GOODWILL AND INTANGIBLE ASSETS AND LIABILITIES - Goodwill (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2022 |
Dec. 31, 2021 |
|
| Goodwill [Line Items] | Ìý | Ìý |
| Goodwill | $ 1,127 | $ 1,116 |
| Steelmaking | Ìý | Ìý |
| Goodwill [Line Items] | Ìý | Ìý |
| Goodwill | 953 | 942 |
| Goodwill, period increase (decrease) | 11 | Ìý |
| Other Businesses | Ìý | Ìý |
| Goodwill [Line Items] | Ìý | Ìý |
| Goodwill | $ 174 | $ 174 |
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| 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. No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|