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Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING - Segment Assets (Details)

v3.21.1
SEGMENT REPORTING - Segment Assets (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Segment Reporting Information [Line Items] Ìý Ìý
Total assets $ 17,215 $ 16,771
Corporate, Non-Segment Ìý Ìý
Segment Reporting Information [Line Items] Ìý Ìý
Total assets 649 683
Operating Segments Ìý Ìý
Segment Reporting Information [Line Items] Ìý Ìý
Total assets 16,566 16,088
Operating Segments | Steelmaking Ìý Ìý
Segment Reporting Information [Line Items] Ìý Ìý
Total assets 16,271 15,849
Operating Segments | Other Businesses Ìý Ìý
Segment Reporting Information [Line Items] Ìý Ìý
Total assets $ 295 $ 239