SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Investment valuation, Future contract (Details) - Abbott Laboratories Stock Retirement Plan - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ||
| Net appreciation in fair value of investments | $ 2,619,788,000 | |
| Futures contracts | ||
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ||
| Notional amount | 998,000 | $ 629,000 |
| Net appreciation in fair value of investments | $ 32,000 |