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Quarterly report pursuant to Section 13 or 15(d)

SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Revenues (Details)

v3.20.2
SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Revenues (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues $ 1,646.0 $ 555.6 $ 3,097.8 [1] $ 1,455.8
Realization of deferred revenue 0.0 0.0 34.6 0.0
Steel and Manufacturing [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 1,261.7 0.0 2,194.3 0.0
Steel and Manufacturing [Member] | Carbon Steel [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 821.2 0.0 1,391.6 0.0
Steel and Manufacturing [Member] | Stainless and Electrical Steel [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 303.2 0.0 585.1 0.0
Steel and Manufacturing [Member] | Other Product Lines [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 137.3 0.0 217.6 0.0
Mining and Pelletizing [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 384.3 555.6 903.5 1,455.8
Mining and Pelletizing [Member] | Iron Ore [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues [1] 357.1 515.0 838.1 1,357.8
Mining and Pelletizing [Member] | Freight [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 27.2 40.6 65.4 98.0
Automotive [Member] | Steel and Manufacturing [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 920.0 0.0 1,404.0 0.0
Infrastructure and Manufacturing [Member] | Steel and Manufacturing [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 198.8 0.0 446.2 0.0
Distributors and Converters [Member] | Steel and Manufacturing [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues 142.9 0.0 344.1 0.0
Steel Producers [Member] | Mining and Pelletizing [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues [1] 384.3 555.6 903.5 1,455.8
Non-US [Member] Ìý Ìý Ìý Ìý
Disaggregation of Revenue [Line Items] Ìý Ìý Ìý Ìý
Revenues $ 265.0 $ 138.9 $ 487.7 $ 318.3
[1] 1 Includes Realization of deferred revenue of $34.6 million for the nine months ended SeptemberÌý30, 2020.