CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 519.4	$ 439.1
Accounts receivable, net	373.0	319.3
Inventories	294.9	235.7
Other current assets	51.0	64.6
Total current assets	1,238.3	1,058.7
Property, plant and equipment	1,939.1	1,820.1
Less: accumulated depreciation and amortization	1,055.7	980.8
Property, plant and equipment, net	883.4	839.3
Operating lease right-of-use assets	67.5	70.1
Investments in affiliated companies	209.6	192.7
Goodwill	109.3	107.8
Intangible assets, net	30.6	29.8
Deferred income taxes	22.3	14.0
Pension and other postretirement benefits	0.0	4.3
Other noncurrent assets	21.8	24.7
Total Assets	2,582.8	2,341.4
Current liabilities:
Notes payable and other current debt	2.3	2.3
Accounts payable	180.3	156.8
Pension and other postretirement benefits	2.2	2.2
Accrued salaries, wages and benefits	96.1	73.0
Income taxes payable	30.2	6.4
Operating lease liabilities	9.9	9.6
Other current liabilities	126.7	91.3
Total current liabilities	447.7	341.6
Long-term debt	253.4	255.0
Deferred income taxes	4.5	15.5
Pension and other postretirement benefits	51.6	52.5
Operating lease liabilities	59.9	62.4
Other long-term liabilities	46.8	41.2
Total Liabilities	863.9	768.2
Commitments and contingencies (Note 17)
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 and 100.0 million shares authorized; shares issued: 75.3 million and 75.3 million; shares outstanding: 73.9 million and 74.1 million	18.8	18.8
Capital in excess of par value	268.2	272.7
Retained earnings	1,773.4	1,549.4
Accumulated other comprehensive loss	(159.5)	(149.6)
Treasury stock, at cost (1.4 million and 1.2 million shares)	(182.0)	(118.1)
Total Equity	1,718.9	1,573.2
Total Liabilities and Equity	$ 2,582.8	$ 2,341.4