REVENUES (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenues from Product Sales and Services [Table Text Block]

The following table represents our Revenues by market:

	(In Millions)
	Year Ended December 31,
	2020		2019		2018
Steelmaking:
Automotive	$	2,062	$	—	$	—
Infrastructure and manufacturing	784		—		—
Distributors and converters	696		—		—
Steel producers1	1,423		1,990		2,332
Total steelmaking	4,965		1,990		2,332
Other Businesses:
Automotive	329		—		—
Infrastructure and manufacturing	34		—		—
Distributors and converters	26		—		—
Total Other Businesses	389		—		—
Total revenues	$	5,354	$	1,990	$	2,332
1 Includes Realization of deferred revenue of $35 million for the year ended December 31, 2020.

The following table represents our consolidated Revenues by product line:

	(Dollars In Millions, Sales Volumes in Thousands)
	Year Ended December 31,
	2020			2019			2018
	Revenue		Volume1	Revenue		Volume1	Revenue		Volume1
Steelmaking:
Hot-rolled steel	$	386	633	$	—	—	$	—	—
Cold-rolled steel	490		682	—		—	—		—
Coated steel	1,747		1,911	—		—	—		—
Stainless and electrical steel	868		416	—		—	—		—
Other steel products	92		141	—		—	—		—
Iron products2	1,335		11,707	1,990		18,583	2,332		20,563
Other	47		N/A	—		—	—		—
Total steelmaking	4,965			1,990			2,332
Other Businesses:
Other	389		N/A	—		N/A	—		N/A
Total revenues	$	5,354		$	1,990		$	2,332
1 Carbon steel products, stainless and electrical steel and plate steel volumes are stated in net tons. Iron product volumes are stated in long tons.
2 Includes Realization of deferred revenue of $35 million for the year ended December 31, 2020.

Deferred Revenue [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	$	21	$	26	$	39
Net increase (decrease)	(15)		1		(26)		(13)
Closing balance as of December 31	$	7	$	22	$	—	$	26