COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
Dec. 31, 2021
COMMITMENTS AND CONTINGENCIES [Abstract]
Commitments Due	Unconditional Purchase in millionsObligations Property, Plant & Equipment 2022$ 18.2 Thereafter 0.0 Total$ 18.2 Noncapital (primarily transportation and electricity contracts) 2022$ 22.1 2023–2024 32.2 2025–2026 3.2 Thereafter 10.0 Total$ 67.5
Minimum Royalties Under Mineral Leases	Mineral in millionsLeases Minimum Royalties 2022$ 26.2 2023–2024 39.2 2025–2026 26.2 Thereafter 162.2 Total$ 253.8

Tabular disclosure of unconditional purchase obligation recognized as liability.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25383-109308

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