Pension and Other Benefit Programs - Benefit Obligation, Benefits Paid During the Period, Accrued Benefit Cost (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Change in benefit obligation: | |||
| Benefit obligation at the end of year | $ 595 | $ 598 | $ 644 |
| Interest cost | 29 | 29 | 30 |
| Actuarial (gain)/loss | 15 | (28) | |
| Benefits paid | (47) | (47) | |
| Amounts recognized in the accompanying consolidated balance sheets: | |||
| Accrued employee benefits | (174) | (170) | |
| Post-retirement Benefit Plans | |||
| Change in benefit obligation: | |||
| Benefit obligation at the end of year | 115 | 116 | $ 129 |
| Interest cost | 6 | 5 | |
| Actuarial (gain)/loss | 0 | (7) | |
| Employee contributions | 2 | 2 | |
| Benefits paid | (9) | (13) | |
| Amounts recognized in the accompanying consolidated balance sheets: | |||
| Other current liabilities | (9) | (9) | |
| Accrued employee benefits | $ (106) | $ (107) | |
| X | ||||||||||
- Definition Defined benefit plan amount recognized in balance sheet. No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of contributions received by defined benefit plan from participant which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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