Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 648.7	$ 618.7
Short-term marketable debt securities	77.7	86.1
Accounts receivable, net of allowance for credit losses and customer deductions of $20.2 million and $14.3 million as of September 30, 2022 and December 31, 2021, respectively	1,112.8	1,071.0
Inventories	994.9	902.5
Prepaid expenses and other current assets	67.3	47.0
Federal and state income taxes receivable	6.1	7.4
Total current assets	2,907.5	2,732.7
Property, plant, and equipment, net	3,813.2	3,529.0
Goodwill	922.4	923.5
Other intangible assets, net	277.4	308.4
Operating lease right-of-use assets	286.8	238.3
Long-term marketable debt securities	67.1	60.0
Other long-term assets	70.0	44.9
Total assets	8,344.4	7,836.8
Current liabilities:
Operating lease obligations	72.5	67.1
Finance lease obligations	1.8	1.7
Accounts payable	485.3	452.4
Dividends payable	118.8	96.3
Accrued liabilities	259.5	255.0
Accrued interest	25.5	12.3
Total current liabilities	963.4	884.8
Long-term liabilities:
Long-term debt	2,473.1	2,471.5
Operating lease obligations	221.4	179.3
Finance lease obligations	11.3	12.7
Deferred income taxes	513.7	465.9
Compensation and benefits	129.2	157.4
Other long-term liabilities	61.1	58.0
Total long-term liabilities	3,409.8	3,344.8
Commitments and contingent liabilities
Stockholders' equity:
Common stock, par value $0.01 per share, 300.0 million shares authorized, 93.7 million and 93.5 million shares issued as of September 30, 2022 and December 31, 2021, respectively	0.9	0.9
Additional paid in capital	600.6	579.4
Retained earnings	3,443.5	3,102.1
Accumulated other comprehensive loss	(73.8)	(75.2)
Total stockholders' equity	3,971.2	3,607.2
Total liabilities and stockholders' equity	$ 8,344.4	$ 7,836.8