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Pension and other postretirement benefits (Tables) | 6 Months Ended
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Jun. 30, 2024
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs | The components of net periodic benefit cost (income) recognized in the Condensed Consolidated Statements of Income for the Pension and Other Postretirement Benefit (OPEB) Plans were:
| Pension and OPEB Plans
| U.S. | Non-U.S.
| Three months ended | Six months ended | Three months ended | Six months ended
| June 30 | June 30 | June 30 | June 30
in $ millions | 2024 | 2023 | 2024 | 2023 | 2024 | 2023 | 2024 | 2023
Service cost | - |  | - |  | - |  | - |  | 10 |  | 8 |  | 20 |  | 16 |
Interest cost | 6 |  | 6 |  | 12 |  | 12 |  | 21 |  | 22 |  | 42 |  | 46 |
Expected return on assets | (5) |  | (5) |  | (10) |  | (10) |  | (22) |  | (23) |  | (44) |  | (46) |
Amortization of: |  |  |  |  |  |  |  |
Past service credit | - |  | - |  | - |  | - |  | (3) |  | (3) |  | (6) |  | (6) |
Actuarial loss | 1 |  | 1 |  | 2 |  | 2 |  | 1 |  | - |  | 2 |  | - |
Settlement gain (i) | - |  | - |  | - |  | - |  | - |  | - |  | (3) |  | - |
Net periodic benefit cost (ii) (iii) | 2 |  | 2 |  | 4 |  | 4 |  | 7 |  | 4 |  | 11 |  | 10 |
(i) Settlement gain of $3 million relates to pension plans divested as part of the sale of the Company's Lime operations in Europe and is included in gain on divestitures and unrealized gains on investments, within Other nonoperating income, net. (ii) Includes net periodic benefit cost of $1 million and $1 million related to OPEB plans for the three months ended June 30, 2024 and June 30, 2023, and $2 million and $2 million for the six months ended June 30, 2024 and June 30, 2023, respectively. (iii) Service cost is included within Cost of revenues and Selling, general and administrative expenses while all other cost components are recorded within Other nonoperating income, net.

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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://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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