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Post-Employment Benefits (Tables) | 9 Months Ended
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Sep. 30, 2025
Postemployment Benefits [Abstract] |
Schedule of Net Periodic Benefit Costs | Net costs recognized for Abbott’s major defined benefit plans and post-employment medical and dental benefit plans are as follows:
|  | Defined Benefit Plans |  | Medical 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) |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  | 2025 |  | 2024
Service cost - benefits earned during the period |  | $ | 55 |  |  | $ | 61 |  |  | $ | 162 |  |  | $ | 182 |  |  | $ | 11 |  |  | $ | 9 |  |  | $ | 32 |  |  | $ | 29 |
Interest cost on projected benefit obligations |  | 124 |  |  | 118 |  |  | 369 |  |  | 352 |  |  | 17 |  |  | 13 |  |  | 51 |  |  | 40 |
Expected return on plan assets |  | (282) |  |  | (263) |  |  | (841) |  |  | (788) |  |  | (7) |  |  | (6) |  |  | (20) |  |  | (18) |
Net amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Actuarial loss, net |  | 2 |  |  | 6 |  |  | 6 |  |  | 18 |  |  | — |  |  | — |  |  | — |  |  | (1) |
Prior service cost (credit) |  | — |  |  | — |  |  | 1 |  |  | 1 |  |  | (2) |  |  | (3) |  |  | (7) |  |  | (10) |
Net cost (credit) |  | $ | (101) |  |  | $ | (78) |  |  | $ | (303) |  |  | $ | (235) |  |  | $ | 19 |  |  | $ | 13 |  |  | $ | 56 |  |  | $ | 40 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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