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EMPLOYEE BENEFIT PLANS (Tables) | 3 Months Ended
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Mar. 31, 2026
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs | Net periodic benefit costs for qualified pension plans include the following:
| Three Months Ended March 31, |  |
(in millions) | 2026 |  | 2025 |  |  |  |
Service cost | $ | 7 |  |  | $ | 7 |  |  |  |  |
Pension expense included in Wages and benefits | 7 |  |  | 7 |  |  |  |  |
Interest cost | 30 |  |  | 33 |  |  |  |  |
Expected return on assets | (38) |  |  | (37) |  |  |  |  |
Recognized actuarial loss | 1 |  |  | 3 |  |  |  |  |
Pension expense included in Non-operating Expense | $ | (7) |  |  | $ | (1) |  |  |  |  |

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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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