Interest cost229 193 27 21 459 386 53 41 
Expected return on plan assets(693)(647)(2)(2)(1,392)(1,327)(4)(4)
Amortization of prior service cost/(credit)(46)(45)(2)(7)(92)(90)(3)(15)
Recognized actuarial losses167 316 31 37 329 630 61 75 
Curtailments and settlements— — — — 1 1 — — 
Net periodic benefit cost/(credit)$(24)144 134 126 (55)280 267 251