SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2020

Disclosure Text Block [Abstract]

Revenues from Product Sales and Services [Table Text Block]

The following table represents our consolidated Revenues (excluding intercompany revenues) by market:

	(In Millions)
	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Steel and Manufacturing:
Automotive	$	920.0	$	—	$	1,404.0	$	—
Infrastructure and manufacturing	198.8		—		446.2		—
Distributors and converters	142.9		—		344.1		—
Total Steel and Manufacturing	1,261.7		—		2,194.3		—
Mining and Pelletizing:
Steel producers1	384.3		555.6		903.5		1,455.8
Total revenues	$	1,646.0	$	555.6	$	3,097.8	$	1,455.8
1 Includes Realization of deferred revenue of $34.6 million for the nine months ended September 30, 2020.

    The following table represents our consolidated Revenues (excluding intercompany revenues) by product line:

	(In Millions)
	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Steel and Manufacturing:
Carbon steel	$	821.2	$	—	$	1,391.6	$	—
Stainless and electrical steel	303.2		—		585.1		—
Tubular products, components and other	137.3		—		217.6		—
Total Steel and Manufacturing	1,261.7		—		2,194.3		—
Mining and Pelletizing:
Iron ore1	357.1		515.0		838.1		1,357.8
Freight	27.2		40.6		65.4		98.0
Total Mining and Pelletizing	384.3		555.6		903.5		1,455.8
Total revenues	$	1,646.0	$	555.6	$	3,097.8	$	1,455.8
1 Includes Realization of deferred revenue of $34.6 million for the nine months ended September 30, 2020.

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

The following is a roll forward of our allowance for credit losses associated with Accounts receivable, net:

	(In Millions)
	2020		2019
Allowance for credit losses as of January 1	$	—	$	—
Increase in allowance	5.2		—
Allowance for credit losses as of September 30	$	5.2	$	—

Schedule of Inventory, Current [Table Text Block]

The following table presents the detail of our Inventories in the Statements of Unaudited Condensed Consolidated Financial Position:

	(In Millions)
	September 30, 2020		December 31, 2019
Product inventories
Finished and semi-finished goods	$	940.5	$	114.1
Work-in-process	78.2		68.7
Raw materials	382.3		9.4
Total product inventories	1,401.0		192.2
Manufacturing supplies and critical spares	394.1		125.2
Inventories	$	1,795.1	$	317.4

Contract with Customer, Asset and Liability [Table Text Block]

The table below summarizes our deferred revenue balances:

	(In Millions)
	Deferred Revenue (Current)				Deferred Revenue (Long-Term)
	2020		2019		2020		2019
Opening balance as of January 1	$	22.1	$	21.0	$	25.7	$	38.5
Net decrease	(19.8)		(2.7)		(25.7)		(8.5)
Closing balance as of September 30	$	2.3	$	18.3	$	—	$	30.0

Schedule of Accrued Liabilities [Table Text Block]

The following table presents the detail of our Accrued liabilities in the Statements of Unaudited Condensed Consolidated Financial Position:

	(In Millions)
	September 30, 2020		December 31, 2019
Accrued employment costs	$	146.6	$	61.7
Accrued interest	81.8		29.0
Accrued dividends	1.0		17.8
Other	50.0		17.8
Accrued liabilities	$	279.4	$	126.3

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

A reconciliation of capital additions to cash paid for capital expenditures is as follows:

	(In Millions)
	Nine Months Ended September 30,
	2020		2019
Capital additions	$	333.0	$	505.6
Less:
Non-cash accruals	(88.4)		26.1
Right-of-use assets - finance leases	42.5		29.3
Grants	—		(10.5)
Cash paid for capital expenditures including deposits	$	378.9	$	460.7

    Cash payments (receipts) for income taxes and interest are as follows:

	(In Millions)
	Nine Months Ended September 30,
	2020		2019
Taxes paid on income	$	3.2	$	0.1
Income tax refunds	(119.3)		(117.9)
Interest paid on debt obligations net of capitalized interest1	106.0		71.9
1 Capitalized interest was $38.0 million and $16.9 million for the nine months ended September 30, 2020 and 2019, respectively.

    Non-Cash Investing and Financing Activities

	(In Millions)
	Nine Months Ended September 30,
	2020		2019
Fair value of common shares issued for consideration for business combination	$	617.6	$	—
Fair value of equity awards assumed from AK Steel acquisition	3.9		—