RETIREMENT BENEFITS - Health Care Cost-Trend Rate (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| U.S. | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans | ||
| Health care cost increase following year (as a percent) | 7.50% | 6.50% |
| Ultimate rate to which cost increase is assumed to decline (as a percent) | 5.00% | 5.00% |
| Year in which the ultimate rate is reached | 2036 | 2031 |
| Non-U.S. | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans | ||
| Health care cost increase following year (as a percent) | 8.14% | 9.20% |
| Ultimate rate to which cost increase is assumed to decline (as a percent) | 7.82% | 6.93% |
| Year in which the ultimate rate is reached | 2030 | 2030 |