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Quarterly report pursuant to Section 13 or 15(d)

ACQUISITION OF AK STEEL - Overview (Details)

v3.20.2
ACQUISITION OF AK STEEL - Overview (Details)
$ in Millions
3 Months Ended 7 Months Ended 9 Months Ended 12 Months Ended
Mar. 13, 2020
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Oct. 01, 2020
USD ($)
Business Acquisition [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Revenues Ìý $ 1,646.0 $ 555.6 Ìý $ 3,097.8 [1] $ 1,455.8 Ìý Ìý
Net income (loss) Ìý (10.0) 90.9 Ìý (186.0) 229.6 Ìý Ìý
Amortization of inventory step-up Ìý Ìý Ìý Ìý 74.0 0.0 Ìý Ìý
Acquisition-related costs Ìý 7.5 $ 0.0 Ìý 68.4 $ 0.0 Ìý Ìý
AK Steel Holding Corporation [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Business Acquisition [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Business Acquisition, Shares Exchange Ratio 0.400 Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period Ìý Ìý Ìý Ìý Ìý Ìý $ 6,359.4 Ìý
Revenues Ìý 1,261.7 Ìý $ 2,194.3 Ìý Ìý Ìý Ìý
Net income (loss) Ìý (30.4) Ìý (292.0) Ìý Ìý Ìý Ìý
Amortization of inventory step-up Ìý 14.6 Ìý 74.0 Ìý Ìý Ìý Ìý
Severance costs Ìý 2.4 Ìý $ 35.1 Ìý Ìý Ìý Ìý
Acquisition-related costs Ìý $ 0.6 Ìý Ìý $ 25.6 Ìý Ìý Ìý
Business Combination, Consideration Transferred $ 1,535.1 Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Forecast [Member] | AK Steel Holding Corporation [Member] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Business Acquisition [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Cost synergies Ìý Ìý Ìý Ìý Ìý Ìý Ìý $ 150.0
[1] 1 Includes Realization of deferred revenue of $34.6 million for the nine months ended SeptemberÌý30, 2020.