Pension And Postretirement Benefits (Employee Benefit Obligation Amounts Recognized) (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Noncurrent portion of employee benefit obligation | $ 8,478 | $ 9,025 |
| Pension Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current portion of employee benefit obligation | 0 | 0 |
| Employee benefit obligation | (1,950) | (3,025) |
| Net amount recognized | (1,950) | (3,025) |
| Pension Benefits | International | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Noncurrent portion of employee benefit obligation | 212 | 157 |
| Postretirement Benefits | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current portion of employee benefit obligation | (499) | (455) |
| Employee benefit obligation | (5,256) | (4,740) |
| Net amount recognized | (5,755) | (5,195) |
| Postretirement Benefits | International | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Noncurrent portion of employee benefit obligation | $ 1,060 | $ 1,103 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- 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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- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- 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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- Definition For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement that is payable after one year (or beyond the operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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