Annual report pursuant to Section 13 and 15(d)

ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Tables)

v3.19.3.a.u2
ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Tables)
 12 Months Ended
Dec. 31, 2019
Environmental Remediation Obligations [Abstract]  
Schedule of Environmental Loss Contingencies and Asset Retirement Obligations [Table Text Block]
The following is a summary of our environmental and mine closure obligations:
 
(In Millions)
 
December 31,
 
2019
 
2018
Environmental
$
2.0

 
$
2.5

Mine closure1
165.3

 
172.4

Total environmental and mine closure obligations
167.3

 
174.9

Less current portion
2.4

 
2.9

Long-term environmental and mine closure obligations
$
164.9

 
$
172.0

 
 
 
 
1 Includes $22.0 million and $35.0 million related to our active operations as of December 31, 2019 and 2018, respectively, with the remaining balance attributable to inactive operations, including our indefinitely idled Empire mine and a closed mine formerly operating as LTV Steel Mining Company.

Asset Retirement Obligations
The following represents a roll forward of our asset retirement obligation liability:
 
(In Millions)
 
December 31,
 
2019
 
2018
Asset retirement obligation at beginning of year
$
172.4

 
$
168.4

Accretion expense
10.1

 
9.5

Remediation payments
(0.8
)
 
(1.0
)
Revision in estimated cash flows
(16.4
)
 
(4.5
)
Asset retirement obligation at end of year
$
165.3

 
$
172.4