XML 70 R21.htm IDEA: XBRL DOCUMENT
v3.22.4

ASSET RETIREMENT OBLIGATIONS | 12 Months Ended
--- | ---
Dec. 31, 2022
Environmental Remediation Obligations [Abstract] |
ASSET RETIREMENT OBLIGATIONS | NOTE 13 - ASSET RETIREMENT OBLIGATIONS The accrued closure obligation provides for contractual and legal obligations related to our indefinitely idled and closed operations and for the eventual closure of our active operations. The closure date for each of our active mine sites was determined based on the exhaustion date of the remaining mineral reserves, and the amortization of the related asset and accretion of the liability is recognized over the estimated mine lives. The closure date and expected timing of the capital requirements to meet our obligations for our indefinitely idled or closed mines is determined based on the unique circumstances of each property. For indefinitely idled or closed mines, the accretion of the liability is recognized over the anticipated timing of remediation. As the majority of our asset retirement obligations at our steelmaking operations have indeterminate settlement dates, asset retirement obligations have been recorded at present values using estimated ranges of the economic lives of the underlying assets. We performed a detailed assessment of our asset retirement obligations related to our active operations most recently in 2020 in accordance with our accounting policy, which requires us to perform an in-depth evaluation of the liability every three years in addition to routine annual assessments. In 2020, we employed third-party specialists to assist in the evaluation. The following is a summary of our asset retirement obligations:
| December 31,
(In millions) | 2022 |  | 2021
Asset retirement obligations 1 | $ | 520 |  |  | $ | 449 |
Less: current portion | 21 |  |  | 35 |
Long-term asset retirement obligations | $ | 499 |  |  | $ | 414 |
1 Includes $277 million and $293 million related to our active operations as of December 31, 2022 and 2021, respectively.
The following is a roll-forward of our asset retirement obligation liability:
(In millions) | 2022 |  | 2021 |
Asset retirement obligation as of January 1 | $ | 449 |  |  | $ | 342 |  |
Increase from acquisitions | — |  |  | 116 |  |
Reclassification from environmental obligations | 63 |  |  | — |  |
Accretion expense | 26 |  |  | 18 |  |
Remediation payments | (40) |  |  | (29) |  |
Revision in estimated cash flows | 22 |  |  | 2 |  |
Asset retirement obligation as of December 31 | $ | 520 |  |  | $ | 449 |  |
The increase from revision in estimated cash flows primarily relates to rising electricity costs associated with required water management systems related to closed coal mines in Pennsylvania.

X
- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -URI https://asc.fasb.org/subtopic&trid=2175671 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
Name: | us-gaap_AssetRetirementObligationDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EnvironmentalRemediationObligationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration