SEGMENT REPORTING - Sales by Type of Products (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of products and services [line items] | |||
| Revenue from contracts with customers | $ 61,352 | $ 62,441 | $ 68,275 |
| Flat products | |||
| Disclosure of products and services [line items] | |||
| Revenue from contracts with customers | 34,076 | 35,376 | 38,647 |
| Long products | |||
| Disclosure of products and services [line items] | |||
| Revenue from contracts with customers | 12,452 | 13,386 | 14,124 |
| Tubular products | |||
| Disclosure of products and services [line items] | |||
| Revenue from contracts with customers | 1,883 | 1,748 | 2,160 |
| Mining products | |||
| Disclosure of products and services [line items] | |||
| Revenue from contracts with customers | 1,512 | 1,191 | 1,269 |
| Others | |||
| Disclosure of products and services [line items] | |||
| Revenue from contracts with customers | $ 11,429 | $ 10,740 | $ 12,075 |