CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 886.3	$ 894.3
Accounts receivable, net	513.4	507.4
Inventories	447.0	414.8
Other current assets	90.5	103.0
Total current assets	1,937.2	1,919.5
Property, plant and equipment	2,478.9	2,386.6
Less: accumulated depreciation and amortization	1,263.7	1,228.3
Property, plant and equipment, net	1,215.2	1,158.3
Operating lease right-of-use assets	101.1	104.4
Investments in affiliated companies	208.8	204.9
Goodwill	107.8	107.3
Intangible assets, net	17.8	18.4
Deferred income taxes	99.0	65.6
Other noncurrent assets	36.7	38.4
Total Assets	3,723.6	3,616.8
Current liabilities:
Notes payable and other current debt	2.2	2.2
Accounts payable	233.8	215.4
Accrued salaries, wages and benefits	65.7	76.8
Income taxes payable	59.0	24.8
Operating lease liabilities	16.2	16.0
Other current liabilities	158.0	183.8
Total current liabilities	534.9	519.0
Long-term debt	206.1	206.7
Deferred income taxes	14.5	14.3
Pension and other postretirement benefits	27.2	28.2
Long-term operating lease liabilities	89.9	93.0
Deferred compensation benefits	19.0	19.1
Other long-term liabilities	55.8	51.6
Total Liabilities	947.4	931.9
Commitments and contingencies
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 in 2023 and 2022; shares outstanding: 74.2 million and 74.1 million	18.8	18.8
Capital in excess of par value	181.4	232.2
Retained earnings	3,113.6	2,987.8
Accumulated other comprehensive loss	(168.4)	(183.0)
Treasury stock, at cost (1.1 million and 1.2 million shares)	(369.2)	(370.9)
Total Equity	2,776.2	2,684.9
Total Liabilities and Equity	$ 3,723.6	$ 3,616.8