Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 764.0	$ 679.5
Short-term marketable debt securities	92.3	87.9
Accounts receivable, net of allowance for credit losses and customer deductions of $13.3 million and $12.6 million as of March 31, 2020, and December 31, 2019, respectively	879.5	845.6
Inventories	809.9	794.1
Prepaid expenses and other current assets	67.9	44.8
Federal and state income taxes receivable		26.5
Total current assets	2,613.6	2,478.4
Property, plant, and equipment, net	3,138.6	3,151.7
Goodwill	918.7	918.7
Other intangible assets, net	329.2	338.8
Operating lease right-of-use assets	235.3	234.3
Long-term marketable debt securities	57.1	58.1
Other long-term assets	55.1	55.8
Total assets	7,347.6	7,235.8
Current liabilities:
Operating lease obligations	64.3	62.6
Finance lease obligations	1.6	1.5
Accounts payable	389.0	351.9
Dividends payable	77.0	76.6
Accrued liabilities	178.8	217.5
Accrued interest	30.2	13.7
Federal and state income taxes payable	3.7
Total current liabilities	744.6	723.8
Long-term liabilities:
Long-term debt	2,477.4	2,476.8
Operating lease obligations	177.2	177.6
Finance lease obligations	15.6	16.0
Deferred income taxes	354.3	340.1
Compensation and benefits	372.3	375.5
Other long-term liabilities	56.3	55.0
Total long-term liabilities	3,453.1	3,441.0
Commitments and contingent liabilities
Stockholders' equity:
Common stock, par value $0.01 per share, 300.0 million shares authorized, 94.8 million and 94.7 million shares issued as of March 31, 2020 and December 31, 2019, respectively	0.9	0.9
Additional paid in capital	534.9	524.8
Retained earnings	2,771.1	2,704.8
Accumulated other comprehensive loss	(157.0)	(159.5)
Total stockholders' equity	3,149.9	3,071.0
Total liabilities and stockholders' equity	$ 7,347.6	$ 7,235.8