PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Multiemployer Plan (Details) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2023
USD ($)
|
|
| Multiemployer Plan [Line Items] | |||
| Contributions | $ 135 | $ 140 | $ 143 |
| Steelworkers Pension Trust | |||
| Multiemployer Plan [Line Items] | |||
| Pension Plan EIN | 236648508 | ||
| Pension Plan Number | 499 | ||
| Pension Protection Act Zone Status | Green | Green | |
| FIP/RP Status Pending/Implemented | No | ||
| Contributions | $ 112 | $ 117 | 119 |
| Surcharge Imposed | No | ||
| Total actuarial liability | 6,815 | ||
| Market value of assets | $ 6,868 | ||
| Funded ratio | 1.01 | ||
| IAM National Pension Fund's National Pension Plan | |||
| Multiemployer Plan [Line Items] | |||
| Pension Plan EIN | 516031295 | ||
| Pension Plan Number | 002 | ||
| Pension Protection Act Zone Status | Red | Red | |
| FIP/RP Status Pending/Implemented | Implemented | ||
| Contributions | $ 22 | $ 22 | 23 |
| Surcharge Imposed | Yes | ||
| Other Plans | |||
| Multiemployer Plan [Line Items] | |||
| Contributions | $ 1 | $ 1 | $ 1 |
| X | ||||||||||
- Definition Multiemployer Plan, Pension, Significant, Funded Status Percentage No definition available.
|
| X | ||||||||||
- Definition Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of accumulated benefit obligation for multiemployer pension plan determined to be individually significant. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Indicates certified zone status of multiemployer pension plan determined to be individually significant. Acceptable values are "Green", "Yellow", "Orange", "Red", "Other", and "NA". Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Employer Identification Number (EIN) or Tax Identification Number (TIN) assigned by Internal Revenue Service (IRS) for multiemployer pension plan determined to be individually significant, in nine-digit numeric format. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Indicates whether funding improvement plan or rehabilitation plan was implemented or pending for multiemployer pension plan, determined to be individually significant. Acceptable values are "No", "Pending", "Implemented", "Other", and "NA". Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of asset available for benefits to participants in multiemployer pension plan determined to be individually significant. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Plan number for multiemployer pension plan determined to be individually significant, in three-digit numeric format. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Indicates whether employer paid surcharge to multiemployer pension plan determined to be individually significant. Acceptable values are "No", "Yes", and "NA". Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- 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/exampleRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|