Revenue from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table provides disaggregated sales and other operating revenue by product or service, excluding intersegment revenues:    

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(Dollars in millions)
Sales and other operating revenue:
Cokemaking	$	275.8	$	363.9	$	937.3	$	1,073.0
Energy	11.2		13.7		36.3		40.4
Logistics	8.0		16.0		24.0		57.4
Operating and licensing fees	7.1		9.6		22.8		29.3
Other	0.1		1.1		2.5		3.0
Sales and other operating revenue	$	302.2	$	404.3	$	1,022.9	$	1,203.1

The following table provides disaggregated sales and other operating revenue by customer:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(Dollars in millions)
Sales and other operating revenue:
AM USA	$	154.2	$	196.8	$	530.3	$	586.4
AM Brazil	7.1		9.5		22.8		29.2
AK Steel	79.0		109.7		276.7		326.5
U.S. Steel	49.4		68.9		159.3		191.9
Other	12.5		19.4		33.8		69.1
Sales and other operating revenue	$	302.2	$	404.3	$	1,022.9	$	1,203.1