Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 647.6	$ 358.0
Restricted cash	0.0	0.8
Restricted investments	0.0	704.6
Accounts receivable, net	1,047.5	785.9
Inventories, net	993.1	873.7
Current assets held for sale	45.8	73.2
Other current assets	83.4	80.7
Total Current Assets	2,817.4	2,876.9
Property, plant and equipment	11,010.8	10,661.0
Allowances for depreciation, depletion and amortization	(4,658.1)	(4,344.3)
Net property, plant and equipment	6,352.7	6,316.7
Goodwill	3,649.5	3,649.5
Other intangibles, net	826.8	847.8
Operating lease right-of-use assets, net	374.9	383.5
Noncurrent assets held for sale	307.3	372.5
Other noncurrent assets	589.2	546.7
Total Assets	14,917.8	14,993.6
Current Liabilities:
Accounts payable	342.2	385.0
Accrued salaries, benefits and payroll taxes	84.5	71.6
Accrued other taxes	76.9	55.4
Accrued interest	40.0	42.8
Current maturities of long-term debt, including discharged debt	399.5	699.1
Current operating lease liabilities	51.5	52.1
Current liabilities held for sale	1.3	4.5
Other current liabilities	145.2	135.1
Total Current Liabilities	1,141.1	1,445.6
Long-term debt	3,944.7	4,340.9
Deferred income taxes, net	913.5	914.3
Noncurrent operating lease liabilities	330.0	335.9
Noncurrent liabilities held for sale	20.1	21.8
Noncurrent asset retirement obligations	378.4	377.7
Other noncurrent liabilities	385.2	384.6
Total Liabilities	7,113.0	7,820.8
Equity:
Common stock, par value $0.01 per share (61,807,161 shares and 62,102,353 shares outstanding at September 30, 2023 and December 31, 2022, respectively)	0.6	0.6
Preferred stock, par value $0.01 per share	0.0	0.0
Additional paid-in capital	3,511.2	3,489.0
Accumulated other comprehensive loss	(35.3)	(38.5)
Retained earnings	4,326.0	3,719.4
Total Shareholders' Equity	7,802.5	7,170.5
Noncontrolling interests	2.3	2.3
Total Equity	7,804.8	7,172.8
Total Liabilities and Equity	$ 14,917.8	$ 14,993.6