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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)
3 Months Ended
Mar. 31, 2023
Retirement Benefits [Abstract]  
Defined Contribution Plan Disclosures
Net periodic benefit cost or income for our pension and other postretirement benefit plans consisted of the following (in millions):
Pension PlansOther Postretirement
Benefit Plans
Three Months Ended
March 31,
2023
April 1,
2022
March 31,
2023
April 1,
2022
Service cost$24 $22 $1 $
Interest cost81 51 7 
Expected return on plan assets1
(119)(149)(4)(4)
Amortization of prior service credit — (1)(1)
Amortization of net actuarial loss (gain)24 29 (1)— 
Net periodic benefit cost (income)$10 $(47)$2 $
1The weighted-average expected long-term rates of return on plan assets used in computing 2023 net periodic benefit cost (income) were 7.00 percent for pension plans and 3.75 percent for other postretirement benefit plans.