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Post-Employment Benefits
9 Months Ended
Sep. 30, 2024
Postemployment Benefits [Abstract]  
Post-Employment Benefits
Note 13 — Post-Employment Benefits

Retirement plans consist of defined benefit, defined contribution, and medical and dental plans. Net periodic benefit costs, other than service costs, are recognized in the Other (income) expense, net line of the Condensed Consolidated Statement of Earnings. Net costs recognized for the three and nine months ended September 30 for Abbott’s major defined benefit plans and post-employment medical and dental benefit plans are as follows:

Defined Benefit PlansMedical and Dental Plans
Three Months Ended September 30,Nine Months Ended September 30,Three Months Ended September 30,Nine Months Ended September 30,
(in millions)20242023202420232024202320242023
Service cost - benefits earned during the period$61 $56 $182 $174 $$10 $29 $29 
Interest cost on projected benefit obligations118 114 352 342 13 15 40 45 
Expected return on plan assets(263)(244)(788)(729)(6)(6)(18)(18)
Curtailment gain— — — (14)— — — — 
Net amortization of:
Actuarial loss, net18 — (1)(1)(2)
Prior service cost (credit)— (3)(3)(10)(10)
Net cost (credit)$(78)$(71)$(235)$(218)$13 $15 $40 $44 
Abbott funds its domestic defined benefit plans according to Internal Revenue Service funding limitations. International pension plans are funded according to similar regulations. In the first nine months of 2024 and 2023, $298 million and $302 million, respectively, were contributed to defined benefit plans. In the first nine months of 2024 and 2023, $28 million was contributed, in each year, to the post-employment medical and dental plans.