CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 446.2	$ 853.9
Accounts receivable, net	479.4	512.0
Inventories	419.2	434.7
Other current assets	138.2	135.8
Total current assets	1,483.0	1,936.4
Property, plant and equipment	2,863.6	2,738.0
Less: accumulated depreciation and amortization	1,369.9	1,324.7
Property, plant and equipment, net	1,493.7	1,413.3
Operating lease right-of-use assets	110.3	99.2
Investments in affiliated companies	198.2	210.0
Goodwill	107.3	108.5
Intangible assets, net	12.9	15.1
Deferred income taxes	33.9	25.7
Other noncurrent assets	50.1	21.3
Total Assets	3,489.4	3,829.5
Current liabilities:
Notes payable and other current debt	132.9	134.0
Accounts payable	211.7	242.4
Accrued salaries, wages and benefits	82.9	105.9
Income taxes payable	16.9	16.6
Operating lease liabilities	20.3	17.7
Other current liabilities	169.0	155.2
Total current liabilities	633.7	671.8
Long-term debt	72.9	72.8
Deferred income taxes	13.7	12.7
Pension and other postretirement benefits	29.1	29.6
Operating lease liabilities	84.6	84.5
Deferred compensation benefits	15.5	18.6
Other long-term liabilities	63.1	58.5
Total Liabilities	912.6	948.5
Commitments and contingencies (Note 16)
Equity:
Preferred stock, 3.0 million shares authorized; 0 shares issued and outstanding	0.0	0.0
Common stock, par value $0.25 per share; 200.0 million shares authorized; shares issued: 75.3 million and 75.3 million as of June 30,2024 and December 31, 2023, respectively; shares outstanding: 72.6 million and 73.5 million as of June 30, 2024 and December 31, 2023, respectively	18.8	18.8
Capital in excess of par value	33.5	120.2
Retained earnings	3,720.9	3,523.4
Accumulated other comprehensive loss	(216.9)	(143.8)
Treasury stock, at cost (2.7 million and 1.8 million shares)	(979.5)	(637.6)
Total Equity	2,576.8	2,881.0
Total Liabilities and Equity	$ 3,489.4	$ 3,829.5