DEBT (Tables)

12 Months Ended

Dec. 31, 2022

DEBT [Abstract]

Debt

	Effective
in millions	Interest Rates	2022	2021
Short-term Debt
Bank line of credit expires 2027 1		$            100.0	$                0.0
Commercial paper expires 2027 1		0.0	0.0
Total short-term debt		$            100.0	$                0.0
Long-term Debt
Bank line of credit expires 2027 1		$                0.0	$                0.0
Commercial paper expires 2027 1		550.0	0.0
Delayed draw term loan due 2026		550.0	1,100.0
4.50% notes due 2025	4.65%	400.0	400.0
3.90% notes due 2027	4.00%	400.0	400.0
3.50% notes due 2030	3.94%	750.0	750.0
7.15% notes due 2037	8.05%	129.2	129.2
4.50% notes due 2047	4.59%	700.0	700.0
4.70% notes due 2048	5.42%	460.9	460.9
Other notes	0.37%	1.8	9.5
Total long-term debt - face value		$         3,941.9	$         3,949.6
Unamortized discounts and debt issuance costs		(66.2)	(69.6)
Total long-term debt - book value		$         3,875.7	$         3,880.0
Less current maturities		0.5	5.2
Total long-term debt - reported value		$         3,875.2	$         3,874.8
Estimated fair value of long-term debt		$         3,671.9	$         4,418.5

¹ Borrowings on the bank line of credit and commercial paper are classified as short-term if we intend to repay within twelve months and as long-term if we have the intent and ability to extend payment beyond twelve months.

Schedule of Principal and Interest Debt Payments

in millions	Total	Principal	Interest
Scheduled Debt Payments (excluding the line of credit)
2023	$          184.6	$            0.5	$        184.1
2024	182.1	0.5	181.6
2025	561.7	400.5	161.2
2026	689.8	550.4	139.4
2027	1,059.6	950.0	109.6

Standby Letters of Credit

in millions
Standby Letters of Credit
Risk management insurance	$          71.5
Reclamation/restoration requirements	7.1
Total	$          78.6