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Retirement Benefits (Tables)
9 Months Ended
Oct. 03, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic Pension Benefit The components of net periodic pension benefit related to the frozen U.K. pension for the three and nine months ended October 3, 2025 and September 27, 2024, respectively, were as follows:
 Three Months EndedNine Months Ended
October 3,September 27,October 3,September 27,
Dollars in millions2025202420252024
Components of net periodic pension benefit
Interest cost$16 $15 $46 $45 
Expected return on plan assets(29)(28)(83)(84)
Amortization of prior service cost— 
Recognized actuarial loss— 
Net periodic pension benefit$(12)$(12)$(33)$(36)