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Pension Benefits Projected Benefit Obligations (Details) - Pension - Global Plans [Member] - USD ($)
$ in Millions
Jan. 01, 2022
Jan. 02, 2021
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation $ 3,707 $ 4,035
Projected benefit obligation, accumulated benefit obligation 3,669 3,988
Projected benefit obligation, fair value of plan assets $ 2,984 $ 3,246