COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2022

COMMITMENTS AND CONTINGENCIES [Abstract]

Commitments Due

	Unconditional
	Purchase
in millions	Obligations
Property, Plant & Equipment
2023	$           33.4
Thereafter	0.0
Total	$           33.4
Noncapital (primarily transportation and electricity contracts)
2023	$           36.3
2024–2025	66.3
2026–2027	52.5
Thereafter	44.5
Total	$         199.6

Minimum Royalties Under Mineral Leases

	Mineral
in millions	Leases
Minimum Royalties
2023	$           25.9
2024–2025	36.9
2026–2027	25.8
Thereafter	150.1
Total	$         238.7